TW200909416A - Conjugated compound having hydroindoloacridine structure and application thereof - Google Patents
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200909416 九、發明說明: 【發明所屬之技術領域】 本發明係有關於一種共輛化合物,特別是有關於具有氫化吲 哚吖啶結構之共輊化合物及其應用。 【先前技術】 磷光金屬錯合物最近已被使用作為有機發光二極體的 磷光摻雜物。在這些被用作有機發光二極體中發光層的金 屬錯合物中,由於電子組態具有強的自旋'軌域耦合使得 環金屬化的銥金屬錯合物引起最廣泛的研究。由於自旋' 軌域耦合造成單重及三重激發態的混成,因此縮短了三重 態的生命期而提高磷光效率。此外發現利用參雜(doping) 的方式可以提高元件的效率,因此採取將磷光物質參雜在 主體材料的方式,而藍色磷光主體材料逐漸變成研究的重 , 點,在之前的文獻報導藍色磷光的主體材料都以咔唑 λ (carbazole)為主,吟峻的衍生物具有高三重態能量,適合用來作為藍色磷:光 的主體材料。有鑑於此,開發新的具有高度熱穩定性與高的三重態 能量之有機化合物,以延長元件使用壽命、提高發光效率仍是一 相當值得產業重視的課題。 【發明内容】 鑒於上述之發明背景中,為了符合產業上之要求,本發明提 供一種新的具有氫化吲哚吖啶結構之共軛化合物及其在有機電子 第5頁 200909416 元件中作為主發光體材料(host material)、電子傳導材料 (electronic transport material )、或是電洞傳導材料(hole transport material)的應用。 本發明之一目的在於提供一種具高度熱穩定性之具有氫化吲 _ 哚吖啶結構之共輛化合物,以提升有機電子元件之使用壽命》 本發明之另一目的在於提供一種具高的三重態能階差之具有氫 化吲哚吖啶結構之共輛化合物以補足現有的一般要應用於藍色磷光之主 ㉟材料所達不到的能階而且通用各類的鱗光材料如銀⑻、始⑻、鐵(〇s) 等紅、藍、綠的金屬錯合物材料,據此,進而達到符合經濟上的效益 與產業上的利用性之功效。 根據以上所述之目的,本發明揭示了一種一種具有氯化十朵〇丫 咬結構之妹化合物及其在有機電子元件巾作為主發紐材料、電 子傳導材料或電洞傳導材料之應用。其中,上述具有氫化,朵〇丫咬 結構之共軛化合物之一般結構如下:200909416 IX. DESCRIPTION OF THE INVENTION: TECHNICAL FIELD OF THE INVENTION The present invention relates to a compound compound, and more particularly to a conjugated compound having a hydrogenated indole structure and its use. [Prior Art] Phosphorescent metal complexes have recently been used as phosphorescent dopants for organic light-emitting diodes. Among these metal complexes used as the light-emitting layer in the organic light-emitting diode, the ring metallization of the base metal complex has caused the most extensive research due to the strong spin 'orbital coupling of the electronic configuration. Due to the spin-rail coupling, the single- and triple-excited states are mixed, thus shortening the lifetime of the triplet and increasing the phosphorescence efficiency. In addition, it has been found that the use of doping can improve the efficiency of the component, so the way of phosphorescent material is mixed in the host material, and the blue phosphorescent host material gradually becomes the focus of research. In the previous literature, blue was reported. Phosphorescent host materials are mainly carbazole, and the high-order triplet energy is suitable for use as a blue phosphorus: light host material. In view of this, the development of new organic compounds with high thermal stability and high triplet energy to extend the life of components and improve luminous efficiency is still a subject worthy of industrial attention. SUMMARY OF THE INVENTION In view of the above-described background of the invention, in order to meet the industrial requirements, the present invention provides a novel conjugated compound having a hydrogenated acridine structure and its use as a main illuminant in organic electronic device page 5, 200909416. Application of a host material, an electronic transport material, or a hole transport material. It is an object of the present invention to provide a highly thermally stable compound compound having a hydrogenated ruthenium acridine structure for improving the service life of an organic electronic component. Another object of the present invention is to provide a high triplet state. A common compound with a hydrogenated acridine structure to complement the existing energy levels that are generally not applicable to the blue phosphorescent main 35 material and common types of luminescent materials such as silver (8) (8) Red, blue, and green metal complex materials such as iron (〇s), according to which, in order to achieve economic benefits and industrial utilization. In accordance with the above objects, the present invention discloses a sister compound having ten chlorinated bite structures and its use as an organic material, an electron conductive material or a hole conducting material in an organic electronic component. Among them, the general structure of the above conjugated compound having a hydrogenated, bitten structure is as follows:
其中,Ri〜R 可以是相同或不同的原子或取代基團。 第6頁 200909416 本說明書亦揭示了上述具有氫化吲哚吖啶結構之共扼化合物的 應用,特別是應用於有機電激發光元件與/或磷光元件中的主發光 體材料、電子傳導材料、與電洞傳導材料;或是應用於其他有機 電子元件之電子傳導材料、電洞傳導材料。 【實施方式】 本發明在此所探討的方向為一種具有氫化吲哚吖啶結構之共 軛化合物及其應用。為了能徹底地瞭解本發明,將在下列的描述中 提出詳盡的製程步驟或組成結構。顯然地,本發明的施行並未限 定於該領域之技藝者所熟習的特殊細節。另一方面,眾所周知的 組成或製程步驟並未描述於細節中,以避免造成本發明不必要之 限制。本發明的較佳體系會詳細描述如下,然而除了這些詳細描 述之外,本發明還可以廣泛地施行在其他的體系中,且本發明的 範圍不受限定,以其之後的專利範圍為準。 本發明之第一實施例揭露一種具有氫化吲哚吖啶結構之共軛 化合物,上述具有氫化吲哚吖咬結構之共輛化合物的一般結構如下:Wherein Ri~R may be the same or different atoms or substituent groups. Page 6 200909416 The present specification also discloses the use of the above ruthenium compound having a hydrogenated acridine structure, in particular, a main illuminant material, an electron conductive material, and an organic electroluminescent device and/or a phosphorescent device. A hole conducting material; or an electron conducting material or a hole conducting material applied to other organic electronic components. [Embodiment] The direction of the present invention as discussed herein is a conjugated compound having a hydrogenated acridine structure and its use. In order to thoroughly understand the present invention, detailed process steps or constituent structures will be presented in the following description. Obviously, the practice of the invention is not limited to the specific details that are apparent to those skilled in the art. On the other hand, well-known components or process steps are not described in detail to avoid unnecessarily limiting the invention. The preferred system of the present invention will be described in detail below, but the present invention may be widely practiced in other systems in addition to the detailed description, and the scope of the present invention is not limited thereto, and the scope of the following patents will prevail. The first embodiment of the present invention discloses a conjugated compound having a hydrogenated acridine structure, and the general structure of the above-mentioned compound having a hydrogenated bite structure is as follows:
第7頁 200909416 其中,W〜R5可以相同或不同,且R1〜R5係獨立選自下列族 群中之一者:氫原子;鹵素取代的芳香基;C1-C20鹵烷基取代的 芳香基;C1-C20鹵烷基取代的芳香烷基;具芳香基取代的C1-C20 烷基;C1-C20烷基(例如:甲基、乙基、丁基、環己基等);C1-C20 烷氧基(alkoxy group);胺基(amino group);具芳香基取代的胺 基;具C1-C20烷基取代的胺基;亞硝酸基(nitrile group);硝基(nitro group);羰基(carbonyl group);氰基(cyano group, -CN);具有取 , 代基的芳香胺基;磷氧(P=0)芳香基團;Si原子芳香基團;雜環基團。其 中,上述的R4與R5不可同時為氫原子。 前述的芳香基包含苯基(phenyl)、萘基(naphthyl)、聯苯基 (diphenyl)、蒽基(anthryl)、苯并菲基(pyrenyl)、菲基(phenanthryl) 與二苯并五環(fluorene)、或其他形式之多苯環取代基。前述的雜 環基團可為旅喊(pyrane)、》底洛淋(pyrroline)、咬味(furan)、苯并吱 口南(benzofuran)、嗟吩(thiophene)、笨并嗟吩(benzothiophene)、0比 t 咬(pyridine)、啥琳(quinoline)、異啥琳(isoquinoline)、β比嗓 (pyrazine)、痛咬(pyrimidine)、0比洛(pyrrole)、0比0坐(pyrazole)、口米 口坐(imidazole)、0引0朵(indole)、嗔ύ坐(thiazole)、異嘆嗤(isothiazole)、 0惡11 坐(oxazole)、異°惡峻(isoxazole)、苯并嗟嗤(benzothiazole)、苯并 °惡0坐(benzoxazole)、1,2,4-三 °惡嗤(l,2,4-triazole)、1,2,3-三 °惡唾 (1,2,3-triazole) 、1,2,3,4-四 °惡 °坐(tetraazole),與二氮菲 (phenanthroline),或其他形式之異核芳香環。 200909416 以下將敘明數種根據本實施例之具有氫化吲哚吖啶結構之共扼 化合物的較佳範例之結構及其形成方式,然而,本說明書之範圍應 以其後的專利範圍為準,而不應以下列範例為限。Page 7 200909416 wherein W~R5 may be the same or different, and R1 to R5 are independently selected from one of the following groups: a hydrogen atom; a halogen-substituted aryl group; a C1-C20 haloalkyl-substituted aryl group; C1 -C20 haloalkyl substituted arylalkyl; aryl substituted C1-C20 alkyl; C1-C20 alkyl (eg methyl, ethyl, butyl, cyclohexyl, etc.); C1-C20 alkoxy (alkoxy group); an amino group; an amine group substituted with an aryl group; an amine group substituted with a C1-C20 alkyl group; a nitrile group; a nitro group; a carbonyl group ); cyano group (-CN); aromatic amine group having a substituent; phosphorus oxygen (P = 0) aromatic group; Si atom aromatic group; heterocyclic group. Here, the above R4 and R5 are not simultaneously a hydrogen atom. The aforementioned aromatic group includes phenyl, naphthyl, diphenyl, anthryl, pyrenyl, phenanthryl and dibenzopentacyclic ( Fluorene), or other forms of polyphenyl ring substituents. The aforementioned heterocyclic group may be pyrane, pyrroline, furan, benzofuran, thiophene, benzothiophene. , 0 to t pyridine, quinoline, isoquinoline, pyrazine, pyrimidine, pyrrole, pyrazole, pyrazole Imidazole, 0 indole, thiazole, isothiazole, oxazole, isoxazole, benzopyrene (benzothiazole), benzoxazole, benzoxazole, 1,2,4-trioxalate (1,2,4-triazole), 1,2,3-three-degree sputum (1,2,3 -triazole), 1, 2, 3, 4-tetras, tetraazole, with phenanthroline, or other forms of heteronuclear aromatic rings. 200909416 The structure of a preferred example of the conjugated compound having a hydrogenated acridine structure according to the present embodiment and the manner of formation thereof will be described below. However, the scope of the specification should be determined by the scope of the following patent. It should not be limited to the following examples.
Example 1 具有氫化吲哚吖啶結構之共輛化合物之形成方法 首先,將化合物 F-01 (10 mmole),味D坐(carbazole, 10 mmole),碳酸 第9頁 200909416 鉀(lOOmmole) ’硫酸鈉(i〇〇mm〇ie)和銅粉(丨mm〇ie),置於反應瓶内, 加入靖基苯(20 mL) ’在迴流溫度下加熱攪拌24小時,反應完畢後,利用 減壓蒸餘除去硝基苯,剩餘的混合物利用水和二氣甲烷進行萃取,收集有 機層’鹽析除水後進行濃縮可得到化合物F_〇2,如Scheme 1所示。Example 1 Method for forming a compound compound having a hydrogenated acridine structure First, compound F-01 (10 mmole), taste D (carbazole, 10 mmole), carbonic acid page 9 200909416 potassium (100 mmole) 'sodium sulfate (i〇〇mm〇ie) and copper powder (丨mm〇ie), placed in the reaction flask, added Jingji benzene (20 mL) 'heated at reflux temperature for 24 hours, after the reaction is completed, removed by vacuum distillation Nitrobenzene, the remaining mixture is extracted with water and di-methane, and the organic layer is collected. [Salting out water and concentrating to obtain compound F_〇2, as shown in Scheme 1.
F-01 F-02F-01 F-02
Scheme 1Scheme 1
接著,將化合物F-02 (10 mmole),利用THF (50 mL)溶解於反應瓶内, 加入鋰試劑或格林那試劑(20mmole),在氮氣系統下反應18小時。於反應 結束後’加入氣化銨飽和水溶液中止反應,利用乙酸乙酯進行萃取,有機 層經由鹽析除水後,移除溶劑,加入醋酸(10mL)和濃鹽酸(1 mL),迴流 溫度下反應’如Scheme2所示。反應結束後利用碳酸納飽和水溶液中和醋 酸和鹽酸’當溶液到達弱鹼性時,進行抽氣過濾收集固體,再利用乙醇進 行再結晶,即可得到具有氫化吲哚吖啶結構之共軛化合物。Next, the compound F-02 (10 mmole) was dissolved in a reaction flask using THF (50 mL), and a lithium reagent or a Grinna reagent (20 mmole) was added thereto, and the mixture was reacted for 18 hours under a nitrogen atmosphere. After the end of the reaction, the reaction was stopped by adding a saturated aqueous solution of ammonium sulfate, and extraction was carried out with ethyl acetate. After the organic layer was separated by water, the solvent was removed, and acetic acid (10 mL) and concentrated hydrochloric acid (1 mL) were added at reflux temperature. The reaction is shown as Scheme2. After the reaction, the acetic acid and hydrochloric acid are neutralized by a saturated aqueous solution of sodium carbonate. When the solution reaches a weak alkalinity, the solid is collected by suction filtration, and then recrystallized by using ethanol to obtain a conjugated compound having a hydrogenated acridine structure. .
a.) R-MgBr or RLi, THF, 18h__ b_) HCl(aq),HOAc, reflux, lh, two steps 52 % F-02a.) R-MgBr or RLi, THF, 18h__ b_) HCl(aq), HOAc, reflux, lh, two steps 52 % F-02
R RR R
Scheme 2 第10頁 200909416Scheme 2 Page 10 200909416
Example 2 8.8- 雙-(4-特丁基苯)-8-氫化-,嗓-[3,2,1-(1中丫啶 8.8- Bis-(4-tert-butyl-phenyl)-8H-indol〇P,2,l-de]acridine (以下簡稱DPIA-®u)Example 2 8.8-bis-(4-tert-butylbenzene)-8-hydrogen-, 嗓-[3,2,1-(1 acridine 8.8- Bis-(4-tert-butyl-phenyl)-8H- Indol〇P,2,l-de]acridine (hereinafter referred to as DPIA-®u)
DPIA-fiu NMR (400 M Hz, CDC13): ^ 1.23(s, 18 H), 6.94(d, /=8.4 Hz, 4 H), 7.04-7.08(m, 3 H), 7.20(d, >8.4 Hz, 4 H), 7.29-7.38(m, 3 H), 7.5l(t, ^=8 Hz, 1 H), 7.91(d, ^=7.6 Hz, 1H), 8.10(t, /=7.2 Hz, 3 H) 13C NMR (100 M Hz, CDC13): ^ 31.3(CH3), 34.3(C), 56.3(C), 113.3(CH), 114.4(CH), 117.9(CH), 121.0(CH), 121.1(CH), 121.8(C), 122.1(CH), 122.6(CH), 124.5(CH), 126.1(CH), 126.3(CH), 126.8(C), 127.3(CH), 128.3(C), 129.7(CH), 132.0(CH), 132.5(C), 136.9(C), 137.6(C), 138.6(C), 143.3(C), 149.0(C). HRMS (El, m/z): calcd for C39H37N 519.2926, found 519.2913 (M+) Anal. Calcd. for C39H37N: C, 90.13; H, 7.18; N, 2.70 %. Found: C, 89.98; H, 7.09 ; N,2·66 %. (DPIA_®u 之紫外光吸 收與放光光譜圖請見第一圖)DPIA-fiu NMR (400 M Hz, CDC13): ^ 1.23 (s, 18 H), 6.94 (d, /=8.4 Hz, 4 H), 7.04-7.08 (m, 3 H), 7.20 (d, > 8.4 Hz, 4 H), 7.29-7.38 (m, 3 H), 7.5 l (t, ^=8 Hz, 1 H), 7.91 (d, ^=7.6 Hz, 1H), 8.10 (t, /= 7.2 Hz, 3 H) 13C NMR (100 M Hz, CDC13): ^ 31.3 (CH3), 34.3 (C), 56.3 (C), 113.3 (CH), 114.4 (CH), 117.9 (CH), 121.0 (CH) , 121.1(CH), 121.8(C), 122.1(CH), 122.6(CH), 124.5(CH), 126.1(CH), 126.3(CH), 126.8(C), 127.3(CH), 128.3(C) , 129.7 (CH), 132.0 (CH), 132.5 (C), 136.9 (C), 137.6 (C), 138.6 (C), 143.3 (C), 149.0 (C). HRMS (El, m/z): Calcd for C39H37N 519.2926, found 519.2913 (M+) Anal. Calcd. for C39H37N: C, 90.13; H, 7.18; N, 2.70 %. Found: C, 89.98; H, 7.09 ; N,2·66 %. (DPIA_® u The UV absorption and spectroscopy spectra are shown in the first figure)
Example 3 8.8- 雙-(4’-三苯基石夕苯-4-)-8-氫化弓卜朵-[3,2,l-de]吖啶 8.8- Bis-(4-triphenylsilanyl-phenyl)-8H-indolo[3,2,l-de]acricline (以下簡稱 DPIA-BS) 第11頁 200909416Example 3 8.8- bis-(4'-triphenyl oxabenzene-4-)-8-hydrogenated bud-[3,2,l-de]acridine 8.8- Bis-(4-triphenylsilanyl-phenyl)- 8H-indolo[3,2,l-de]acricline (hereinafter referred to as DPIA-BS) Page 11 200909416
!H NMR (600 μ Hz rn DPIA_BS 7.52-7.56(m, 13 H),7.96(^^¾ ,I.〇5-7.13(m,8 H),7‘33-7.44(m,22 H), for C67H49NSi2: C, 87 06 ’ h i:,也,2 印,8.14(t,戶8.0 取 4 H)·如此 Calcd. ’ 5·34; N,i.52%. Found: c,86.68; H,5.36; N, .° 之紫外光吸收與放光光譜圖請見第二圖)!H NMR (600 μ Hz rn DPIA_BS 7.52-7.56 (m, 13 H), 7.96 (^^3⁄4 , I.〇5-7.13 (m, 8 H), 7'33-7.44 (m, 22 H), For C67H49NSi2: C, 87 06 ' hi:, also, 2 prints, 8.14 (t, household 8.0 take 4 H) · So Calcd. ' 5·34; N, i.52%. Found: c,86.68; H, 5.36; N, .° UV absorption and emission spectrum, see the second figure)
Example 4 8.8- 雙-(4-溴苯基)-8-氫化弓丨啊321却丫咬 8.8- BiS-(4-br_-Phenyl)_8H_ind〇1〇[321_de_^^Example 4 8.8- bis-(4-bromophenyl)-8-hydrogenated 丨 321 but bite 8.8- BiS-(4-br_-Phenyl)_8H_ind〇1〇[321_de_^^
lU NMR (400 M Hz, CDC13): ^ 6.90(d, ^8.0 Hz, 4 H), 6.97(d, >8.0 Hz, 1 H), 7.00(d, ^=8.0 Hz, 1 H), 7.09(t, >7.2 Hz, 1 H), 7.30-7.41(m, 7 H), 7.53(t, ^=8.0 Hz, 1H), 7.93(d, ^8.0 Hz, 1 H), 8.07(d, /=8.0 Hz, 1 H), 8.1 l(d, ^8.0 Hz, 2 H). ,3C NMR (100 M Hz, CDC13): 56.4(C), 110.0(C), 113.6(CH), 114.4(CH), 118.6(CH), 120.9(C), 121.2(CH), 121.4(CH), 122.1(C), 122.4(CH), 122.9(CH), 125.8(CHX 126.5(CH), 126.6(C), 126.8(C), 127.9(CH), 131.0(CH, C), 131.5(CH), 131.8(CH), 136.8(C), 137.3(C), 138.6(C), 144.7(C) HRMS (El, m/z): calcd for CsiHwBqN 562.9884 found 562.9888 (M )。 第12頁 200909416lU NMR (400 M Hz, CDC13): ^ 6.90 (d, ^8.0 Hz, 4 H), 6.97 (d, > 8.0 Hz, 1 H), 7.00 (d, ^=8.0 Hz, 1 H), 7.09 (t, >7.2 Hz, 1 H), 7.30-7.41 (m, 7 H), 7.53 (t, ^=8.0 Hz, 1H), 7.93 (d, ^8.0 Hz, 1 H), 8.07 (d, /=8.0 Hz, 1 H), 8.1 l(d, ^8.0 Hz, 2 H). , 3C NMR (100 M Hz, CDC13): 56.4(C), 110.0(C), 113.6(CH), 114.4( CH), 118.6(CH), 120.9(C), 121.2(CH), 121.4(CH), 122.1(C), 122.4(CH), 122.9(CH), 125.8(CHX 126.5(CH), 126.6(C) , 126.8(C), 127.9(CH), 131.0(CH, C), 131.5(CH), 131.8(CH), 136.8(C), 137.3(C), 138.6(C), 144.7(C) HRMS (El) , m/z): calcd for CsiHwBqN 562.9884 found 562.9888 (M ). Page 12 200909416
Example 5 8.8- 雙-(4'-三苯基矽聯苯·4-)-8-氩化冽卜朵-[3,2,l-de]吖啶 8.8- Bis-(4,-triphenylsilanyl-biphenyl-4-yl)-8H-indolo[3,2,1 -de]acridine (以下間 稱 DPIA-BSP)Example 5 8.8- bis-(4'-triphenyl-biphenyl-4-)-8-argon oxime-[3,2,l-de]acridine 8.8- Bis-(4,-triphenylsilanyl- Biphenyl-4-yl)-8H-indolo[3,2,1 -de]acridine (hereinafter referred to as DPIA-BSP)
!H NMR (400 M Hz, CDCls): ^ 7.12-7.22(m, 7 H), 7.33-7.65(m, 46 H), 7.97(d, ^8.0 Hz, 1 H), 7.09(t, ^7.2 Hz, 1 H), 8.11-8.19(m, 3 H). 13C NMR (100 M Hz, CDC13):亡 56.7(C), 113.5(CH), 114.5(CH), 118.3(CH), 121.2(CH), 121.3(CH), 122.1(C), 122.3(CH), 122.8(CH), 126.2(CH), 126.4(CH), 126.5(CH), 126.8(CH), 127.7(CH, C), 127.9(CH), 128.0(C), 129.6(CH), 130.6(CH), 131.9(CH), 132.0(C), 133.0(C), 134.2(C), 136.4(CH), 136.8(CH), 137.0(C), 137.6(C), 138.6(C), 138.9(C), 141.5(C), 145.5(C). HRMS (FAB, m/z): calcd for C79H57Si2N 1075.4030 found 1076.4111 (M++1) Anal. Calcd. for C79H57Si2N: C, 88.14; H, 5.34; N, 1.30 %· Found: C, 88.03; H, 5.21 ; N, 1.25 %。(DPIA-BSP之紫外光吸收與放光光譜圖請見第三圖) 根據本實施例,上述具有氫化吲哚吖啶結構之共軛化合物具有良好 的熱穩定性與高的三重態能階差等優點。因此,在上述具有氫化吲哚吖啶 第13頁 200909416 結構之共軛化合物應用於有機電子元件時,除了高的熱穩定性可使有 機電子元件的壽命增加之外’當上述具有氫化吲哚吖啶結構之共軛化合 物應用於有機發光元件時,更可進一步補足現有的一般欲應用於主發光 體材料所達不到的能階差而且通用各類的發光材料,如銀(lr)、翻(Pt)、鐵(〇s) 等金屬錯合物的磷光材料之添加,以調整出各種實際所需波長之發光層。 於本實施例中’上述具有氫化吲哚吖啶結構之共軛化合物可用 來應用於有機電激發光(electroluminescence )元件與/或磷光 (phosphorescence)元件中,特別是應用於有機電激發光元件與/ 或磷光元件中的主發光體材料(host material)、或是電洞傳導材料 (hole transport material)。此外,上述之具有氫化吲哚吖啶結構 之共輛化合物亦可應用於其他有機電子元件(〇rganic electronic devices)之電洞傳導材料(hole transport material)。上述之有機電 子元件可以是有機發光元件、有機太陽能電池、有機薄膜電晶體、 有機光導體、或是其他習知該項技藝者所熟悉之有機半導體元件。 根據本發明之第二實施例揭露一種有機發光元件。一般而 言,有機發光元件發光的顏色主要決定於元件内具有螢光特性的 有機材料’因此有機發光元件可由在主發光體(h〇st)中混入少量的 回發光效率客發光體(guest)來提兩載子的再結合效率,這些客發 光體具有比主發光體小的能隙、高的發光效率以及比主發光體短 的再結合生命期等特性’因此將主發光體的激子(excit〇n)藉由能量 轉移的過程轉移至客發光體上進行快速且有效率的再結合。這除 第14頁 200909416 了提鬲發光的效率外,也可使發光的顏色橫跨整個可見光區。 客發光體(guest emitter)常以共蒸錢(co_evap〇rati〇n)或分散 (diSperSi〇n)方式與主發光體共同使用,並以能量轉移(energy transfer)或載子捕獲(carder trap)方式接受來自被激發的主發光體 倉b量,而導致不同顏色(re(j,green,biue)的產生且增強元件的發 光效率。除了上述之螢光材料(Flu〇reseence)客發光體,新的發展 為鱗光材料(Ph〇Sph〇rescence)的研究。當有機分子受到激發後會有 /4的激發電子形成非對稱自旋的單重態3加6)形式,並以 蟹光方式釋放出能量’但有3/4的激態電子會形成對稱自旋的三重 態(triplet state) ’並以非放射性的磷光釋出能量而大大的損失效 能’且降低發光效率。目前而言,能夠將激態電子的三重態以磷 光方式發光的材料均是有機金屬化合物,其中心金屬均是過渡金 屬’如:餓(Os)、銥(Ir)、鉑(Pt)、銪(Eu)、釕(Ru)等’而其配位基 則是含氮之雜環化合物。 根據本實施例,上述之有機發光元件包含一對電極與至少一 有機層位於上述的電極之間。其中上述的至少一有機層包括一發 光層,且上述的有機層中至少有一層包含一具有氫化吲哚吖啶結構 之共扼化合物,上述具有氫化吲哚吖啶結構之共軛化合物之一般結構 如下: 第15頁 200909416 R2!H NMR (400 M Hz, CDCls): ^ 7.12-7.22 (m, 7 H), 7.33-7.65 (m, 46 H), 7.97 (d, ^8.0 Hz, 1 H), 7.09 (t, ^ 7.2 Hz, 1 H), 8.11-8.19(m, 3 H). 13C NMR (100 M Hz, CDC13): 56.7(C), 113.5(CH), 114.5(CH), 118.3(CH), 121.2(CH) ), 121.3(CH), 122.1(C), 122.3(CH), 122.8(CH), 126.2(CH), 126.4(CH), 126.5(CH), 126.8(CH), 127.7(CH, C), 127.9 (CH), 128.0(C), 129.6(CH), 130.6(CH), 131.9(CH), 132.0(C), 133.0(C), 134.2(C), 136.4(CH), 136.8(CH), 137.0 (C), 137.6(C), 138.6(C), 138.9(C), 141.5(C), 145.5(C). HRMS (FAB, m/z): calcd for C79H57Si2N 1075.4030 found 1076.4111 (M++1) Anal. Calcd. for C79H57Si2N: C, 88.14; H, 5.34; N, 1.30 %· Found: C, 88.03; H, 5.21; N, 1.25 %. (See the third diagram for the ultraviolet absorption and luminescence spectrum of DPIA-BSP.) According to the present embodiment, the above conjugated compound having a hydrogenated acridine structure has good thermal stability and high triplet energy level difference. Etc. Therefore, when the above conjugated compound having a structure of hydrogenated acridine on page 13 200909416 is applied to an organic electronic component, in addition to high thermal stability, the life of the organic electronic component can be increased. When the conjugated compound of the pyridine structure is applied to the organic light-emitting element, it can further complement the existing energy level materials which are generally not applied to the main illuminant material, and various types of luminescent materials, such as silver (lr), The addition of a phosphorescent material of a metal complex such as (Pt) or iron (〇s) to adjust the light-emitting layers of various practically desired wavelengths. In the present embodiment, the above conjugated compound having a hydrogenated acridine structure can be used for an organic electroluminescence element and/or a phosphorescence element, particularly for an organic electroluminescence element. / or the host material in the phosphor element, or the hole transport material. Further, the above-mentioned compound compound having a hydrogenated acridine structure can also be applied to a hole transport material of other organic electronic devices. The above organic electronic component may be an organic light emitting device, an organic solar cell, an organic thin film transistor, an organic photoconductor, or other organic semiconductor device familiar to those skilled in the art. An organic light emitting element according to a second embodiment of the present invention is disclosed. In general, the color of the light emitted by the organic light-emitting element is mainly determined by the organic material having the fluorescent property in the element. Therefore, the organic light-emitting element can be mixed with a small amount of light-emitting efficiency in the main light-emitting body (guest). To improve the recombination efficiency of the two carriers, these guest emitters have a smaller energy gap than the main emitter, a higher luminous efficiency, and a shorter recombination lifetime than the main emitter. Therefore, the exciton of the main emitter is (excit〇n) Transfer to the guest illuminant by the process of energy transfer for rapid and efficient recombination. In addition to the efficiency of the illuminating light on page 14, 200909416, the color of the illuminating light can also span the entire visible light region. The guest emitter is often used in conjunction with the main illuminator in the form of co-evaporation (co_evap〇rati〇n) or dispersion (diSperSi〇n), with energy transfer or carder trap. The mode accepts the amount of the main illuminant bin b from being excited, resulting in the generation of different colors (re(j, green, biue) and enhancing the luminous efficiency of the element. In addition to the above-mentioned fluorescent material (Flu〇reseence) guest illuminant, The new development is the study of Phosphorus materials (Ph〇Sph〇rescence). When the organic molecules are excited, there will be /4 excited electrons forming asymmetrical spins of singlet 3 + 6) form, and released by crab light. The energy 'but 3/4 of the excited electrons will form a symmetrical spin triplet state 'and release energy with non-radioactive phosphorescence and greatly lose performance' and reduce luminous efficiency. At present, materials capable of emitting phosphoric light in the triplet state of excimer electrons are organometallic compounds, and the central metal is a transition metal such as: Os, Ir, Platinum (Pt), (Eu), ruthenium (Ru), etc. and its ligand is a nitrogen-containing heterocyclic compound. According to this embodiment, the above organic light-emitting element includes a pair of electrodes and at least one organic layer between the electrodes. Wherein at least one of the organic layers comprises a light-emitting layer, and at least one of the organic layers comprises a ruthenium compound having a hydrogenated acridine structure, and the general structure of the above-mentioned conjugated compound having a hydrogenated acridine structure As follows: Page 15 200909416 R2
群中之一者:氫原子;鹵素取代的芳香基;C1-C20鹵烧基取代的 芳香基;C1-C20鹵统基取代的芳香燒基;具芳香基取代的匚1 _c2〇 烧基’ C1-C20烧基(例如:甲基、乙基、丁基、環己基等);ci_c2〇 烧氧基(alkoxy group);胺基(amino group);具芳香基取代的胺 基;具C1-C20烧基取代的胺基;亞靖酸基(nitrile group);石肖基(nitro group);羰基(carbonyl group);氰基(cyano group,-CN);具有取 代基的芳香胺基;磷氧(P=0)芳香基團;Si原子芳香基團;雜環基團。 前述的芳香基包含苯基(phenyl)、萘基(naphthyl)、聯苯基 (diphenyl)、蒽基(anthryl)、苯并菲基(pyrenyl)、菲基(phenanthryl) 與二笨并五環(fluorene)、或其他形式之多苯環取代基。前述的雜 環基團可為α底°南(pyrane)、略嘻琳(pyrroline)、吱嚼(furan)、苯并咬 喃(benzofuran)、11塞吩(thiophene)、苯并 °塞吩(benzothiophene)、口比 啶(pyridine)、喹啉(quinoline)、異喹啉(isoquinoline)、吡嗪 (pyrazine)、鳴咬(pyrimidine)、。比洛(pyrrole)、efct^(pyraz〇le)、哺 第16頁 200909416 0坐(11111(132〇16)、1*引'1朵(111<1〇16)、嘆11坐(111132〇16)、異嗟吐(18〇1:111&2〇16)、 0惡0坐(oxazole)、異 °惡嗤(isoxazole)、苯并η塞嗤(benzothiazole)、苯并 4i(benzoxazole)、l,2,4-Si,(l,2,4-triazole)、l,2,3-St, (1,2,3-triazole) 1,2,3,4-四0惡唾(tetraazole),與二氮菲 (phenanthroline),或其他形式之異核芳香環。 . 在根據本實施例之一較佳範例中,上述具有氫化吲哚吖啶結構 之共軛化合物可以是應用於上述有機發光元件中之發光層。在根據 f 本實施例之另一較佳範例中,上述具有氫化吲哚吖啶結構之共軛化 合物可以是應用於上述有機發光元件中之發光層之一主體材料。上 述之發光層可以更包含一客發光體材料,且前述之客發光體材料 包含一過渡金屬錯合物。上述之過渡金屬錯合物可以是選自下列 族群之一者:銥(Ir)、鉑(Pt)、锇(〇s)、銅(Cu)、铑(Rh)、銪(Eu)、釕(Ru) 等。上述之客發光體材料可以是藍色、綠色、紅色等顏色之磷光 材料。在根據本實施例之另一較佳範例中,上述具有氫化吲哚吖啶 I 結構之共軛化合物可以是應用於上述有機發光元件中之電洞傳導 層。在根據本實施例之另一較佳範例中,上述具有氫化吲哚吖啶結 構之共軛化合物可以是應用於上述有機發光元件中之電子傳導層。 形成有機發光元件的一般流程 取已蝕刻電路圖的ITO玻璃,加入中性清潔劑··去離子水=1 :50的 清洗液,置於超音波震盪器中震盪5分鐘,接著以軟毛刷刷洗玻璃,再依 序將玻璃置於50 mL的去離子水、電子級丙酮中震盪5分鐘,最後以氮氣 200909416 吹乾。將清潔後的IT〇玻璃放置在紫外光_臭氧機内,時間奴為5分鐘, 取出後蚊在基板上(ΙΤ〇 _下),放人驗齡抽真空,直到腔體的真 空度達到—可進行蒸鍍_之步驟。驗祕之條件為有機物鑛 膜速率控制在1 2 A/s之間’將所期望的有機膜依序蒸鍵,而金屬麵之 ,鎂銀共蒸鍍之金屬膜厚為 速率鎮為5 A/s ’銀為0.5 A/ s,鎮:銀=1〇 55 nm,最後再鑛上-層1()〇咖的銀作為保護層。如果金屬選擇的是氣化 纖系統’首先必須以速率為Oj A/s蒸錄氣化鐘,其膜厚控制為i腿, 接著再鍍上-層100 nm的鋁作為保護層。於鍍膜期間,元件之旋轉速率為 20 rpm ’蒸騰束後須等待20分鐘讓金屬電極降溫,才可將腔體回充氣氣 使之回復常壓。 另一方面’ OLED元件製備完成後,藉由Hitach F_ 45〇〇 spectra scan spectrometer量測元件的電激螢光頻譜(EL spectra)與αΕ 座標圖(CIE coordination),此外’藉由 Keithley 24〇〇 pr〇grammable voltage-current source 量測元件的電流(current)、電壓(v〇ltage ) 與亮度(brightness)等性質。上述之量測儀器皆在一大氣壓下室 溫操作(約20°C )。One of the group: a hydrogen atom; a halogen-substituted aromatic group; a C1-C20 halogen-substituted aromatic group; a C1-C20 halogen-substituted aromatic alkyl group; an aromatic-substituted 匚1 _c2 fluorene group C1-C20 alkyl (for example: methyl, ethyl, butyl, cyclohexyl, etc.); ci_c2 alkoxy group; amino group; amine group substituted with an aryl group; C20 alkyl-substituted amine group; nitrile group; nitro group; carbonyl group; cyano group (-CN); aromatic amine group having a substituent; phosphorus oxygen P = 0) aromatic group; Si atom aromatic group; heterocyclic group. The aforementioned aromatic group includes phenyl, naphthyl, diphenyl, anthryl, pyrenyl, phenanthryl and di-p-pentacene ( Fluorene), or other forms of polyphenyl ring substituents. The aforementioned heterocyclic group may be α-pyrane, pyrroline, furan, benzofuran, 11 thiophene, benzoheptene ( Benzothiophene), pyridine, quinoline, isoquinoline, pyrazine, pyrimidine. Pyrol (pyrrole), efct^(pyraz〇le), feeding page 16 200909416 0 sitting (11111 (132〇16), 1* cited '1 flower (111<1〇16), sigh 11 sitting (111132〇16 ), 嗟 嗟 (18〇1:111 & 2〇16), 0ox 0 oxazole, isoxazole, benzothiazole, benzoxazole, l , 2,4-Si, (l,2,4-triazole), 1,2,3-St, (1,2,3-triazole) 1,2,3,4-tetraoxatetrazole With phenanthroline, or other forms of heteronuclear aromatic rings. In a preferred embodiment according to this embodiment, the above conjugated compound having a hydrogenated acridine structure may be applied to the above organic light-emitting element. In another preferred embodiment of the present embodiment, the conjugated compound having a hydrogenated acridine structure may be one of the host materials of the light-emitting layer applied to the above organic light-emitting element. The luminescent layer may further comprise a guest illuminant material, and the foregoing guest illuminant material comprises a transition metal complex. The transition metal complex may be one selected from the group consisting of铱 (Ir), platinum (Pt), 锇 (〇 s), copper (Cu), 铑 (Rh), 铕 (Eu), 钌 (Ru), etc. The above-mentioned guest illuminant material may be blue, green, A phosphorescent material of a red color, etc. In another preferred embodiment according to this embodiment, the above conjugated compound having a hydrogenated acridine I structure may be a hole conducting layer applied to the above organic light emitting device. In another preferred embodiment of the present embodiment, the conjugated compound having a hydrogenated acridine structure may be an electron-conducting layer applied to the organic light-emitting device. The general procedure for forming an organic light-emitting device is an ITO having an etched circuit pattern. Glass, add neutral detergent · deionized water = 1:50 cleaning solution, shake in a ultrasonic oscillator for 5 minutes, then brush the glass with a soft brush, then place the glass in 50 mL deionized The water and electronic grade acetone were shaken for 5 minutes, and finally dried with nitrogen 200909416. The cleaned IT glass was placed in the ultraviolet light _ ozone machine, the time slave was 5 minutes, and the mosquito was taken out on the substrate (ΙΤ〇_下) Put the tester down and vacuum until The degree of vacuum of the body reaches - the step of evaporation can be carried out. The condition of the test is that the rate of the organic mineral film is controlled between 12 A / s 'the desired organic film is sequentially steamed, while the metal surface, magnesium The metal film thickness of the silver co-evaporation is 5 A/s for the rate town, 0.5 A/s for the silver, and the town: silver = 1 〇 55 nm. Finally, the silver of the upper layer 1 () 〇 coffee is used as a protective layer. If the metal is selected to be a gasification fiber system, the vaporization clock must first be vaporized at a rate of Oj A/s, the film thickness of which is controlled to i legs, followed by a layer of 100 nm aluminum as a protective layer. During the coating, the rotation rate of the component is 20 rpm. After the transpiration beam, it is necessary to wait for 20 minutes for the metal electrode to cool down before returning the cavity to the normal pressure. On the other hand, after the preparation of the OLED element is completed, the electro-spectral fluorescence spectrum (EL spectra) and the αΕ coordinate map (CIE coordination) of the measuring element are measured by the Hitach F_45〇〇spectra scan spectrometer, and 'by Keithley 24〇〇 Pr〇grammable voltage-current source measures the current (current), voltage (v〇ltage) and brightness (brightness) of a component. All of the above measuring instruments are operated at room temperature (about 20 ° C) under atmospheric pressure.
Example 12 藉由上述形成有機發光元件的一般流程,以DPIA-©u、 DPIA-BS、DPIA-Br、以及DPIA-BSP為主發光體材料,分別摻雜藍色破光 材料以形成OLED元件,前述摻雜藍色磷光材料如下: 第18頁 200909416Example 12, by using the above-mentioned general procedure for forming an organic light-emitting element, using DPIA-u, DPIA-BS, DPIA-Br, and DPIA-BSP as the main illuminant materials, respectively doping blue light-breaking materials to form OLED elements, The aforementioned doped blue phosphorescent material is as follows: Page 18 200909416
上述元件之個別元件結構如下: 元件 A: NPB(30 nm)/DPIA-®u:6 % FIrpytz(30 nm)/BCP(10 nm)/Alq(30 nm). 元件 B: TCTA(30 nm)/DPIA-Bu:6 % FIrpytz(30 nm)/BCP(10 nm)/Alq(30 nm). 元件 C: TCTA(30 nm)/DPIA-BS:6 % FIrpytz(30 nm)/BCP(10 nm)/Alq(30 nm) 上述元件A〜C之光學性質與效率量測結果如下表1所示。 表1 : 元 件 啟動 電壓 (V) 最大外部 量子效率 (%, V) 亮度(於 100 mA/m2) (cd/m2) 電流效率 (cd/A,V) 最大效率 (lm/W, V) CIE座標 (x,y) at 10V A B C 3.9 5.9 4.8 7.45, 6.5 7.76, 9.5 2.04, 9.0 5930,10.4 6171, 13.1 2099, 11.9 12.53.6.5 13.45.9.5 3.67, 9.0 6.06, 6.5 4.52, 9.0 1.28,9.0 0.15, 0.24 0.15,0.25 0.19, 0.29 從表-的麟可;t aj轉本說明書的具有氫彳卜縣π丫咬結構之共耗 化合物可作為魏主騎料,並應驗有機發光二鋪上。瞒參考上表i ,、第圖利顯看出,上述的元件A〜元件c可放出藍色的鱗光,且上 述的元件A〜元件c具有高亮度、高電流效率及優異的αΕ座標。 於本實施例中’上述具有氫化,朵°丫咬結構之共輛化合物可用來 第19頁 200909416 應用於有機發光(electroluminescence )元件中的主發光體材料 (h〇St material)'或是電洞傳導材料(h〇le transp〇rt咖如⑷)。另 一方面,上述具有氫化吲哚吖啶結構之共軛化合物更具有電洞傳導之 特性’所以’ Φ可應用於有機發光元件,甚至其他有機電子元件 之電洞傳導材料。 根據本說明t ’由於上述具有氫化,朵啊結構之共軛化合物具 有南度熱穩定性之優點,因此,當將上述具有氫化十^丫咬結構之The individual components of the above components are structured as follows: Component A: NPB (30 nm) / DPIA-®u: 6 % FIrpytz (30 nm) / BCP (10 nm) / Alq (30 nm). Component B: TCTA (30 nm) /DPIA-Bu: 6 % FIrpytz (30 nm) / BCP (10 nm) / Alq (30 nm). Component C: TCTA (30 nm) / DPIA-BS: 6 % FIrpytz (30 nm) / BCP (10 nm ) / Alq (30 nm) The optical properties and efficiency measurement results of the above elements A to C are shown in Table 1 below. Table 1: Component startup voltage (V) Maximum external quantum efficiency (%, V) Brightness (at 100 mA/m2) (cd/m2) Current efficiency (cd/A, V) Maximum efficiency (lm/W, V) CIE Coordinates (x, y) at 10V ABC 3.9 5.9 4.8 7.45, 6.5 7.76, 9.5 2.04, 9.0 5930, 10.4 6171, 13.1 2099, 11.9 12.53.6.5 13.45.9.5 3.67, 9.0 6.06, 6.5 4.52, 9.0 1.28, 9.0 0.15, 0.24 0.15, 0.25 0.19, 0.29 From the table - Lin Ke; t aj to this specification of the co-consumption compound with hydrogen oxime π 丫 bite structure can be used as Wei main riding material, and the organic light-emitting two shop. Referring to the above table i, the figure shows that the above-mentioned elements A to c can emit blue scale light, and the above-mentioned elements A to c have high luminance, high current efficiency, and excellent α Ε coordinates. In the present embodiment, 'the above-mentioned compound having a hydrogenation, a bite-biting structure can be used for the main illuminant material (h〇St material) used in an organic luminescence element on page 19 200909416 or a hole. Conductive material (h〇le transp〇rt coffee (4)). On the other hand, the above conjugated compound having a hydrogenated acridine structure has a property of hole conduction so that Φ can be applied to an organic light-emitting element or even a hole-conducting material of other organic electronic elements. According to the present specification t ′, since the above-mentioned conjugated compound having a hydrogenation structure has a souther thermal stability, the above-mentioned hydrogenated ruthenium structure is used.
共耗化合物應餘有機電子元件巾的時候,將可有效延長有機電子 元件之使用壽命m由於上述具有氫化餘付結構之共 輛化合物具高的三重驗縣之魏,所以,#上述具錢化餘丫咬 結構之共減合物應祕有機發光元件時,可進—步補足現今應用於 藍色填光之主騎料所達不到的能階差,且通用各類_紐料如離)、 峨、鐵㈣等金屬錯合物的材料,進而達到符合經濟上的效益與產 業上的利用性之功效。 顯然地,依照上面體系中的 斤甲的描述,本發明可能有許多的修正 與差異。因此需要在其附加的 刃權和要求項之範圍内加以理解,除 了上述詳細的描述外,本發明還可以廣泛地在其他的體系中施 行。上述僅為本發明之較佳體系而已’並非用以限定本發明之申 請專利範圍;凡其它未脫離本發 不發明所揭不之精神下所完成的等效 改變或修飾,均應包含在下述中請專利範圍内。 第20頁 200909416 【圖式簡單說明】 第一圖係DPIA-氾u之紫外光吸收與放光光譜圖; 第二圖係DPIA_BS之紫外光吸收與放光光譜圖; 第三圖係DPIA-BSP之紫外光吸收與放光光譜圖;以及 • 第四圖係根據本說明書所形成之元件A至元件C之放光光譜圖。 « 【主要元件符號說明】When the co-consumed compound should be left with the organic electronic component towel, the service life of the organic electronic component can be effectively extended. m. Because the above-mentioned compound having the hydrogenation residual structure has a high triple test of the county, therefore, the above-mentioned money is When the co-ablative structure of the Yu-Bian structure should be secretive to the organic light-emitting element, it can be further complemented by the energy level difference that can not be achieved in the current blue-filled main riding material, and the general-purpose various types of materials ), materials such as bismuth, iron (four) and other metal complexes, in order to achieve economic benefits and industrial use. Obviously, the invention may have many modifications and differences in accordance with the description of the shackles in the above system. It is therefore necessary to understand within the scope of the appended claims and claims, and the invention may be practiced in other systems in addition to the detailed description above. The above is only the preferred system of the present invention and is not intended to limit the scope of the invention; any equivalent changes or modifications made without departing from the spirit of the invention should be included in the following. Please refer to the patent scope. Page 20 200909416 [Simple description of the diagram] The first picture is the UVA absorption and emission spectrum of DPIA-U-U; the second picture is the UV absorption and emission spectrum of DPIA_BS; The third picture is DPIA-BSP Ultraviolet light absorption and luminescence spectra; and • The fourth diagram is a luminescence spectrum of component A to component C formed according to the present specification. « [Main component symbol description]
第21頁Page 21
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