Interfacial engineering by using self-assembled monolayer in mesoporous perovskite solar cell

被引：78
作者：
Li, Bobo [1 ]
Chen, Yani [2 ]
Liang, Ziqi [2 ]
Gao, Deqing [1 ]
Huang, Wei [1 ]
机构：
[1] Nanjing Tech Univ NanjingTech, Inst Adv Mat, Key Lab Flexible Elect KLOFE, Jiangsu Natl Synergist Innovat Ctr Adv Mat SICAM, Nanjing 211816, Jiangsu, Peoples R China
[2] Fudan Univ, Dept Mat Sci, Shanghai 200433, Peoples R China
来源：
RSC ADVANCES | 2015年 / 5卷 / 114期
基金：
中国国家自然科学基金;
关键词：
PERFORMANCE; CH3NH3PBI3; EFFICIENT; TIO2; DEPOSITION; VOLTAGE; GROWTH; LAYERS;
D O I：
10.1039/c5ra17129f
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A self-assembled monolayer of 4-aminobenzoic acid (PABA) is prepared on the top of a mesoporous TiO2 electron transfer layer. Through the full characterization of PABA-SAM modified TiO2 and the above-prepared perovskite layer with Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), contact angle and photoluminescence, it was clear that the introduction of the SAM improved the interfacial compatibility and therefore the quality of the perovskite, thus leading to fewer traps, better carrier transport and good energy matching between the TiO2 layer and the perovskite layer. The power conversion efficiency (PCE) of the perovskite device with interfacial modification was enhanced to 10.58% compared with that of the device without SAM.
引用
收藏
页码：94290 / 94295
页数：6
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