钝化
化学
卤化物
纳米晶
X射线光电子能谱
配体(生物化学)
太阳能电池
吸附
无机化学
异质结
光化学
纳米技术
化学工程
物理化学
光电子学
材料科学
有机化学
受体
工程类
生物化学
图层(电子)
作者
Yun Xiao,Hongmei Wang,Fumiyasu Awai,Naoyuki Shibayama,Takaya Kubo,Jotaro Nakazaki,Hiroshi Segawa
出处
期刊:Chemistry Letters
[The Chemical Society of Japan]
日期:2022-10-05
卷期号:51 (10): 1004-1007
摘要
The carrier transport properties of solar cells fabricated with colloidal AgBiS2 nanocrystals (NCs) are affected by the type of ligands adsorbed on the nanoparticle surface, the coverage, and the coordination state. We focus on halide ions (F−, Cl−, Br−, and I−) to passivate the surface of AgBiS2 NCs and investigate their adsorption behavior using X-ray photoelectron spectroscopy (XPS) in this study. The adsorption strength of ligands was a useful figure of merit that could explain the correlation between the ligand type and solar cell performance. The Br ligand achieved the best NC passivation among the four halide ligands. Therefore, the cell with a Br ligand shows the highest solar cell performance.
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