Phenomenal enhancement of optical nonlinearity in PTZ-I based ZnS/ZnSe nanocomposites

被引：6

作者：

Divyasree, M. C. ^{[1
]}

Shiju, E. ^{[1
]}

Vijisha, M. V. ^{[1
]}

Ramesan, M. T. ^{[2
]}

Chandrasekharan, K. ^{[1
]}

机构：

[1] Natl Inst Technol Calicut, Dept Phys, Laser & Nonlinear Opt Lab, Calicut 673601, Kerala, India

[2] Univ Calicut, Dept Chem, Calicut 673635, Kerala, India

来源：

OPTICAL MATERIALS | 2018年 / 79卷

关键词：

Charge transfer complex; Nanocomposite; Pulsed laser ablation; Nonlinear optics; CHARGE-TRANSFER COMPLEXES; METAL-COMPLEXES; GRAPHENE; IODINE;

D O I：

10.1016/j.optmat.2018.03.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The enhanced nonlinear optical properties of phenothiazine-iodine (PT-Z-I) charge transfer complex (CTC) on composite formation with ZnS/ZnSe nanostructures are reported. The interaction between the components was confirmed by the FTIR spectra. Structural and morphological changes on nano composite formation were analyzed by scanning electron microscopy and X-ray diffraction spectra. The absorption and emission features of both the nanocomposites and their constituent components were studied. Nonlinear optical properties of all the samples in nanosecond regime were investigated by the Z-scan technique using Nd: YAG laser with 532 nm wavelength and 7 ns pulse width. The optical nonlinearity of PTZ-I CTC was found to be improved considerably on composite formation and the new systems can be proposed as excellent candidates for photonic devices. Enhanced optical nonlinearity of the composites could be attributed to charge/energy transfer mechanism between PTZ-I CTC and the nanostructures. (C) 2018 Elsevier B.V. All rights reserved.

引用

页码：72 / 77

页数：6

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