High‐Efficiency Polymer Solar Cells Enhanced by Solvent Treatment
High‐Efficiency Polymer Solar Cells Enhanced by Solvent Treatment
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DOI:
10.1002/adma.201204306
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发表时间:
2013-03
影响因子:
29.4
通讯作者:
Huiqiong Zhou;Y. Zhang;J. Seifter;Samuel D. Collins;Chan Luo;G. Bazan;Thuc‐Quyen Nguyen;A. Heeger
中科院分区:
文献类型:
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作者:
Huiqiong Zhou;Y. Zhang;J. Seifter;Samuel D. Collins;Chan Luo;G. Bazan;Thuc‐Quyen Nguyen;A. Heeger
A significant enhancement of efficiency in thieno[3,4-b]-thiophene/benzodithiophene:[6,6]-phenyl C71-butyric acid methyl ester (PTB7:PC70 BM) solar cells can be achieved by methanol treatment. The effects of methanol treatment are shown in an improvement of built-in voltage, a decrease in series resistance, an enhanced charge-transport property, an accelerated and enlarged charge extraction, and a reduced charge recombination, which induce a simultaneous enhancement in open-circuit voltage (Voc), short-circuit current (Jsc), and fill factor (FF) in the devices.