Employing Easily Prepared Carbon Nanoparticles To Improve Performance of Inverted Organic Solar Cells

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• 作者：Xinyuan Zhang ; Zhiqi Li ; Zhihui Zhang ; Chunyu Liu ; Jinfeng Li ; Wenbin Guo ; Songnan Qu
• 刊名：ACS Sustainable Chemistry & Engineering
• 出版年：2016
• 出版时间：April 4, 2016
• 年：2016
• 卷：4
• 期：4
• 页码：2359-2365
• 全文大小：524K
• ISSN：2168-0485

文摘

In this paper, we demonstrate that the efficiency of P3HT:ICBA blend -based organic solar cells (OSCs) was dramatically enhanced by introducing carbon nanoparticles (CNPs) into the active layer. At the optimal doping concentration, the power conversion efficiency (PCE) of doped devices was increased from 4.12% up to 5.90%, accounting for a 43.20% PCE enhancement. CNPs serve as scattering centers to enlarge the light pathways, resulting in light-harvesting improvements. Meanwhile, the incorporation of CNPs in P3HT:ICBA blend can form a perfect homogeneous interpenetrating network, which is beneficial to improve exciton dissociation, charge transport, charge collection, and the photoconductive property of solar cells. This study establishes an efficient method for fabricating high-performance OSCs based on commercially available donor and acceptor materials.