Structure, Optical Absorption, and Performance of Organic Solar Cells Improved by Gold Nanoparticles in Buffer Layers

被引：27
作者：
Yang, Yingguo [1 ,2 ]
Feng, Shanglei [1 ]
Li, Meng [3 ]
Wu, Zhongwei [3 ]
Fang, Xiao [3 ]
Wang, Fei [1 ]
Geng, Dongping [1 ]
Yang, Tieying [1 ,2 ,4 ]
Li, Xiaolong [1 ,2 ]
Sun, Baoquan [3 ]
Gao, Xingyu [1 ,2 ,4 ]
机构：
[1] Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
[2] Chinese Acad Sci, SSRF, Shanghai Inst Appl Phys, Shanghai 201204, Peoples R China
[3] Soochow Univ, Jiangsu Key Lab Carbon Based Funct Mat & Devices, Inst Funct Nano & Soft Mat FUNSOM, 199 Renai Rd, Suzhou 215123, Peoples R China
[4] Shanghai Inst Mat Genome, Shanghai 200444, Peoples R China
来源：
ACS APPLIED MATERIALS & INTERFACES | 2015年 / 7卷 / 44期
基金：
中国国家自然科学基金;
关键词：
MUA-stabilized gold nanoparticles; P3HT; GIXRD; microstructure; organic photovoltaic device; power conversion efficiency; SELF-ORGANIZATION; FILL FACTOR; POLYMER; FULLERENE; MORPHOLOGY; POLY(3-HEXYLTHIOPHENE); POLYTHIOPHENE; EFFICIENCY;
D O I：
10.1021/acsami.5b07983
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
11-Mercaptoundecanoic acid (MUM-stabilized gold nanoparticles (AuNPs) embedded in copper phthalocyanine (CuPc) were used as a buffer layer between a poly(3-hexyl-thiophene) (P3HT)/[6,6]-phenyl C61-butyric acid methyl ester (PCBM) bulk heterojunction and anodic indium-tin oxide (ITO) substrate. As systematic synchrotron-based grazing incidence X-ray diffraction (GIXRD) experiments demonstrated that the AuNPs present in the buffer layer can improve the microstructure of the active layer with a better lamella packing of P3HT from the surface to the interior, UV-visible absorption spectrum measurements revealed enhanced optical absorption due to the localized surface plasma resonance (LSPR) generated by the AuNPs. The device of ITO/poly(3,4-ethylenedioxythiophene) :polystyrenesulfonate/CuPc:MUA-stabilized AuNPs/P3HT:PCBM/LiF/Al was found with over 24% enhancement of power conversion efficiency (PCE) in comparison with reference devices without AuNPs. This remarkable improvement in PCE should be partially attributed to LSPR generated by the AuNPs and partially to improved crystallization as well as preferred orientation order of P3HT due to the presence of the AuNPs, which would promote more applications of metal NPs in the organic photovoltaic devices and other organic multilayer devices.
引用
收藏
页码：24430 / 24437
页数：8
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