KR20200040517A - 유-무기 복합 태양전지의 정공수송층 형성용 조성물, 유-무기 복합 태양전지 및 유-무기 복합 태양전지의 제조방법 - Google Patents
유-무기 복합 태양전지의 정공수송층 형성용 조성물, 유-무기 복합 태양전지 및 유-무기 복합 태양전지의 제조방법 Download PDFInfo
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- H10K30/00—Organic devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation
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Abstract
Description
도 3 및 도 4는 참고예 1에 따라 CuSCN과 바나듐 산화물 전구체의 CT(charge transfer) 착체 형성에 따른 색흡수를 나타낸 도면이다.
도 5 내지 도 7은 각각 실험예 1, 비교예 1 및 비교예 2에서 제조된 소자의 각 층들의 에너지 관계를 나타낸 모식도이다.
도 8은 실험예 1, 2 및 비교예 1, 2의 소자의 전압에 따른 전류밀도를 나타낸 그래프이다.
도 9 및 도 10은 각각 실험예 3 및 비교예 3에서 제조된 소자의 각 층들의 에너지 관계를 나타낸 모식도이다.
도 11은 실험예 3 및 비교예 3의 소자의 전압에 따른 전류밀도를 나타낸 그래프이다.
단락전류 (Jsc) (mA/cm2) |
개방전압 (Voc) (V) |
충진률 (FF) (%) |
효율(η) (%) |
|
비교예 3 | 18.1 | 1.04 | 57.3 | 10.8 |
실험예 3 | 20.4 | 1.03 | 68.7 | 14.4 |
20: 광흡수층
30: 정공수송층
40: 제2 전극
50: 전자수송층
Claims (16)
- Cu계 정공수송물질; 및 바나듐 산화물 전구체, 몰리브덴 산화물 전구체 및 텅스텐 산화물 전구체 중 적어도 하나의 금속산화물 전구체를 포함하는 유-무기 복합 태양전지용 정공수송층 형성용 조성물.
- 청구항 1에 있어서, 상기 금속산화물 전구체의 함량은 상기 Cu계 정공수송물질 100 중량부 대비 1 중량부 내지 60 중량부인 것인 유-무기 복합 태양전지용 정공수송층 형성용 조성물.
- 청구항 1에 있어서, 상기 Cu계 정공수송물질은 CuSCN, Cu 할로겐화물 및 Cu 첨가 산화물 중에서 선택되는 것을 포함하는 것인 유-무기 복합 태양전지용 정공수송층 형성용 조성물.
- 청구항 3에 있어서, 상기 Cu계 정공수송물질은 CuSCN, CuI, CuBr, 및 Cu:NiO (Cu doped NiO) 중에서 선택되는 것을 포함하는 것인 유-무기 복합 태양전지용 정공수송층 형성용 조성물.
- 청구항 1에 있어서, 상기 금속산화물 전구체는 바나듐(V) 옥시트리에톡사이드, 바나듐(V) 옥시클로라이드, 바나듐(V) 옥시트리프로폭사이드, 바나듐(V) 옥시트리이소프로폭사이드, Mo(V) 에톡사이드, Mo(VI) 옥사이드 비스(2,4-펜탄디오네이트), W(V) 에톡사이드, W(VI) 옥시클로라이드, 및 W(VI) 디클로라이드 디옥사이드(WO2Cl2)로 이루어진 군으로부터 선택되는 것을 포함하는 것인 유-무기 복합 태양전지용 정공수송층 형성용 조성물.
- 청구항 1에 있어서, 상기 조성물은 상기 Cu계 정공수송물질 및 상기 금속산화물 전구체가 용해되는 용매를 더 포함하는 것인 유-무기 복합 태양전지용 정공수송층 형성용 조성물.
- 제1 전극을 준비하는 단계;
상기 제1 전극 상에 페로브스카이트 구조의 화합물을 포함하는 광흡수층을 형성하는 단계; 및
상기 광흡수층 상에 제2 전극을 형성하는 단계
를 포함하는 유-무기 복합 태양전지의 제조방법에 있어서,
상기 제1 전극과 상기 광흡수층 사이, 또는 상기 제2 전극과 상기 광흡수층 사이에 청구항 1 내지 6 중 한 항에 따른 조성물을 이용하여 정공수송층을 형성하는 단계를 더 포함하는 유-무기 복합 태양전지의 제조방법. - 청구항 7에 있어서, 상기 정공수송층을 형성하는 단계는 150℃ 이하에서의 용액 공정에 의하여 수행되는 것인 유-무기 복합 태양전지의 제조방법.
- 청구항 7에 있어서, 상기 정공수송층을 형성하는 단계는 상기 광흡수층을 형성하는 단계 이후, 상기 광흡수층 상에 상기 조성물을 용액 공정에 의하여 도포하고, 150℃ 이하에서 열처리 함으로써 수행하는 것인 유-무기 복합 태양전지의 제조방법.
- 제1 전극; 제2 전극; 및 상기 제1 전극과 상기 제2 전극 사이에 구비되고, 페로브스카이트 구조의 화합물을 포함하는 광흡수층을 포함하는 유-무기 복합 태양전지로서, 상기 제1 전극과 상기 광흡수층 사이, 또는 상기 제2 전극과 상기 광흡수층 사이에 구비된 정공수송층을 더 포함하고, 상기 정공수송층은 Cu계 정공수송물질; 및 바나듐 산화물, 몰리브덴 산화물 및 텅스텐 산화물 중 적어도 하나의 금속산화물을 포함하는 것인 유-무기 복합 태양전지.
- 청구항 10에 있어서, 상기 정공수송층 중의 상기 금속산화물의 함량은 상기 Cu계 정공수송물질 100 중량부 대비 1 중량부 내지 60 중량부인 것인 유-무기 복합 태양전지.
- 청구항 10에 있어서, 상기 정공수송층은 150℃ 이하에서의 용액 공정에 의하여 형성된 것인 유-무기 복합 태양전지.
- 청구항 10에 있어서, 상기 정공수송층은 약 600 nm 및 약 1500 nm에서 흡수 피크를 갖는 것인 유-무기 복합 태양전지.
- 청구항 10에 있어서, 상기 Cu계 정공수송물질은 CuSCN, Cu 할로겐화물 및 Cu 첨가 산화물 중에서 선택되는 것을 포함하는 것인 유-무기 복합 태양전지.
- 청구항 14에 있어서, 상기 Cu계 정공수송물질은 CuSCN, CuI, CuBr, 및 Cu:NiO (Cu doped NiO) 중에서 선택되는 것을 포함하는 것인 유-무기 복합 태양전지.
- 청구항 10에 있어서, 상기 금속산화물은 바나듐(V) 산화물, Mo(V) 산화물, Mo(VI) 산화물, W(V) 산화물 및 W(VI) 산화물로 이루어진 군으로부터 선택되는 것을 포함하는 것인 유-무기 복합 태양전지.
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