Low-temperature Preparation and Performance of Perovskite Solar Cells
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- 英文论文题名：Low-temperature Preparation and Performance of Perovskite Solar Cells
- 论文作者：Caifeng Zhang ; Wenhui Gao ; Zhimeng Shao ; Hua Zhang ; Guangmei Zhai
- 英文论文作者：Caifeng Zhang ; Wenhui Gao ; Zhimeng Shao ; Hua Zhang ; Guangmei Zhai ; Key Laboratory of Interface Science and Engineering in Advanced Materials of MoE ; Research Centre of Advanced Materials Science and Technology ; Taiyuan University of Technology
- 年：2017
- 作者机构：Key Laboratory of Interface Science and Engineering in Advanced Materials of MoE,Research Centre of Advanced Materials Science and Technology, Taiyuan University of Technology;
- 英文论文关键词：perovskite solar cells ; low-temperature ; TiO2 interfacial modification ; stability
- 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：511k
- 原文格式：D
- 会议级别：全国
摘要
Although low-temperature, solution-processed zinc oxide(ZnO) has been widely adopted as the electron collection layer(ECL) in perovskite solar cells(PSCs) because of its simple synthesis and excellent electrical properties such as high charge mobility, the thermal stability of perovskite films deposited atop ZnO layers remains as a major issue.Herein, we report a strategy of low-temperature TiO_2 surfice modification to ZnO nanoparticle(NP) layers for alleviate the issue.Based on the proposed strategy, an overall power conversion efficiency(PCE) of 15% has been achieved mainly due to the improved open-circuit voltage(V_(oc)) of 1.06 V, short-circuit current density(J_(sc)) of 19.1mA cm~(-2), and fill factor(FF) of 0.74, which are much higher than those of bare ZnO NPs-based devices.More importantly, the perovskite solar cells based on low-temperature TiO_2 modified ZnO ECLs may retain 80% of their initial performance after 750 hours of atmosphere storage, showing much higher device stability.Due to the fact that the entire device fabrication can be processed at less than 150℃, it is expected that the surface modified ZnO film developed here may be employed as an effective ETL of low temperature processed, efficient and stable PSCs that are compatible with flexible electronics.
Although low-temperature, solution-processed zinc oxide(ZnO) has been widely adopted as the electron collection layer(ECL) in perovskite solar cells(PSCs) because of its simple synthesis and excellent electrical properties such as high charge mobility, the thermal stability of perovskite films deposited atop ZnO layers remains as a major issue.Herein, we report a strategy of low-temperature TiO_2 surfice modification to ZnO nanoparticle(NP) layers for alleviate the issue.Based on the proposed strategy, an overall power conversion efficiency(PCE) of 15% has been achieved mainly due to the improved open-circuit voltage(V_(oc)) of 1.06 V, short-circuit current density(J_(sc)) of 19.1mA cm~(-2), and fill factor(FF) of 0.74, which are much higher than those of bare ZnO NPs-based devices.More importantly, the perovskite solar cells based on low-temperature TiO_2 modified ZnO ECLs may retain 80% of their initial performance after 750 hours of atmosphere storage, showing much higher device stability.Due to the fact that the entire device fabrication can be processed at less than 150℃, it is expected that the surface modified ZnO film developed here may be employed as an effective ETL of low temperature processed, efficient and stable PSCs that are compatible with flexible electronics.
Although low-temperature, solution-processed zinc oxide(ZnO) has been widely adopted as the electron collection layer(ECL) in perovskite solar cells(PSCs) because of its simple synthesis and excellent electrical properties such as high charge mobility, the thermal stability of perovskite films deposited atop ZnO layers remains as a major issue.Herein, we report a strategy of low-temperature TiO_2 surfice modification to ZnO nanoparticle(NP) layers for alleviate the issue.Based on the proposed strategy, an overall power conversion efficiency(PCE) of 15% has been achieved mainly due to the improved open-circuit voltage(V_(oc)) of 1.06 V, short-circuit current density(J_(sc)) of 19.1mA cm~(-2), and fill factor(FF) of 0.74, which are much higher than those of bare ZnO NPs-based devices.More importantly, the perovskite solar cells based on low-temperature TiO_2 modified ZnO ECLs may retain 80% of their initial performance after 750 hours of atmosphere storage, showing much higher device stability.Due to the fact that the entire device fabrication can be processed at less than 150℃, it is expected that the surface modified ZnO film developed here may be employed as an effective ETL of low temperature processed, efficient and stable PSCs that are compatible with flexible electronics.
引文
[1]Xingyue Zhao,Heping Shen,Ye Zhang,Xin Li,Xiaochong Zhao,Meiqian Tai,Jingfeng Li,Jianbao Li,Xin Li and Hong Lin,ACS Appl.Mater.Interfaces 2016,8,7826-7833.
[2]Junghwan Kim,Geunjin Kim,Tae Kyun Kim,Sooncheol Kwon,Hyungcheol Back,Jinho Lee,a Seoung Ho Lee,Hongkyu Kangb and Kwanghee Lee,J.Mater.Chem.A,2014,2,17291–17296.
[2]Junghwan Kim,Geunjin Kim,Tae Kyun Kim,Sooncheol Kwon,Hyungcheol Back,Jinho Lee,a Seoung Ho Lee,Hongkyu Kangb and Kwanghee Lee,J.Mater.Chem.A,2014,2,17291–17296.