Nano ZnO, Cu-doped ZnO, and Ag-doped ZnO assisted generation of light from imidazole

被引：23

作者：

Jayabharathi, J. ^{[1
]}

Karunakaran, C. ^{[1
]}

Kalaiarasi, V. ^{[1
]}

Ramanathan, P. ^{[1
]}

机构：

[1] Annamalai Univ, Dept Chem, Annamalainagar 608002, Tamil Nadu, India

来源：

JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY | 2014年 / 295卷

关键词：

SEM; EDX; Fluorescence; ZnO; XRD; DRS; CORE-SHELL NANOPARTICLES; PHOTOLUMINESCENCE; EMISSION; ELECTRON; OXYGEN; DOTS;

D O I：

10.1016/j.jphotochem.2014.09.002

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

A sensitive 2-(4-methoxyphenyl)-1-(naphthalene-1-yl)-4,5-diphenyl-1H-imidazole (MNDI) fluorescent sensor for nanoparticulate ZnO has been designed and synthesized. The nanocrystalline ZnO, Cu-doped ZnO, and Ag-doped ZnO have been synthesised by sol-gel method and characterized by powder X-ray diffraction, scanning electron microscopy(SEM), UV-vis diffuse reflectance, photoluminescence and life time spectral studies. All the synthesized nanoparticles display violet emission due to charge carrier-recombination. The synthesized sensor emission is enhanced by nanocrystalline pristine ZnO but is suppressed by Cu-doped ZnO and Ag-doped ZnO nanoparticles. The suppression of fluorescence is more by copper than by silver doping. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：1 / 10

页数：10

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