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The J – V Hysteresis Behavior and Solutions in Perovskite Solar Cells
Author(s) -
Wang Meng,
Lei Yutian,
Xu Youkui,
Han Lili,
Ci Zhipeng,
Jin Zhiwen
Publication year - 2020
Publication title -
solar rrl
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.544
H-Index - 37
ISSN - 2367-198X
DOI - 10.1002/solr.202000586
Subject(s) - hysteresis , perovskite (structure) , photovoltaic system , materials science , energy conversion efficiency , layer (electronics) , engineering physics , optoelectronics , condensed matter physics , nanotechnology , physics , electrical engineering , engineering , chemical engineering
The power conversion efficiency (PCE) of perovskite solar cells (PSCs) has exceeded 25%, showing great potential in the photovoltaic field. However, PSCs often show anomalous current density–voltage ( J–V ) hysteresis behavior in the forward and reverse scanning directions, which makes it impossible to accurately evaluate the performance of PSCs. Therefore, it is necessary to clearly understand the mechanism of hysteresis and suppress the hysteresis. Herein, the J – V hysteresis behavior in PSCs and strategies to suppress hysteresis is focused: first, the various factors that affect J – V hysteresis in PSCs are summarized. And the mechanism behind the various possible origins of hysteresis and the challenges encountered are explored. Then, the strategies to suppress or eliminate the hysteresis are summarized, including optimizing the perovskite light‐absorbing layer, improving the performance of the carrier transport layer and interface engineering. Finally, insights on the future development of the hysteresis are also provided.