화학공학소재연구정보센터
학회 한국공업화학회
학술대회 2022년 봄 (05/11 ~ 05/13, 제주국제컨벤션센터(ICC JEJU))
권호 26권 1호
발표분야 포스터-에너지저장·변환
제목 Role of Electrochemical Reactions in theDegradation of Formamidinium Lead Halide Hybrid Perovskite Quantum Dots
초록 Organic-inorganic hybrid perovskites are widely utilized in solar driven chemistry. Hybrid perovskites contain various components with high polarity and/or charge values, which undergo transformations due to various ion interactions. These characteristics make perovskites as "soft materials". Meanwhile, optoelectronic devices often operate under electrochemical reactions in the presence of an electrical field. To examine the effect of this field on thematerial/photophysical properties of hybrid perovskites, hybrid FAPbBr3 perovskite quantum dots (PQDs) were utilized. In this study, we report the spectroelectrochemical investigation of the hybrid FAPbBr3 PQDs to understand the electrochemical stability and irreversible transformation process. We also found that the electrochemical condition played an important role in inducing defect-mediated oxidation/reduction reactions and causing their irreversible transformations to various lead halide plumbate complexes.​
저자 신예지1, 김경수2, 이채현1, 김효인2, 윤석준1, 한동훈2
소속 1영남대, 2가톨릭대
키워드 perovskite; formamidinium; electrochemical
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