Chin. Phys. Lett.  2008, Vol. 25 Issue (3): 1091-1093    DOI:
Original Articles |
Performance Improvement of Bulk Heterojunction Organic Photovoltaic Cellby Addition of a Hole Transport Material
ZHANG Nan1;LIU Qian1;MAO Jie2,LIU Zun-Feng2;YANG Li-Ying1;YIN
Shou-Gen1;CHEN Yong-Sheng2
1Key Laboratory of Display Materials and Photoelectric Devices (Tianjin University of Technology), Ministry of Education , Institute of Material Physics, Tianjin University of Technology, Tianjin 3003842Key Laboratory for Functional Polymer Materials and Center for Nanoscale Science & Technology, Institute of Polymer Chemistry, College of Chemistry, Nankai University, Tianjin 300071
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ZHANG Nan, LIU Qian, MAO Jie et al  2008 Chin. Phys. Lett. 25 1091-1093
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Abstract A novel photovoltaic cell with an active layer of poly(phenyleneethynylene)
(PPE)/C60/N,N'-diphenyl-N,N'-di-(m-tolyl)-p-benzidine (TPD) is designed. In the active layer, PPE is the major component; C60 and TPD are the minor ones. Compared with a control BHJ device based on PPE/C60, the short circuit
current density Jsc is increased by 1 order of magnitude, and the whole device performance is increased greatly, however the open circuit voltage Voc is largely decreased. The possible mechanism of the improved performance may be as follows: In the PPE/C60/TPD device, PPE, C60, and TPD serve as the energy harvesting material, the electron transport material, and the hole
transport material, respectively. As the TPD and C60 are spatially separated by PPE, the charge recombination is effectively retarded.
Keywords: 73.50.Pz      72.40.+w     
Received: 08 October 2007      Published: 27 February 2008
PACS:  73.50.Pz (Photoconduction and photovoltaic effects)  
  72.40.+w (Photoconduction and photovoltaic effects)  
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https://cpl.iphy.ac.cn/       OR      https://cpl.iphy.ac.cn/Y2008/V25/I3/01091
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ZHANG Nan
LIU Qian
MAO Jie
LIU Zun-Feng
YANG Li-Ying
YINShou-Gen
CHEN Yong-Sheng
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