Analysis of hybrid donor layer in organic solar cells based on SubPc and rubrene |
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| Authors: | Deng Ming Zhong Jian Gan Fengyu Cheng Hongxue Wang Lijuan |
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| Institution: | 1. State Key Laboratory of Electronic Thin Films and Integrated Devices, School of Optoelectronic Information, University of Electronic Science and Technology of China (UESTC), Chengdu, 610054, P. R. China
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| Abstract: | In this paper, photovoltaic characteristics of ITO/PEDOT:PSS/SubPc:Rubrene (mixed ratio R by weight)/C60/Bphen/Ag organic solar cells (OSCs) are analyzed in detail. The intrinsic properties of a SubPc:rubrene doped layer on device performance were discussed based on theoretical analysis of the experimental OSCs. The ratio R was 0, 0.25, 0.5, and 0.75,1, respectively. The results showed that when R was 0.75 performing the best, which owned the highest short circuit current (J sc ) 6.61 mA/cm2 and highest power conversion efficiency (PCE) 2.44%, the FF was 41% and the open circuit current (V oc ) was 0.905 V. The suitable HOMO level, absorption capacity, carrier transport ability and exciton diffusion length (L D ) of organic material are very important for the performance of the device. |
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