Origin of J‿i>V Hysteresis in Perovskite Solar Cells

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• 作者：Bo Chen ; Mengjin Yang ; Shashank Priya ; Kai Zhu
• 刊名：The Journal of Physical Chemistry Letters
• 出版年：2016
• 出版时间：March 3, 2016
• 年：2016
• 卷：7
• 期：5
• 页码：905-917
• 全文大小：864K
• 年卷期：Bo Chen
  is a Research Associate Fellow in the Center for Energy Harvesting Materials and Systems at Virginia Tech. He received his B.S. degree in Physics from Zhejiang University in 2007 and his Ph.D. degree in Materials Science and Engineering from Virginia Tech in 2012. His recent research focuses on organometal halide perovskite solar cells, dye-sensitized solar cells, and photoelectrochemical water splitting.
  Mengjin Yang
  received his Ph.D. degree in Materials Science from the University of Pittsburgh. He is now a postdoctoral researcher at the National Renewable Energy Laboratory. His research focuses on the development and characterization of hybrid solar cells and other optoelectronics.
  Shashank Priya
  is currently Robert E. Hord Jr. Professor in the Department of Mechanical Engineering at Virginia Tech. Prior to that, he served as the I/UCRC program director at the National Science Foundation. At Virginia Tech, he has served as the director of the NSF I/UCRC: Center for Energy Harvesting Materials and Systems and associate director of the Center for Intelligent Material Systems and Structures.
  Kai Zhu
  is a senior scientist in the Chemistry and Nanoscience Center at the National Renewable Energy Laboratory. He received his Ph.D. degree in physics from Syracuse University in 2003. His recent research focuses on both basic and applied studies on perovskite solar cells, including material development, device fabrication/characterization, and a basic understanding of charge-carrier dynamics in these cells.
• ISSN：1948-7185

文摘

High-performance perovskite solar cells (PSCs) based on organometal halide perovskite have emerged in the past five years as excellent devices for harvesting solar energy. Some remaining challenges should be resolved to continue the momentum in their development. The photocurrent density–voltage (J−V) responses of the PSCs demonstrate anomalous dependence on the voltage scan direction/rate/range, voltage conditioning history, and device configuration. The hysteretic J–V behavior presents a challenge for determining the accurate power conversion efficiency of the PSCs. Here, we review the recent progress on the investigation of the origin(s) of J–V hysteresis behavior in PSCs. We discuss the impact of slow transient capacitive current, trapping and detrapping process, ion migrations, and ferroelectric polarization on the hysteresis behavior. The remaining issues and future research required toward the understanding of J–V hysteresis in PSCs will also be discussed.