Plasmon-enhanced polymer bulk heterojunction solar cells with solution-processable Ag nanoparticles

• Published in: Optoelectronics letters Vol. 7; no. 6; pp. 410 - 414
• Main Author: 闫齐齐 秦文静 王超 宋朋飞 丁国静 杨利营 印寿根
• Format: Journal Article
• Language: English
• Published: Heidelberg Tianjin University of Technology 01.11.2011
• Subjects: AGNPS; Ag纳米粒子; Lasers; Optical Devices; Optics; Photonics; Physics; Physics and Astronomy; 增强聚合物; 太阳能电池; 异质结; 散装; 细胞; 表面等离子体; Power Conversion Efficiency; Photoactive Layer; Plasmon Resonance Peak; Solar Cell; Organic Solar Cell
• ISSN: 1673-1905; 1993-5013
• DOI: 10.1007/s11801-011-1059-y

We report the plasmon-enhanced polymer bulk-heterojunction solar cells with Ag nanoparticles （AgNPs） obtained via chemical method. Here, the AgNPs films with different particle densities are introduced between the poly （3,4-ethylene dioxythiophene） poly （styrenesulfonate） （PEDOT： PSS） buffer layer and the poly （3-hexythiophene）：[6,6]-phenyl-C61 butyric acid methyl ester （P3HT： PCBM） layer. By improving the optical absorption of the active layer owing to the localized surface plasmons, the power conversion efficiency of the solar cells is increased compared with the control device. It is shown that the efficiency of the device increases with the density of AgNPs. For the device employing higher density, the resulted power conversion efficiency is found to increase from 2.89% to 3.38%, enhanced by 16.96%.