Nonlinear optical response of tetra and mono substituted zinc phthalocyanine complexes

被引：26
|
作者：
Fashina, Adedayo [1 ]
Nyokong, Tebello [1 ]
机构：
[1] Rhodes Univ, Dept Chem, ZA-6140 Grahamstown, South Africa
来源：
JOURNAL OF LUMINESCENCE | 2015年 / 167卷
基金：
新加坡国家研究基金会;
关键词：
Zinc phthalocyanine; Alkyne; Two photon absorption; Limiting threshold; Nonlinear absorption; PHOTOPHYSICAL BEHAVIOR; LIMITING PROPERTIES; ABSORPTION; NANOPARTICLES; SPECTROSCOPY; DYES;
D O I：
10.1016/j.jlumin.2015.06.003
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
The nonlinear absorption properties of 6 mono-substituted and 3 symmetric zinc phthalocyanine complexes have been studied in dimethylsulfoxide (DMSO) using 10 ns pulses at 532 nm. The non linear absorption of the complexes has been studied using the Z-scan technique. The study showed that both the singlet and triplet excited states contribute to the non linear absorption behavior. The nonlinear third-order susceptibility and second-order hyperpolarizability values of the complexes are reported. It was observed that two of the symmetric phthalocyanine complexes (5-alpha substituted with aminophenoxy and 9-beta substituted with carboxyphenoxy) showed better and promising optical nonlinearity when compared to the other complexes studied. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：71 / 79
页数：9
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