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题名: Synthesis, optical properties and ultrafast dynamics of a 2,1,3-benzothiadiazole-based red emitter with intense fluorescence and large two-photon absorption cross-section
作者: Wang, Yaochuan1, 2;  Huang, Ju3, 4;  Zhou, Hui1;  Ma, Guohong5;  Qian, Shixiong1;  Zhu, Xu-hui3, 4
关键词: Two-photon absorption ;  Two-photon fluorescence ;  Excited state dynamics ;  Intramolecular charge transfer ;  Benzothiadiazole ;  Red emitter
刊名: DYES AND PIGMENTS
发表日期: 2012
DOI: 10.1016/j.dyepig.2011.06.032
卷: 92, 期:1, 页:573-579
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences ;  Technology
类目[WOS]: Chemistry, Applied ;  Engineering, Chemical ;  Materials Science, Textiles
研究领域[WOS]: Chemistry ;  Engineering ;  Materials Science
英文摘要: A new 2,1,3-benzothiadiazole-based red fluorescent compound with a D-A-D type structure was synthesized and characterized. The central 2,1,3-benzothiadiazole core was symmetrically connected via the 4,7-positions with two donor groups in which the 7-position of a fluorenyl ring was substituted with a carbazol-9-yl moiety and the 2-position was substituted by a 5-thienyl moiety. The carbazol moieties were further derivatized by two 2-naphthyl moieties at the 3,6-positions. Femtosecond laser spectroscopic techniques including excited state fluorescence and pump-probe technique investigations, together with steady state absorption and one-photon fluorescence spectra, were employed to systematically investigate the optical properties and ultrafast dynamics of the new compound in tetrahydrofuran solution. It shows a large two-photon absorption cross-section and high fluorescence quantum yield, indicating potential application in two-photon fluorescence imaging field. The ultrafast dynamics results reveal competition between a pure excited state relaxation process and stimulated radiation in the red wavelength region. (C) 2011 Published by Elsevier Ltd.
关键词[WOS]: ABSORBING MATERIALS ;  DITHIENYLBENZOTHIADIAZOLE ;  EFFICIENT ;  DYES ;  ELECTROLUMINESCENCE ;  MOLECULES ;  DESIGN ;  DIODES ;  DONOR
语种: 英语
WOS记录号: WOS:000295952300010
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/142957
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Fudan Univ, Dept Phys, Surface Phys Lab, State Key Lab, Shanghai 200433, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
3.S China Univ Technol, State Key Lab Phys & Chem Luminescence, Guangzhou 510640, Peoples R China
4.S China Univ Technol, Inst Polymer Optoelect Mat & Devices, Guangzhou 510640, Peoples R China
5.Shanghai Univ, Dept Phys, Shanghai 200000, Peoples R China

Recommended Citation:
Wang, Yaochuan,Huang, Ju,Zhou, Hui,et al. Synthesis, optical properties and ultrafast dynamics of a 2,1,3-benzothiadiazole-based red emitter with intense fluorescence and large two-photon absorption cross-section[J]. DYES AND PIGMENTS,2012,92(1):573-579.
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