The Additive Coordination Effect on Hybrids Perovskite Crystallization and High-Performance Solar Cell
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- 英文论文题名：The Additive Coordination Effect on Hybrids Perovskite Crystallization and High-Performance Solar Cell
- 论文作者：Liang Li ; Yihua Chen ; Rundong Fan ; Xindong Wang ; Huanping Zhou
- 英文论文作者：Liang Li ; Yihua Chen ; Rundong Fan ; Xindong Wang ; Huanping Zhou ; Department of Physical Chemistry ; University of Science and Technology Beijing &College of Engineering ; Peking University
- 年：2017
- 作者机构：Department of Physical Chemistry, University of Science and Technology Beijing &College of Engineering, Peking University;
- 英文论文关键词：perovskite ; solar cell ; additive ; film ; high efficiency
- 会议召开时间：2017-05-27
- 会议录名称：第四届新型太阳能电池学术研讨会论文集
- 英文会议录名称：Abstract Book of the 4th Conference on New Generation Solar Cells
- 语种：英文
- 分类号：TM914.4
- 学会代码：ZKYQ
- 会议名称：第四届新型太阳能电池学术研讨会
- 会议地点：中国北京
- 主办单位：中国可再生能源学会光化学专业委员会
- 学会名称：中国科学院物理研究所清洁能源实验室
- 页数：1
- 文件大小：678k
- 原文格式：D
- 会议级别：全国
摘要
Along with the development of photovoltaic technologies, it has always been an essential issue to improve the film quality of the absorber, and thus the resulted device performance.In perovskite solar cells, it is even more important to achieve a delicate control of film growth of photoactive layers due to its hybrid nature.Here, for the first time, we demonstrate a novel technique to fabricate perovskite thin film by introducing a weak coordination additive(e.g.acetonitrile) into the perovskite precursor.With this method, we successfully control the nucleation/growth rate by the judicious selection of additives during film formation.The underlying mechanism regarding the perovskite film growth is thoroughly studied based on the combined characterization including SEM, FTIR, DLS, and XRD.The corresponding perovskite film shows extraordinary large grain size, crystallinity, and carrier lifetime, leading to an enhanced efficiency of 19.7%, with stabilized efficiency of 17.5%.This study also reveals a wide spectrum of additives with different coordination capability that mediates perovskite materials growth.It is proved to serve as a new parameter that further aids in rational process of the polycrystalline organic/inorganic hybrids materials.
Along with the development of photovoltaic technologies, it has always been an essential issue to improve the film quality of the absorber, and thus the resulted device performance.In perovskite solar cells, it is even more important to achieve a delicate control of film growth of photoactive layers due to its hybrid nature.Here, for the first time, we demonstrate a novel technique to fabricate perovskite thin film by introducing a weak coordination additive(e.g.acetonitrile) into the perovskite precursor.With this method, we successfully control the nucleation/growth rate by the judicious selection of additives during film formation.The underlying mechanism regarding the perovskite film growth is thoroughly studied based on the combined characterization including SEM, FTIR, DLS, and XRD.The corresponding perovskite film shows extraordinary large grain size, crystallinity, and carrier lifetime, leading to an enhanced efficiency of 19.7%, with stabilized efficiency of 17.5%.This study also reveals a wide spectrum of additives with different coordination capability that mediates perovskite materials growth.It is proved to serve as a new parameter that further aids in rational process of the polycrystalline organic/inorganic hybrids materials.
Along with the development of photovoltaic technologies, it has always been an essential issue to improve the film quality of the absorber, and thus the resulted device performance.In perovskite solar cells, it is even more important to achieve a delicate control of film growth of photoactive layers due to its hybrid nature.Here, for the first time, we demonstrate a novel technique to fabricate perovskite thin film by introducing a weak coordination additive(e.g.acetonitrile) into the perovskite precursor.With this method, we successfully control the nucleation/growth rate by the judicious selection of additives during film formation.The underlying mechanism regarding the perovskite film growth is thoroughly studied based on the combined characterization including SEM, FTIR, DLS, and XRD.The corresponding perovskite film shows extraordinary large grain size, crystallinity, and carrier lifetime, leading to an enhanced efficiency of 19.7%, with stabilized efficiency of 17.5%.This study also reveals a wide spectrum of additives with different coordination capability that mediates perovskite materials growth.It is proved to serve as a new parameter that further aids in rational process of the polycrystalline organic/inorganic hybrids materials.
引文
[1]L.Li,Y.Chen,Z.Liu,Q.Chen,X.Wang and H.Zhou,Adv.Mater.,2016,28,9862–9868