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Enhancement of photovoltaic performance by two-step dissolution processed photoactive blend in polymer solar cells
被引:6
|作者:
Hu, Rong
[1
]
Cheng, Jiang
[1
]
Ni, Haitao
[1
]
Zhu, Jiang
[1
]
Liu, Hongdong
[1
]
Zhang, Wei
[2
]
Liu, Yurong
[1
]
Li, Lu
[1
]
Guo, Chaozhong
[1
]
Zheng, Kaibo
[2
,3
]
机构:
[1] Chongqing Univ Arts & Sci, Res Inst New Mat Technol, Chongqing 402160, Peoples R China
[2] Lund Univ, Div Phys Chem, S-22100 Lund, Sweden
[3] Qatar Univ, Coll Engn, Gas Proc Ctr, POB 2713, Doha, Qatar
基金:
中国国家自然科学基金;
关键词:
polymer solar cells;
photoactive layer;
two-step dissolution;
power conversion efficiency;
SELF-ORGANIZATION;
MORPHOLOGY;
EFFICIENCY;
POLY(3-HEXYLTHIOPHENE);
D O I:
10.1007/s40843-016-5128-0
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
based on poly(3-hexylthiophene):[6,6]-phenyl-C-61-butyric acid methyl ester (P3HT:PC61BM) and polythieno[3,4-b]-thiophene-co-benzodithiophene:[6,6]-phenyl-C-71-butyric acid methyl ester (PTB7:PC71BM) photovoltaic systems, by a two-step dissolution treatment of photoactive blends. Optical and morphological characterization revealed that the composition of the ordered polymer and donor/acceptor phase structure in the photoactive layer can be optimized using a two-step dissolution treatment. In addition, time-resolved photoluminescence indicated that exciton dissociation efficiency could be increased using this method. Current density-voltage (J-V) measurements showed that power conversion efficiencies (PCE) of the two-step dissolution treated devices were higher than those of one-step treated devices by 24% and 8% for P3HT:PC61BM and PTB7:PC71BM systems, respectively. Therefore, this two-step dissolution treatment further optimizes the performance of polymer solar cells.
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页码:842 / 850
页数:9
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