Synthesis of Ladder-Type Thienoacenes and Their Electronic and Optical Properties
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- 作者：Tianyue Zheng ; Zhengxu Cai ; Rosina Ho-Wu ; Sung Hei Yau ; Valerii Shaparov ; Theodore Goodson III ; Luping Yu
- 刊名：Journal of the American Chemical Society
- 出版年：2016
- 出版时间：January 27, 2016
- 年：2016
- 卷：138
- 期：3
- 页码：868-875
- 全文大小：519K
- ISSN：1520-5126
文摘
A series of ladder-type thienoacenes based on benzo[1,2-b:4,5-b′]dithiophene (BDT) have been synthesized and characterized. They were shown to be p-type semiconductors with wide band gaps and able to support multiple stable cationic states. As the conjugation lengthens, these oligomers become more emissive, showing high quantum yields. They were shown to be good two-photon absorbers, exhibiting high two-photon absorption coefficients.