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
Performance Improvement of Bulk Heterojunction Organic Photovoltaic Cellby Addition of a Hole Transport Material
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
摘要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.
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.
ZHANG Nan;LIU Qian;MAO Jie;LIU Zun-Feng;YANG Li-Ying;YINShou-Gen;CHEN Yong-Sheng. Performance Improvement of Bulk Heterojunction Organic Photovoltaic Cellby Addition of a Hole Transport Material[J]. 中国物理快报, 2008, 25(3): 1091-1093.
ZHANG Nan, LIU Qian, MAO Jie, LIU Zun-Feng, YANG Li-Ying, YINShou-Gen, CHEN Yong-Sheng. Performance Improvement of Bulk Heterojunction Organic Photovoltaic Cellby Addition of a Hole Transport Material. Chin. Phys. Lett., 2008, 25(3): 1091-1093.
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2008, Vol. 25 
