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题名: Influence of PC60BM or PC70BM as electron acceptor on the performance of polymer solar cells
作者: Zhang, Fujun1;  Zhuo, Zuliang1;  Zhang, Jian2;  Wang, Xin1;  Xu, Xiaowei1;  Wang, Zixuan1;  Xin, Yusheng1;  Wang, Jian1;  Wang, Jin1;  Tang, Weihua3;  Xu, Zheng1;  Wang, Yongsheng1
关键词: P3HT ;  PC70BM ;  PC60BM ;  Photon harvesting ;  Power conversion efficiency
刊名: SOLAR ENERGY MATERIALS AND SOLAR CELLS
发表日期: 2012-02-01
DOI: 10.1016/j.solmat.2011.09.006
卷: 97, 页:71-77
收录类别: SCI ;  ISTP
文章类型: Article
WOS标题词: Science & Technology ;  Technology ;  Physical Sciences
类目[WOS]: Energy & Fuels ;  Materials Science, Multidisciplinary ;  Physics, Applied
研究领域[WOS]: Energy & Fuels ;  Materials Science ;  Physics
英文摘要: Two series of P3HT-based polymer solar cell (PSCs) only with different electron acceptors PC70BM or PC60BM were investigated under the same conditions. The PSCs with PC70BM as the electron acceptor exhibit a relatively strong and broad absorption in the visible range and high external quantum efficiency, which results in a relatively high open circuit voltage (V-oc) of 0.62 V. short circuit current density (J(sc)) of 11.85 mA/cm(2) and power conversion efficiency (PCE) of 3.52%. The PSCs with PC60BM as the electron acceptor have a relatively low V, of 0.58 V, J(sc) of 10.68 mA/cm(2) and PCE of 3.02% due to the weak absorption of PC60BM in the visible light range. The function of PC70BM instead of PC60BM as electron acceptor could be summarized as follows: i) the strong absorption PC70BM in the visible range results in much more photon harvesting; ii) the relatively low electron mobility and relatively big size of PC70BM molecule influences the charge transporting and phase separation. The ultimate performances of PSCs are codetermined by the photon harvesting, exciton dissociation, charge carrier transport and collection. (C) 2011 Elsevier B.V. All rights reserved.
关键词[WOS]: PHOTOVOLTAIC CELLS ;  POLY(3-HEXYLTHIOPHENE) ;  METHANOFULLERENE ;  DEGRADATION ;  IMPROVEMENT ;  FULLERENES ;  MORPHOLOGY ;  BLENDS ;  WATER
语种: 英语
WOS记录号: WOS:000300653800011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138042
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Beijing Jiaotong Univ, Minist Educ, Key Lab Luminescence & Opt Informat, Beijing 100044, Peoples R China
2.Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.Nanjing Univ Sci & Technol, Minist Educ, Key Lab Soft Chem & Funct Mat, Nanjing 210094, Jiangsu, Peoples R China

Recommended Citation:
Zhang, Fujun,Zhuo, Zuliang,Zhang, Jian,et al. Influence of PC60BM or PC70BM as electron acceptor on the performance of polymer solar cells[J]. SOLAR ENERGY MATERIALS AND SOLAR CELLS,2012,97:71-77.
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