Novel composites based on polymer micro-rods for photonic device applications

被引：8
|
作者：
Thankappan, Aparna [1 ,2 ]
Thomas, Sheenu [1 ]
Nampoori, V. P. N. [1 ]
机构：
[1] Cochin Univ Sci & Technol, Int Sch Photon, Kochi, Kerala, India
[2] Cochin Univ Sci & Technol, Inter Univ Ctr Nanomat & Devices, Kochi, Kerala, India
来源：
OPTICS AND LASER TECHNOLOGY | 2014年 / 58卷
关键词：
ZnO; Micro-rods; Z-scan; OPTICAL NONLINEARITY; ZNO; NANOPARTICLES; GROWTH; FILMS;
D O I：
10.1016/j.optlastec.2013.10.017
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
ZnO micro-crystals had been successfully fabricated on a large scale under mild conditions without any additives, templates or substrates, exhibiting a hexagonal wurtzite structure and grown along the [001] direction. Effects of the reactant concentration and temperature on the sizes and morphologies of the ZnO products had been investigated. The optical absorptive nonlinearity of the ZnO/PVA composites was analyzed using an open aperture and a closed Z-scan technique shows a negative value for nonlinear refractive index n(2). Stability as well as the mechanical properties of the crystals embedded in the PVA matrix makes them more suitable for device fabrication as compared to the ZnO crystals dispersed in solution. (C) 2013 Elsevier Ltd. All rights reserved.
引用
收藏
页码：63 / 70
页数：8
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