| 학회 |
한국고분자학회 |
| 학술대회 |
2020년 가을 (10/05 ~ 10/08, 부산컨벤션센터(BEXCO)) |
| 권호 |
45권 1호 |
| 발표분야 |
고분자가공/복합재료 |
| 제목 |
Correlation between morphological and electrical characteristics for high current generation: methylammonium lead halide solubility control in perovskite photovoltaics |
| 초록 |
Although many efforts have been made to achieve a uniform and dense perovskite film, the use of stoichiometry (CH3NH3I:PbI2:DMSO=1:1:1) has been limited. This is because the CH3NH3I-PbI2-DMSO intermediate phase and the CH3NH3PbI3 crystal phase can coexist in the precursor solution with stoichiometric ratios. To solve this, a complex process was inevitably needed to ensure the uniformity of the perovskite layer. Here, the quality of the CH3NH3PbI3 crystal thin film is simply improved via controlling non stoichiometric molar ratio (CH3NH3I:PbI2:DMSO) a uniform and dense CH3NH3PbI3 thin film was successfully fabricated by controlling the solution solubility and the perovskite adduct formation. This demonstrated a critical point to improve current density and power conversion efficiency in inverted perovskite solar cells. The synergistic effect of morphology and electrical properties has demonstrated a critical point for generating high current densities in inverted perovskite solar cells. |
| 저자 |
김병기, 장웅식, 조재상, 왕동환
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| 소속 |
중앙대 |
| 키워드 |
Perovskite; Photovoltaics; Stoichiometry; Morpohlogy; Current generation
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| E-Mail |
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