Unique Gold Nanorods Embedded Active Layer Enabling Strong Plasmonic Effect To Improve the Performance of Polymer Photovoltaic Devices

被引：32

作者：

Liu, Chunyu ^{[1
]}

Zhao, Chaoyang ^{[2
]}

Zhang, Xulin ^{[1
]}

Guo, Wenbin ^{[1
]}

Liu, Kun ^{[2
]}

Ruan, Shengping ^{[1
]}

机构：

[1] Jilin Univ, Coll Elect Sci & Engn, State Key Lab Integrated Optoelect, 2699 Qianjin St, Changchun 130012, Peoples R China

[2] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, 2699 Qianjin St, Changchun 130012, Peoples R China

来源：

JOURNAL OF PHYSICAL CHEMISTRY C | 2016年 / 120卷 / 11期

基金：

中国国家自然科学基金;

关键词：

ORGANIC SOLAR-CELLS; HIGH-EFFICIENCY; AG NANOPARTICLES; ENHANCEMENTS; TRANSPORT; GROWTH; HOLE; BAND;

D O I：

10.1021/acs.jpcc.6b00459

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

It has been widely reported that plasmonic effects of metallic nanomaterials can enhance light-harvesting in polymer solar cells (PSCs). However, the improved light trapping degree is closely related to the shape of the nanoparticles (NPs), which inevitably limits the efficiency enhancement for PSCs. In this paper, we demonstrate that the incorporation of Au arrowhead nanorods (AHNRs) into the active layer of inverted PSCs can dramatically lead to a 28.7% efficiency enhancement as compared to preoptimize control PSCs. Both theoretical and experimental results show that the origin of the improved power conversion efficiency (PCE) can be attributed to not only the optical absorption enhancement but also charge transport capacity improvement. The metal tip of AHNRs can lead to a significant enhancement of local field and long-range scattering. In addition, a wide-band absorption improvement is observed, and charge carrier mobilities increase by an order of magnitude. These results offer an effective approach to enhance the efficiency for PSCs.

引用

页码：6198 / 6205

页数：8

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