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Performance Characteristics of p-i-n type Organic Thin-film Photovoltaic Cell with Rubrene:CuPc Hole Transport Layer  

Kang, Hak-su (Department of chemical Engineering, Pusan National University)
Hwang, Jongwon (Department of chemical Engineering, Pusan National University)
Kang, Yongsu (Department of chemical Engineering, Pusan National University)
Lee, Hyehyun (Department of chemical Engineering, Pusan National University)
Choe, Youngson (Department of chemical Engineering, Pusan National University)
Publication Information
Korean Chemical Engineering Research / v.48, no.5, 2010 , pp. 654-659 More about this Journal
Abstract
We have investigated the effect of rubrene-doped CuPc hole transport layer on the performance of p-i-n type bulk hetero-junction photovoltaic device with a structure of ITO/PEDOT:PSS/CuPc: rubrene/CuPc:C60(blending ratio 1:1)/C60/BCP/Al and have evaluated the current density-voltage(J-V) characteristics, short-circuit current($J_{sc}$), open-circuit voltage($V_{oc}$), fill factor(FF), and energy conversion efficiency(${\eta}_e$) of the device. By rubrene doping into CuPc hole transport layer, absorption intensity in absorption spectra decreased. However, the performance of p-i-n organic type bulk hetero-junction photovoltaic device fabricated with crystalline rubrene-doped CuPc was improved since rubrene shows higher bandgap and hole mobility compared to CuPc. Increased injection currents have effected on the performance improvement of the present device with energy conversion efficiency(${\eta}_e$) of 1.41%, which is still lower value compared to silicone solar cell and many efforts should be made to improve organic photovoltaic devices.
Keywords
CuPc; Rubrene; Photovoltaic Cell; Energy Conversion Efficiency;
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Times Cited By KSCI : 1  (Citation Analysis)
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