检索结果-南通市图书馆

检索条件"主题词=Flash-evaporation printing"

共 1 条记录，以下是1-10 订阅

全选清除本页清除全部题录导出标记到"检索档案"

详细简洁

排序：

Efficient and Stable CsPbI2Br Perovskite Solar Cells Based on In-situ Formation of 2D/3D Heterostructure

Efficient and Stable CsPbI2Br Perovskite Solar Cells Based o...

引用

第九届新型太阳能材料科学与技术学术研讨会

作者： Xuanling Liu Meiqian Tai Hong Lin School of Materials Science and Engineering Tsinghua University

Mixed halide inorganic perovskite CsPbI2 Br has been considered as promising absorber due to its improved phase stability and reasonable bandgap(1.92 eV). However, the instability of CsPbI2 Br solar cells in humidity environment hampers its further development. In order to prepare efficient and stable CsPbI2 Br solar cells, our group used carbon nanotube(CNT) sheets as an evaporator to prepare CsPbI2 Br thin films by flash-evaporation printing(FEP) at high temperature without solvent and anti-solvent, demonstrating a method that can prepare compact and uniform thin films with high reproducibility and it’s also suitable for preparing insoluble materials. Solar cells based on these CsPbI2 Br thin films exhibited a champion power conversion efficiency of 12.2%. To further improve the humidity stability, we next reported an in-situ growth method to prepare 2 D/3 D heterostructure for CsPbI2 Br solar cells with the help of solvent, which overcome difficulties of constructing 2 D perovskite for Cs-based perovskite through simple cation-exchange because of reaction resistance. As a result, the Type Ⅱ heterostructure was constructed between the 2 D capping layer and 3 D perovskite, which facilitated hole extraction and suppressed the carrier recombination at the perovskite/hole transport layer interface. The optimized CsPbI2 Br solar cells based on 2 D/3 D heterostructure exhibited power conversion efficiencies of 14.5% with improved humidity stability. To further increase the device stability, vertically-aligned quasi-2 D CsPbI3 solar cells were prepared by controlling the crystallization kinetics, and the variation law of phase purity, film morphology, and crystal orientation was revealed.

关键词： Perovskite solar cells 2D/3D heterostructure Stability CsPbI2Br perovskite flash-evaporation printing

来源： cnki会议评论

在线全文

cnki会议

学校读者我要写书评

暂无评论

全选清除本页清除全部题录导出标记到“检索档案”

共1页 << < 1 > >>

回到顶部

执行限定条件

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：