Analysis on the mechanism of photoluminescence quenching in π-conjugated polymers in photo-oxidation process with broadband transient grating

作者：Wang, Ying-hui; Peng, Ya-jing; Mo, Yue-qi; Yang, Yan-qiang^*; Zheng, Xian-xu

来源：Applied Physics Letters, 2008, 93(23): 231902.

DOI：10.1063/1.3045953

• optical polymers
• organic semiconductors
• oxidation
• photoluminescence
• polymers
• radiation quenching

Photoinduced oxidation process of poly[2-methoxy-5-(2(')-ethyl-hexyloxy)-1,4-phenylene vinylene] is probed by using broadband transient grating technique. The results suggest that the damage of bonds in the side and main chains leads to the line shape variation and efficiency decreasing of luminescence in photoluminescence quenching, and their temporal evolution and damage rates are found to vary with molecular energy states.

• 出版日期2008-12-8
• 单位中国工程物理研究院; 哈尔滨工业大学; 中国工程物理研究院流体物理研究所; 华南理工大学