Improving the Light Trapping Efficiency of Plasmonic Polymer Solar Cells through Photon Management
详细信息 查看全文
- 作者：Yu-Sheng Hsiao ; Shobhit Charan ; Feng-Yu Wu ; Fan-Ching Chien ; Chih-Wei Chu ; Peilin Chen ; Fang-Chung Chen
- 刊名：The Journal of Physical Chemistry C
- 出版年：2012
- 出版时间：October 4, 2012
- 年：2012
- 卷：116
- 期：39
- 页码：20731-20737
- 全文大小：522K
- 年卷期：v.116,no.39(October 4, 2012)
- ISSN：1932-7455
文摘
In this study, we have explored how light trapping efficiency can be enhanced by using gold nanoparticles (Au NPs) of various sizes and shapes on the front of polymer solar cells (PSCs) with the active layer鈥攂lends of poly(3-hexyl thiophene) and [6,6]-phenyl-C61-butyric acid methyl ester. The light-concentrating behavior was enhanced after we had incorporated gold nanospheres or nanorods into the anodic buffer layer [based on poly(3,4-ethylenedioxythiophene):polystyrenesulfonate] to trigger various localized surface plasmon resonance (LSPR) bands. Comparison of the optical characteristics and the performance of the PSCs prepared with and without Au NPs, and we found that the UV鈥搗is and wavelength-dependent photoluminescent spectral data corroborated with the device performance due to the photon management by considering the light scattering and LSPR effects at the active layer. The presence of Au NPs increased the power conversion efficiency to approximately 4.3% (an enhancement of 24%).