Contribution of excited state absorption to optical limiting properties in multi-branched structures

doi:10.1016/j.jphotochem.2017.09.026

CORC > 化学研究所 > 中国科学院化学研究所

	Contribution of excited state absorption to optical limiting properties in multi-branched structures
	Wang, Liuheng 1,3; Wu, Yishi 2; Zhao, Yuxia 1
刊名	JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
	2018-03-15
卷号	355 页码:226-232
关键词	Nonlinear Absorption 1064nm Laser Triphenylamine Thermal Stability Photochemical Stability
ISSN号	1010-6030
DOI	10.1016/j.jphotochem.2017.09.026
英文摘要	A series of multi-branched compounds D1-D3 combining a triphenylamine core with one, two or three benzylidene cyclopentylidene malononitrile branches, respectively, were synthesized. The linear photophysical property, photochemical stability, thermal stability, and nonlinear absorption under 1064 nm pulsed lasers with pulse durations in both nanosecond and femtosecond regimes of D1-D3 were investigated. The results showed that the main optical limiting mechanism of D1-D3 under femtosecond pulses was two-photon absorption (2PA), but their excited state absorption (ESA) became the main contributor for their optical limiting behaviors under nanosecond pulses. Meanwhile, introducing a multi-branched structure has much stronger impact on the ESA spectrum of D3 than on its linear absorption spectrum compared with the monomer Dl. The largest ESA cross-section of D3 was the main contributor to its enhancement of effective 2PA in nanosecond regime. Combining with its best thermal and photochemical stability, the three-branched compound D3 was proved as a good optical limiting material for 1064 nm nanosecond pulsed lasers. (C) 2017 Elsevier B.V. All rights reserved.
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000428227500035
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/46195]
专题	中国科学院化学研究所
通讯作者	Zhao, Yuxia
作者单位	1.Chinese Acad Sci, Tech Inst Phys & Chem, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, BNLMS, Beijing 100190, Peoples R China 3.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Liuheng,Wu, Yishi,Zhao, Yuxia. Contribution of excited state absorption to optical limiting properties in multi-branched structures[J]. JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,2018,355:226-232.
APA	Wang, Liuheng,Wu, Yishi,&Zhao, Yuxia.(2018).Contribution of excited state absorption to optical limiting properties in multi-branched structures.JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY,355,226-232.
MLA	Wang, Liuheng,et al."Contribution of excited state absorption to optical limiting properties in multi-branched structures".JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY 355(2018):226-232.