物理化学学报 >> 2008, Vol. 24 >> Issue (05): 905-908.doi: 10.3866/PKU.WHXB20080530

研究简报 上一篇    下一篇

热处理对P3HT与PCBM共混体系光电性能的影响

於黄忠; 彭俊彪   

  1. 华南理工大学物理科学与技术学院, 广州 510640; 华南理工大学高分子光电材料及器件研究所, 特种功能材料教育部重点实验室, 广州 510640
  • 收稿日期:2008-01-14 修回日期:2008-02-25 发布日期:2008-05-05
  • 通讯作者: 於黄忠 E-mail:hzhyu@scut.edu.cn

Annealing Treatment Effect on Photoelectric Properties of P3HT:PCBMBlend System

YU Huang-Zhong; PENG Jun-Biao   

  1. School of Physics, South China University of Technology, Guangzhou 510640, P. R. China; 2Key Laboratory of Specially Functional Materials, Ministry of Education, Institute of Polymer Optoelectronic Materials and Devices, South China University of Technology, Guangzhou 510640, P. R. China
  • Received:2008-01-14 Revised:2008-02-25 Published:2008-05-05
  • Contact: YU Huang-Zhong E-mail:hzhyu@scut.edu.cn

摘要: 从紫外-可见光谱(UV-Vis)、光致发光谱(PL)、X射线衍射(XRD)图及太阳电池性能等方面, 分析了热处理对聚噻吩P3HT(poly(3-hexylthiophene))与C60的衍生物PCBM([6,6]-phenyl C61-butyric acid methyl ester)共混体系光电性能的影响. 紫外可见光谱表明,热处理使P3HT颐PCBM 共混体系所成膜的吸收峰增强并红移. 光致发光谱及X-射线衍射图表明, 热处理使其光谱峰及衍射峰增强. 以P3HT 为电子给体材料, PCBM为电子受体材料, 制成了共混体系太阳电池. 热处理使得器件性能大幅度提高. 其热处理光电池在100 mW·cm-2 强度光照下, 开路电压Voc为0.55 V,短路电流密度Jsc为9.87 mA·cm-2, 填充因子FF为60.1%,能量转换效率浊为3.26%.

关键词: 热处理, 聚合物, 光电性能, 共混体系

Abstract: The effect of annealing treatment on the photoelectric properties of poly(3-hexylthiophene) (P3HT):[6,6]-phenyl-C61-butyric acid methyl ester (PCBM) was analyzed by UV-Vis absorption spectroscopy, photoluminescence (PL) spectroscopy, X-ray diffraction, and solar cell performance. The UV-Vis absorption peaks of P3HT:PCBM thin filmshowed enhancement and a red-shift after thermal annealing. PL and XRD peak intensities increased by annealing treatment. A solar cell based on the blend of P3HT:PCBM was fabricated, and the device performance was significantly improved by thermal annealing. For devices heat-treated at 130 益, open circuit voltage of 0.55 V, short circuit current density of 9.87 mA·cm-2, fill factor of 60.1% and power conversion efficiency (PCE) of 3.26% were achieved under 100 mW·cm-2 air-mass 1.5 solar simulator illumination.

Key words: Annealing treatment, Polymer, Photoelectric properties, Blend system

MSC2000: 

  • O644