Enhanced performance in organic photovoltaic devices with a KMnO4 solution treated indium tin oxide anode modification |
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Authors: | Yang Qian-Qianab Zhao Su-Lingab Xu Zhengab Zhang Fu-Junab Yan Guangab Kong Chaoab Fan Xingab Zhang Yan-Feiab and Xu Xu- |
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Affiliation: | [1]Key Laboratory of Luminescence and Optical Information (Beijing Jiaotong University), Ministry of Education, Beijing 10004,1, China; [2]Institute of Optoelectronics Technology, Beijing Jiaotong University, Beijing 100044, China |
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Abstract: | The properties of poly(3-hexylthiophene):(6,6)-phenyl C61 butyric acid methyl ester(P3HT:PCBM) organic photovoltaic devices(OPVs) with an indium tin oxide(ITO) anode treated by a KMnO4 solution are investigated.The optimized KMnO4 solution has a concentration of 50 mg/L,and ITO is treated for 15 min.The modification of ITO anode results in an enhancement of the power conversion efficiency(PCE) of the device,which is responsible for the increase of the photocurrent.The performance enhancement is attributed to the work function modification of the ITO substrate through the strong oxygenation of KMnO4,and then the charge collection efficiency is improved. |
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Keywords: | organic photovoltaic devices indium tin oxide anode modification KMnO4 |
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