有机化学 ›› 2014, Vol. 34 ›› Issue (11): 2370-2375.DOI: 10.6023/cjoc201405029 上一篇    下一篇

研究简报

有机半导体材料聚(3-己基噻吩)及[6,6]-苯基-C60丁酸甲酯在氯苯溶液中粒径研究

李晨希a, 董兵超b, 李萌a, 王金淼a, 蔡雯君a, 牛贺莹a, 马恒a   

  1. a 河南师范大学物理与电子工程学院 新乡 453007;
    b 新乡医学院应用物理研究室 新乡 453003
  • 收稿日期:2014-05-20 修回日期:2014-06-23 出版日期:2014-11-25 发布日期:2014-07-03
  • 通讯作者: 马恒,hengma@henannu.edu.cn E-mail:hengma@henannu.edu.cn
  • 基金资助:

    国家自然科学基金(No.11074066)资助项目.

Research on Particle Size of Organic Semiconductor Materials Poly(3-hexylthiophene) and [6,6]-Phenyl-C60-butyric Acid Methyl Ester in Chlorobenzene Solution

Li Chenxia, Dong Bingchaob, Li Menga, Wang Jingmiaoa, Cai Wenjuna, Niu Heyinga, Ma Henga   

  1. a College of Physics and Electronic Engineering, Henan Normal University, Xinxiang 453007;
    b Institute of Applied Physics, Xinxiang Medical University, Xinxiang 453007
  • Received:2014-05-20 Revised:2014-06-23 Online:2014-11-25 Published:2014-07-03
  • Supported by:

    Project supported by the National Natural Science Foundation of China (No.11074066).

以聚(3-己基噻吩)(P3HT)为电子给体, [6,6]-苯基-C60丁酸甲酯(PCBM)为电子受体材料, 制备了不同浓度活性层材料(P3HT:PCBM)的聚合物太阳能电池. 通过对比电池性能参数, 活性层表面形貌, 进一步分析了氯苯溶剂中有机半导体材料的分散规律, 并讨论了溶液温度和浓度对溶质粒径的影响, 以及粒径大小对器件性能的影响. 结果表明, 溶液中溶质直径在4000 nm左右的粒子占有较大比例, 溶液的浓度和温度对溶液中粒子的粒径有明显的影响, 浓度较低时, 溶质粒径受温度影响较大. 相反, 温度对高浓度溶液中的溶质粒径的影响作用减小. 溶液浓度为12.67 mg/mL时, 分散效果最好, 具有最优的填充因子, 浓度为19.00 mg/mL时, 具有最优的短路电流和能量转换效率.

关键词: 聚合物, 氯苯, 粒径, 有机太阳能电池, P3HT:PCBM

The mixture of organic semiconductor electron donor poly(3-hexylthiophene) (P3HT) and acceptor [6,6]-phenyl- C60-butyric acid methyl ester (PCBM) is dissolved in chlorobenzene for measuring the solute particle diameter. By comparing the performance of solar cells and the surface morphology of the active layer, the dispersion law of the mixed solutes in chlorobenzene is analyzed. The influence of temperature and concentration on particle size, furthermore, the impact of particle size on device performance are discussed. The results show that most of the particle sizes in the solution are populated at about 4000 nm, and both the concentration and the temperature of the solution have a significant effect on the particle size of the solution. For low concentration solution, the particle sizes are greatly influenced by temperature. On the contrary, the effect of temperature on the particle size in the solution concentration is less apparent when the concentration becomes higher. When the solution concentration reaches 12.67 mg/mL, it has a preferably dispersion and optimal fill factor. When the concentration reaches 19.00 mg/mL, the solar cell made by the solution shows a well property on power conversion efficiency and short-circuits current.

Key words: polymer, chlorobenzene, particle size, organic solar cells, P3HT:PCBM