| 取代基对二噻吩并噻吩衍生物的双光子吸收性质的影响 |
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| 引用本文： | 周树兰,赵显,孙学勤,程秀凤.取代基对二噻吩并噻吩衍生物的双光子吸收性质的影响[J].高等学校化学学报,2006,27(10):1949-1952. |
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| 作者姓名： | 周树兰 赵显 孙学勤 程秀凤 |
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| 作者单位： | 山东大学晶体材料国家重点实验室,济南,250100;山东大学晶体材料国家重点实验室,济南,250100;山东大学晶体材料国家重点实验室,济南,250100;山东大学晶体材料国家重点实验室,济南,250100 |
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| 基金项目： | 国家自然科学基金;教育部科学技术基金 |
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| 摘 要： | 利用ZINDO/SOS方法, 从理论上研究了对称和不对称取代两种情况下, 取代基对二噻吩并噻吩衍生物单双光子吸收性质的影响. 结果表明, 所设计的噻吩类分子具有较大的双光子吸收截面, 且双受体取代比双给体取代更有利于增大分子的双光子吸收截面. 同时发现, 此类分子受体取代可以显著增加波长较短的双光子峰附近的双光子吸收, 而给体取代则可以改善波长较长吸收峰附近的双光子吸收.
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| 关 键 词： | 双光子吸收截面 二噻吩并噻吩衍生物(DTT) Sum-Over-States(SOS) |
| 文章编号： | 0251-0790（2006）10-1949-04 |
| 收稿时间： | 09 21 2005 12:00AM |
| 修稿时间： | 2005-09-21 |
Effect of Substituents on the Two-photon Absorption Properties for Chromophores Based on Dithienothiophene |
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| ZHOU Shu-Lan,ZHAO Xian,SUN Xue-Qin,CHENG Xiu-Feng.Effect of Substituents on the Two-photon Absorption Properties for Chromophores Based on Dithienothiophene[J].Chemical Research In Chinese Universities,2006,27(10):1949-1952. |
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| Authors: | ZHOU Shu-Lan ZHAO Xian SUN Xue-Qin CHENG Xiu-Feng |
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| Affiliation: | State Key Laboratory of Crystal Materials, Shandong University, Jinan 250100, China |
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| Abstract: | In order to investigate the effect of substituents on the two-photon absorption properties(TPA),the one-and two-photon absorption properties were theoretically studied by using ZINDO/SOS method.The results indicate that the compounds based on DTT exhibit strong TPA.Comparing to the unsubstituent molecule,it was found that bis-acceptor substituted molecules possess of drastic enhancement of the TPA cross section at the shorter wavelength absorption peaks and bis-donor substituent can increase the TPA cross section at the longer wavelength absorption peaks. |
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| Keywords: | Two-photon absorption cross section Chromophores based on dithienothiophene Sum-Over-States(SOS) |
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