General Method To Define the Type of Carrier Transport Materials for Perovskite Solar Cells via Kelvin Probes Microscopy
General Method To Define the Type of Carrier Transport Materials for Perovskite Solar Cells via Kelvin Probes Microscopy
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通过开尔文探针显微镜定义钙钛矿太阳能电池载流子传输材料类型的通用方法
DOI：
10.1021/acsaem.8b00687
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发表时间：
2018-07
影响因子：
6.4
通讯作者：
Zhubing He
中科院分区：
文献类型：
--
作者：
Yinghui Wu;Wei Chen;Yi Lin;Bao Tu;Xiaoqi Lan;Zhenggang Wu;Ruchuan Liu;Aleks;ra B Djurišić;Zhubing He
各种有机和无机半导体材料是钙钛矿太阳能电池（PSCs）的有效电子或空穴输运材料。然而，除了研究它们在最终光伏器件中的作用外，很少报道它们的直接作用。本文通过扫描开尔文探针显微镜，采用一种通用而简便的方法，确定了psc中SnO2和NiO两种常用电荷输运材料转移的载流子类型。测量到的表面电位电压的增量符号直接告诉了这些载流子输运材料是提取了电子还是空穴，它的映射也可以提供晶粒内部和晶界之间的提取差异。MAPbI3和CsFAMA三阳离子钙钛矿均参与了实验，结论一致。利用时间分辨光致发光技术，可以区分各种物质的提取率。这项工作无疑为我们提供了一个…
Various kinds of semiconductor materials, organic and inorganic, served effectively as electrons or holes transport materials for perovskite solar cells (PSCs). However, their direct function has rarely been reported other than examining their effect in the final photovoltaic devices. In this work, a general and facile method was employed to determine to a point the type of carriers transferred by both SnO2 and NiO popular charge transport materials in PSCs via scanning Kelvin probes microscopy. The sign of the increment of the surface potential voltage measured tells directly whether electrons or holes were extracted by these carrier transport materials while its mapping can also provide the extraction difference between grain interiors and grain boundaries. Both MAPbI3 and CsFAMA triple cation perovskites were involved in the test with the same conclusion. Along with time-resolved photoluminescence, the extraction rate of each kind of material can be distinguished. This work definitely offers us a gener...
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影响因子：
16.6
作者：
Bergmann, Victor W.;Weber, Stefan A. L.;Berger, Ruediger
通讯作者：
Berger, Ruediger
影响因子：
29.4
作者：
Nie, Wanyi;Tsai, Hsinhan;Mohite, Aditya D.
通讯作者：
Mohite, Aditya D.
影响因子：
10.8
作者：
Chiesa, M;B端rgi, L;Sirringhaus, H
通讯作者：
Sirringhaus, H
影响因子：
17.1
作者：
Xie, Jiangsheng;Huang, Kun;Yang, Deren
通讯作者：
Yang, Deren
以纳米级分辨率探测钙钛矿太阳能电池中的光电压和光电流
影响因子：
19
作者：
Zhao Zhenxuan;Chen Xiangyu;Wu Huaqiang;Wu Xiaoming;Cao Guozhong
通讯作者：
Cao Guozhong