Low-temperature aqueous solution processed ZnO as an electron transporting layer for efficient perovskite solar cells
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- 英文论文题名：Low-temperature aqueous solution processed ZnO as an electron transporting layer for efficient perovskite solar cells
- 论文作者：Junshuai Zhou ; Xiangyue Meng ; Jie Hou ; Yingchu Chen ; Xia Tao
- 英文论文作者：Junshuai Zhou ; Xiangyue Meng ; Jie Hou ; Yingchu Chen ; Xia Tao ; State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology
- 年：2017
- 作者机构：State Key Laboratory of Organic-Inorganic Composites Beijing University of Chemical Technology;
- 英文论文关键词：perovskite solar cell ; zinc oxide ; urea
- 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：412k
- 原文格式：D
- 会议级别：全国
摘要
Lead halide perovskite solar cells(PSCs) typically use high-temperature processed TiO_2 as electron transporting layers(ETLs).Here, we report a low temperature and aqueous solution processed route to prepare ZnO ETLs for perovskite solar cells.The ZnO ETL was prepared by spin coating a stable aqueous solution of an ammine-hydroxo zinc complex, [Zn(NH_3)_x](OH)_2, followed by thermal annealing at a relatively low temperature of 150 ℃.The as-prepared ZnO film was highly transparent and uniform.Moreover, the relatively low work function of the ZnO film led to a high open circuit voltage(1.07 V), indicating its promise as the electron transporting layer.To further improve the photovoltaic performance, urea was introduced between the ZnO layer and the perovskite layer to improve the perovskite crystal growth.As a result, the PCE surged to 14.6%.We further exploited the low-temperature processed ZnO film for flexible PSCs, which have shown good mechanical stability with a respectable PCE of 11.9%.
Lead halide perovskite solar cells(PSCs) typically use high-temperature processed TiO_2 as electron transporting layers(ETLs).Here, we report a low temperature and aqueous solution processed route to prepare ZnO ETLs for perovskite solar cells.The ZnO ETL was prepared by spin coating a stable aqueous solution of an ammine-hydroxo zinc complex, [Zn(NH_3)_x](OH)_2, followed by thermal annealing at a relatively low temperature of 150 ℃.The as-prepared ZnO film was highly transparent and uniform.Moreover, the relatively low work function of the ZnO film led to a high open circuit voltage(1.07 V), indicating its promise as the electron transporting layer.To further improve the photovoltaic performance, urea was introduced between the ZnO layer and the perovskite layer to improve the perovskite crystal growth.As a result, the PCE surged to 14.6%.We further exploited the low-temperature processed ZnO film for flexible PSCs, which have shown good mechanical stability with a respectable PCE of 11.9%.
Lead halide perovskite solar cells(PSCs) typically use high-temperature processed TiO_2 as electron transporting layers(ETLs).Here, we report a low temperature and aqueous solution processed route to prepare ZnO ETLs for perovskite solar cells.The ZnO ETL was prepared by spin coating a stable aqueous solution of an ammine-hydroxo zinc complex, [Zn(NH_3)_x](OH)_2, followed by thermal annealing at a relatively low temperature of 150 ℃.The as-prepared ZnO film was highly transparent and uniform.Moreover, the relatively low work function of the ZnO film led to a high open circuit voltage(1.07 V), indicating its promise as the electron transporting layer.To further improve the photovoltaic performance, urea was introduced between the ZnO layer and the perovskite layer to improve the perovskite crystal growth.As a result, the PCE surged to 14.6%.We further exploited the low-temperature processed ZnO film for flexible PSCs, which have shown good mechanical stability with a respectable PCE of 11.9%.
引文
[1]J.Zhou,X.Meng*,X.Zhang,X.Tao,Z.Zhang,J.Hu,C.Wang,Y.Li and S.Yang*,Mater.Chem.Front.2017,10.1039/C6QM00248J.