KR20190078493A - 광흡수층용 전구체, 이를 이용한 유-무기 복합 태양전지 제조방법 및 유-무기 복합 태양전지 - Google Patents
광흡수층용 전구체, 이를 이용한 유-무기 복합 태양전지 제조방법 및 유-무기 복합 태양전지 Download PDFInfo
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Abstract
Description
도 2는 실시예 1에서 제조된 유-무기 복합 태양전지 단면의 주사전자현미경(SEM) 이미지를 나타낸 도이다.
도 3은 비교예 1에서 제조된 유-무기 복합 태양전지 단면의 주사전자현미경(SEM) 이미지를 나타낸 도이다.
도 4는 본 명세서의 일 실시상태에 따른 유-무기 복합 태양전지의 전압에 따른 전류밀도 측정 결과를 나타낸 도이다.
도 5는 실시예 1에서 제조된 유-무기 복합 태양전지의 전압에 따른 전류 밀도를 반복 측정한 결과를 나타낸 도이다.
도 6은 비교예 1에서 제조된 유-무기 복합 태양전지의 전압에 따른 전류 밀도를 반복 측정한 결과를 나타낸 도이다.
불소계 유기화합물 (wt%) |
PCE (%) |
Jsc (mA/cm2) |
Voc (V) |
FF (%) |
|
실시예 1 | 0.05 | 16.8 | 23.4 | 1.09 | 66.4 |
비교예 1 | 0 | 15.5 | 22.8 | 0.986 | 68.8 |
비교예 2 | 0.55 | 6.2 | 22.5 | 0.964 | 28.8 |
비교예 3 | 0 | 0.6 | 17.3 | 0.127 | 27.7 |
20: 제1 공통층
30: 광흡수층
40: 제2 공통층
50: 제2 전극
Claims (10)
- 페로브스카이트 전구체; 및
상기 페로브스카이트 전구체 대비 0.005wt% 내지 0.5wt%의 불소계 유기화합물을 포함하는 것인 광흡수층용 전구체. - 청구항 1에 있어서,
상기 페로브스카이트 전구체는 유기할로겐화물 및 금속할로겐화물을 포함하는 것인 광흡수층용 전구체. - 청구항 2에 있어서,
상기 유기할로겐화물은 하기 화학식 1 내지 3 중 어느 하나로 표시되는 것인 광흡수층용 전구체:
[화학식 1]
R1X1
[화학식 2]
R2aR3(1-a) X2e X3(1-e)
[화학식 3]
R4bR5cR6dX4e'X5(1-e')
상기 화학식 1 내지 3에 있어서,
R2 및 R3는 서로 상이하고,
R4, R5 및 R6는 서로 상이하며,
R1 내지 R6는 각각 CnH2n + 1NH3 +, NH4 +, HC(NH2)2 +, Cs+, NF4 +, NCl4 +, PF4 +, PCl4 +, CH3PH3 +, CH3AsH3 +, CH3SbH3 +, PH4 +, AsH4 + 및 SbH4 +에서 선택되는 1가의 양이온이며,
X1 내지 X5는 서로 같거나 상이하고, 각각 독립적으로 할로겐 이온이며,
n은 1 내지 9의 정수이고,
a는 0<a<1의 실수이며,
b는 0<b<1의 실수이고,
c는 0<c<1의 실수이며,
d는 0<d<1의 실수이고,
b+c+d는 1이고,
e는 0<e<1의 실수이며,
e'은 0<e'<1의 실수이다. - 청구항 2에 있어서,
상기 금속할로겐화물은 하기 화학식 4로 표시되는 것인 광흡수층용 전구체:
[화학식 4]
M1X62
상기 화학식 4에 있어서,
M1은 Cu2 +, Ni2 +, Co2 +, Fe2 +, Mn2 +, Cr2 +, Pd2 +, Cd2 +, Ge2 +, Sn2 +, Pb2 + 및 Yb2 + 에서 선택되는 2가의 금속 이온이며,
X6는 할로겐 이온이다. - 청구항 1에 있어서,
상기 불소계 유기화합물은 불소계 계면활성제를 포함하는 것인 광흡수층용 전구체. - 제1 전극을 준비하는 단계;
상기 제1 전극 상에 제1 공통층을 형성하는 단계;
상기 제1 공통층 상에 청구항 1 내지 5 중 어느 한 항에 따른 광흡수층용 전구체를 코팅하여 광흡수층을 형성하는 단계;
상기 광흡수층 상에 제2 공통층을 형성하는 단계; 및
상기 제2 공통층 상에 제2 전극을 형성하는 단계를 포함하는 유-무기 복합 태양전지 제조방법. - 청구항 6에 따라 제조된 유-무기 복합 태양전지.
- 제1 전극;
상기 제1 전극 상에 구비된 제1 공통층;
상기 제1 공통층 상에 구비된 광흡수층;
상기 광흡수층 상에 구비된 제2 공통층; 및
상기 제2 공통층 상에 구비된 제2 전극을 포함하는 유-무기 복합 태양전지에 있어서,
상기 광흡수층은 페로브스카이트 구조의 화합물; 및 불소계 유기화합물을 포함하고,
상기 불소계 유기화합물은 광흡수층 질량 대비 0.005wt% 내지 5wt% 포함되는 것인 유-무기 복합 태양전지. - 청구항 8에 있어서,
상기 페로브스카이트 구조의 화합물은 하기 화학식 5 내지 7 중 어느 하나로 표시되는 것인 유-무기 복합 태양전지:
[화학식 5]
R1M1X13
[화학식 6]
R2aR3(1-a)M2X2zX3(3-z)
[화학식 7]
R4bR5cR6dM3X4z'X5(3-z')
상기 화학식 5 내지 7에 있어서,
R2 및 R3는 서로 상이하고,
R4, R5 및 R6는 서로 상이하며,
R1 내지 R6는 각각 CnH2n + 1NH3 +, NH4 +, HC(NH2)2 +, Cs+, NF4 +, NCl4 +, PF4 +, PCl4 +, CH3PH3 +, CH3AsH3 +, CH3SbH3 +, PH4 +, AsH4 + 및 SbH4 +에서 선택되는 1가의 양이온이며,
M1 내지 M3는 서로 같거나 상이하고, 각각 독립적으로 Cu2 +, Ni2 +, Co2 +, Fe2 +, Mn2+, Cr2 +, Pd2 +, Cd2 +, Ge2 +, Sn2 +, Bi2 +, Pb2 + 및 Yb2 + 에서 선택되는 2가의 금속 이온이고,
X1 내지 X5는 서로 같거나 상이하고, 각각 독립적으로 할로겐 이온이며,
n은 1 내지 9의 정수이고,
a는 0<a<1의 실수이며,
b는 0<b<1의 실수이고,
c는 0<c<1의 실수이며,
d는 0<d<1의 실수이고,
b+c+d는 1이고,
z는 0<z<3의 실수이며,
z'은 0<z'<3의 실수이다. - 청구항 8에 있어서,
상기 불소계 유기화합물은 불소계 계면활성제를 포함하는 것인 유-무기 복합 태양전지.
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