Optical properties and electronic structures of sexithiophene

摘要：

The optical properties and electronic structures of an organic semiconductor sexithiophene have been investigated with ultraviolet-visible spectroscopy, cw photospectroscopy and time-resolved photospectroscopy, respectively. Sexithiophene in dilute tetrahydrofuran solutions can absorb photons at 400 nm while it can give off strong green photoluminescence at 550 nm under the excitation of 325 nm ultraviolet light. With the assistance of calculated electronic structures and pump-and-probe characterization, our results indicate that both the optical absorption and the light emission of the sexithiophene are controlled by the p-conjugation of the oligothiophene.

关键词： Sexithiophene Optical absorption Photoluminescence Time-resolved photoluminescence Lifetime Electronic structure

作者: Bao-gai Zhai Yuan Ming Huang

作者单位: Modern Educational Technology Center, Yunnan Normal University, Yunnan 650092, China College of Physics & Electronic Information, Yunnan Normal University, Yunnan 650092, China

会议类型: 国际会议

会议名称: 2009 International Symposium on Liquid Crystal Science and Technology(2009国际液晶科技研讨会)

会议地点: 昆明

会议语种:英文

页码: 475-478

在线出版日期: 2009-08-02（万方平台首次上网日期，不代表论文的发表时间）