Low-Temperature Solution-Processed Sn-doped TiO2 as Electron Transporting Layer for Efficient Perovskite Solar Cells
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- 英文论文题名：Low-Temperature Solution-Processed Sn-doped TiO2 as Electron Transporting Layer for Efficient Perovskite Solar Cells
- 论文作者：Qingbin Cai ; Xiaotao Liu ; Jiefei Wang ; Chao Liang ; Pengwei Li ; Hao Gu ; Yiqiang Zhang ; Guosheng Shao
- 英文论文作者：Qingbin Cai ; Xiaotao Liu ; Jiefei Wang ; Chao Liang ; Pengwei Li ; Hao Gu ; Yiqiang Zhang ; Guosheng Shao ; State Centre for International Cooperation on Designer Low-Carbon and Environmental Material (SCICDLCEM) ; School of Materials Science and Engineering ; Zhengzhou University
- 年：2017
- 作者机构：State Centre for International Cooperation on Designer Low-Carbon and Environmental Material (SCICDLCEM), School of Materials Science and Engineering, Zhengzhou University;
- 英文论文关键词：Perovskite solar cells ; Sn-doped TiO2 ; Electron transporting layers
- 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：503k
- 原文格式：D
- 会议级别：全国
摘要
Perovskite solar cells(PSCs) are awesome compared to silicon solar cells due to their low cost and easy fabrication.Lead halide perovskite solar cells with the high efficiencies typically use high-temperature processed TiO_2 as the electron transporting layers(ETLs).~(1,2) Here we dem-onstrate that low-temperature solution-processed nanocrystalline Sn-doped TiO_2 can be an excellent alternative ETL material for efficient perovskite solar cells.Our optimized planar solar cell using such a Sn-doped TiO_2 ETL has achieved an efficiency of 16.7%, attributing to high electron mobility related to the insertion of Sn~(4+) ions.The study indicated that the introduction of the Sn element led to the change of the TiO_2 band gap from 3.0 to 3.2 eV.Electrochemical impedance spectroscopy showed that the resistance of the device based on Sn-doped TiO_2 film was lower than that of the undoped device.The PCE of the Sn-doped perovskite device achieved 16.7%, which was almost 25.6% higher than that of the undoped sample.The simple low temperature process is compatible with the roll-to-roll manufacturing of low-cost perovskite solar cells on flexible substrates.
Perovskite solar cells(PSCs) are awesome compared to silicon solar cells due to their low cost and easy fabrication.Lead halide perovskite solar cells with the high efficiencies typically use high-temperature processed TiO_2 as the electron transporting layers(ETLs).~(1,2) Here we dem-onstrate that low-temperature solution-processed nanocrystalline Sn-doped TiO_2 can be an excellent alternative ETL material for efficient perovskite solar cells.Our optimized planar solar cell using such a Sn-doped TiO_2 ETL has achieved an efficiency of 16.7%, attributing to high electron mobility related to the insertion of Sn~(4+) ions.The study indicated that the introduction of the Sn element led to the change of the TiO_2 band gap from 3.0 to 3.2 eV.Electrochemical impedance spectroscopy showed that the resistance of the device based on Sn-doped TiO_2 film was lower than that of the undoped device.The PCE of the Sn-doped perovskite device achieved 16.7%, which was almost 25.6% higher than that of the undoped sample.The simple low temperature process is compatible with the roll-to-roll manufacturing of low-cost perovskite solar cells on flexible substrates.
Perovskite solar cells(PSCs) are awesome compared to silicon solar cells due to their low cost and easy fabrication.Lead halide perovskite solar cells with the high efficiencies typically use high-temperature processed TiO_2 as the electron transporting layers(ETLs).~(1,2) Here we dem-onstrate that low-temperature solution-processed nanocrystalline Sn-doped TiO_2 can be an excellent alternative ETL material for efficient perovskite solar cells.Our optimized planar solar cell using such a Sn-doped TiO_2 ETL has achieved an efficiency of 16.7%, attributing to high electron mobility related to the insertion of Sn~(4+) ions.The study indicated that the introduction of the Sn element led to the change of the TiO_2 band gap from 3.0 to 3.2 eV.Electrochemical impedance spectroscopy showed that the resistance of the device based on Sn-doped TiO_2 film was lower than that of the undoped device.The PCE of the Sn-doped perovskite device achieved 16.7%, which was almost 25.6% higher than that of the undoped sample.The simple low temperature process is compatible with the roll-to-roll manufacturing of low-cost perovskite solar cells on flexible substrates.
引文
[1]Xie F X,Zhang D,Su H,et al.,ACS nano,2015,9,639-646.
[2]Zhou Y,Yang M,Vasiliev A L,et al.,J.Mater.Chem.A,2015,3,9249-9256.
[2]Zhou Y,Yang M,Vasiliev A L,et al.,J.Mater.Chem.A,2015,3,9249-9256.