https://scholars.lib.ntu.edu.tw/handle/123456789/431891
標題: | Possible interfacial ion/charge accumulation in thin-film perovskite/fullerene surfactant planar heterojunction solar cells | 作者: | Liang P.-W. Chen C.-I. Chueh C.-C. CHU-CHEN CHUEH |
公開日期: | 2018 | 出版社: | Institute of Physics Publishing | 卷: | 51 | 期: | 50 | 來源出版物: | Journal of Physics D: Applied Physics | 摘要: | Organic-inorganic hybrid perovskite solar cells (PVSCs) have become the most promising photovoltaic technology nowadays, considering its low-cost and low-temperature manufacturing processes and superior power conversion efficiency. In addition to efficiency optimization, understanding the fundamental properties of the perovskite materials and the related device physics, such as hysteresis and stability, has also attracted significant research interest. In this study, we manifested the fact that the hysteretic behavior of PVSC is strongly correlated with the structure design of the adjacent charge-transporting layer (CTL). The constituent ions in CTL are very likely to induce severe device hysteresis based on the analyses from the capacitance-voltage and electrochemical impedance spectroscopy. By further applying Warburg impedance to simulate the impedance spectrum at the low-frequency region, distinct kinetics of ion movement at different perovskite/electron-transporting layer interfaces are clearly revealed. This work unveils the close interactions between the perovskite material and the ions from adjacent CTLs, providing a new perspective on the future molecular design of CTLs for PVSCs. © 2018 IOP Publishing Ltd. |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055480280&doi=10.1088%2f1361-6463%2faaddde&partnerID=40&md5=0f1d01fe4c996f4a7bb4dc4bfafbcea9 https://scholars.lib.ntu.edu.tw/handle/123456789/431891 |
ISSN: | 00223727 | DOI: | 10.1088/1361-6463/aaddde | SDG/關鍵字: | Capacitance; Efficiency; Electrochemical impedance spectroscopy; Heterojunctions; Hysteresis; Interfaces (materials); Ions; organic-inorganic materials; Perovskite; Solar cells; Solar power generation; Temperature; Charge transporting; Efficiency optimization; Fundamental properties; Heterojunction solar cells; Low frequency regions; Organic-inorganic hybrid; Photovoltaic technology; Power conversion efficiencies; Perovskite solar cells |
顯示於: | 化學工程學系 |
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