Increasing the Fill Factor and Power Conversion Efficiency of Polymer Photovoltaic Cell Using V2O5/CuPc as a Buffer Layer
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概要
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In this study, we investigated the high fill factor (FF) and high power conversion efficiency (PCE) of organic photovoltaic (OPV) cells using a dual hole-transporting layer (HTL) of vanadium oxide (V2O5)/copper phthalocyanine (CuPc) as a buffer layer. The OPV cell configuration consists of indium tin oxide (ITO)/V2O5/CuPc/poly(3-hexylthiophene) (P3HT):phenyl C61-butyric acid methylester (PCBM)/LiF/Al. The FF and PCE of the device with a V2O5/CuPc buffer layer are approximately threefold and tenfold, respectively, greater than those of a conventional device without the buffer layer. The FF and PCE of the device are 62.2 and 2.11%, respectively, under a simulated AM1.5G illumination of 100 mW/cm2. The increased PCE and FF of the device are obtained using a V2O5/CuPc buffer layer, which is attributed to the stepwise hole-transporting configuration and the increased optical absorption from the anode.
- 2010-04-25
著者
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SU Shui-Hsiang
Department of Electronic Engineering
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CHIANG Wang-Ta
Department of Electronic Engineering, I-Shou University
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Yan-Fu Lin
Department of Electronic Engineering, I-Shou University, Kaohsiung County, Taiwan 840, R.O.C.
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Lin Yan-Fu
Department of Electronic Engineering, I-Shou University, Kaohsiung County 840, Taiwan, R.O.C
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Wang-Ta Chiang
Department of Electronic Engineering, I-Shou University, Kaohsiung County, Taiwan 840, R.O.C.
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Shui-Hsiang Su
Department of Electronic Engineering, I-Shou University, Kaohsiung County, Taiwan 840, R.O.C.
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Meiso Yokoyama
Department of Electronic Engineering, I-Shou University, Kaohsiung County, Taiwan 840, R.O.C.
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Meiso Yokoyama
Department of Electronic Engineering, I-Shou University, Kaohsiung County 840, Taiwan, Republic of China
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