基于苯并二噻吩单元的窄带系D—A共聚物太阳能电池材料的合成及器件测试 |
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引用本文: | 夏本正,张建伟,余希林.基于苯并二噻吩单元的窄带系D—A共聚物太阳能电池材料的合成及器件测试[J].中国材料科技与设备,2014(2):47-50. |
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作者姓名: | 夏本正 张建伟 余希林 |
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作者单位: | [1]青岛大学化学化工与环境学院,山东青岛266071 [2]陕西省纺织科学研究所,陕西西安710038 |
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基金项目: | 国家自然科学基金资助项目(21207073) |
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摘 要: | 用Stille聚合法合成了基于4,8-二(2,3-二已基噻吩)苯并1,2-b:4,5-b’]二噻吩(BDTT)和噻吩并3,4-c]吡咯-4,6-二酮(TPD)单元的窄带系D-A共聚物PBDTT-LTPD-M,其主链内受体单元的密度增加,具有较低的HOMO能级(-5.50eV)。用于聚合物太阳能电池中,使电池的开路电压(Voc)达到0.87V,器件的短路电流(Jsc)为6.07mA/cm^2,填充因子(FF)50.22%,光电转换效率(PCE)为2.67%。
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关 键 词: | D-A共聚物 太阳能电池 高Voc |
The Synthesis and Device Characterization of a D-A Copolymer Polymer Solar Cells Materials Based on Benzodithiophene |
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Affiliation: | XIA Ben-zheng, ZHANG Jian-wei, SHE Xi-lin(1. College of Chemical and Environmental Engineering, Qingdao University, Shandong , Qingdao , 266071, China; 2. Shanxi institute of textile Science, Shanxi, Xi'an, 710038, China) |
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Abstract: | A new D-A copolymer PDBIT-LTPD-M based on 4, 8-Bis (5- (2-ethylhexyl) thiophen-z-yl) benzo 1, 2-b; 4, 5-b'] dithiophene (EDIT) and bis-thieno 3, 4-c] pyrrole-d , 6-dione (TPD) were synthesized by stille coupling reaction. The HOMO level of this polymer is low (-5. 5eV) for the increase of the acceptor unit. As a result, the Voc of the polymer solar cells reaches up to o. 87V. The Jsc is 6. 07mA/ cm^2, the FF 50. 22 % and the PCE is 2. 67 %. |
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Keywords: | D-A copolymer Polymer solar cells High Voc |
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