KR100958920B1 - 금속산화물 나노볼층을 구비한 염료감응형 태양전지 및 이의 제조방법 - Google Patents
금속산화물 나노볼층을 구비한 염료감응형 태양전지 및 이의 제조방법 Download PDFInfo
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- KR100958920B1 KR100958920B1 KR1020080098683A KR20080098683A KR100958920B1 KR 100958920 B1 KR100958920 B1 KR 100958920B1 KR 1020080098683 A KR1020080098683 A KR 1020080098683A KR 20080098683 A KR20080098683 A KR 20080098683A KR 100958920 B1 KR100958920 B1 KR 100958920B1
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- Prior art keywords
- metal oxide
- dye
- solar cell
- sensitized solar
- titanium oxide
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims description 139
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2027—Light-sensitive devices comprising an oxide semiconductor electrode
- H01G9/2031—Light-sensitive devices comprising an oxide semiconductor electrode comprising titanium oxide, e.g. TiO2
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F10/00—Individual photovoltaic cells, e.g. solar cells
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10F—INORGANIC SEMICONDUCTOR DEVICES SENSITIVE TO INFRARED RADIATION, LIGHT, ELECTROMAGNETIC RADIATION OF SHORTER WAVELENGTH OR CORPUSCULAR RADIATION
- H10F71/00—Manufacture or treatment of devices covered by this subclass
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2059—Light-sensitive devices comprising an organic dye as the active light absorbing material, e.g. adsorbed on an electrode or dissolved in solution
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S977/00—Nanotechnology
- Y10S977/70—Nanostructure
- Y10S977/811—Of specified metal oxide composition, e.g. conducting or semiconducting compositions such as ITO, ZnOx
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Hybrid Cells (AREA)
- Photovoltaic Devices (AREA)
Abstract
Description
Claims (13)
- 반도체 전극 및 상대 전극을 준비하는 단계와, 상기 반도체 전극 및 상대 전극 사이에 전해질을 주입하는 단계를 포함하는 염료감응형 태양전지의 제조방법에 있어서,상기 반도체 전극 준비 단계는,유기 바인더를 첨가하지 않고 금속산화물 나노입자를 유기용매에 0.01 내지 5 중량% 농도로 균일하게 분산시켜 금속산화물 분산액을 제조하는 단계;상기 금속산화물 분산액을 전도성 기판 위에 정전분사(electrospray)하여, 금속산화물 나노입자가 응집된 직경 50 내지 3000 ㎚ 및 비표면적 70 내지 300 ㎡/g의 메조기공성 나노볼을 형성시키는 단계;상기 금속산화물 나노볼이 적층된 기판을 50 내지 200 ℃에서 100 ㎠ 당 0.1 내지 25 톤의 열압착률로 열압착한 후에 열처리하는 단계; 및상기 열처리된 금속산화물 나노볼 층에 염료를 흡착시키는 단계를 포함하는 염료감응형 태양전지의 제조 방법.
- 제1항에 있어서,상기 분산액은 금속산화물 나노입자를 마이크로 비드밀에 의해 균일하게 분산시켜 제조하는 것을 특징으로 하는 염료감응형 태양전지의 제조방법.
- 제1항에 있어서,상기 유기용매는 에탄올보다 유전상수가 작으면서 비점(boiling point)이 80 내지 150 ℃인 용매를 25 내지 75 중량%로 함유한 에탄올 혼합용매인 것을 특징으로 하는 염료감응형 태양전지의 제조방법.
- 제3항에 있어서,상기 에탄올보다 유전상수가 작으면서 비점이 80 내지 150 ℃인 용매는 부탄올인 것을 특징으로 하는 염료감응형 태양전지의 제조방법.
- 제1항에 있어서,상기 정전분사에 사용되는 금속산화물 분산액의 농도는 0.01 내지 3 중량%인 것을 특징으로 하는 염료감응형 태양전지의 제조방법.
- 제1항에 있어서,상기 금속산화물 나노입자는 직경이 1 내지 50 ㎚이며, 길이 대비 직경(aspect ratio)이 1 내지 100 이고, 10 내지 300 ㎡/g의 비표면적을 지닌 금속산화물의 나노입자, 메조기공성 나노입자, 속이 빈 나노입자, 나노로드, 나노튜브, 나노섬유 또는 이들의 혼합물을 사용하는 것을 특징으로 하는 염료감응형 태양전지의 제조 방법.
- 제1항에 있어서,상기 금속산화물 나노입자는 산화티타늄, 산화아연, 산화주석, 산화니오븀, 산화텅스텐, 산화스트론튬, 산화지르코늄 및 이들의 혼합물로 이루어진 군으로부터 선택되는 것을 특징으로 하는 염료감응형 태양전지의 제조 방법.
- 제1항에 있어서,상기 금속산화물 나노입자는 아나타제(anatase)형 산화티타늄 나노입자이고, 상기 메조기공성 금속산화물 나노볼 층을 열압착 및 열처리한 후에 루타일(rutile)형 산화티타늄층을 더 코팅시키는 것을 특징으로 하는 염료감응형 태양전지의 제조 방법.
- 제1항에 있어서,상기 전도성 기판은 전도성 유리기판 또는 금속기판이며, 상기 열처리는 400 내지 700 ℃ 에서 이루어지는 것을 특징으로 하는 염료감응형 태양전지의 제조 방법.
- 제1항에 있어서,상기 전도성 기판은 투명 전도성 플라스틱 기판이며, 상기 열처리는 100 내지 250 ℃ 에서 이루어지는 것을 특징으로 하는 염료감응형 태양전지의 제조 방법.
- 제1항에 있어서,상기 전해질은 액체 전해질, 겔형 전해질, 또는 고체 전해질인 것을 특징으로 하는 염료감응형 태양전지의 제조방법.
- 제1항에 있어서,상기 금속산화물 나노볼 층의 기공도(porosity)는 70 내지 90 %인 것을 특징으로 하는 염료감응형 태양전지의 제조방법.
- 제1항 내지 제12항 중 어느 한 항에 따르는 방법으로 제조된 염료감응형 태양전지.
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