Surfactant Mediated low temperature thermal decomposition route to zinc oxide nanocrystals

被引：4

作者：

Bhattacharjee, Chira R. ^{[1
]}

Purkayastha, Debraj Dhar ^{[1
]}

Das, Nirmalendu ^{[1
]}

机构：

[1] Assam Univ, Dept Chem, Silchar 788011, India

来源：

MATERIALS LETTERS | 2012年 / 86卷

关键词：

Nanocrystalline materials; Semiconductors; Luminescence; X-ray techniques; ZNO NANOPARTICLES; CRYSTALLITES; FILMS; UV;

D O I：

10.1016/j.matlet.2012.07.049

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Zinc oxide nanocrystals were synthesized via thermal decomposition of a new precursor zinc malonate, [ZnCH2C2O4] center dot 2H(2)O in the presence of surfactant stabilizers oleylamine (C18H35NH2) and triphenylphosphine ((C6H5)(3)P). The nanocrystals were characterized by X-ray diffraction, transmission electron microscopy, FT-IR and UV-visible spectroscopy. XRD pattern showed a hexagonal wurtzite structure of ZnO having average crystallite size of about 22 nm. The TEM image showed the nanocrystallites constituting the flower-like pattern to be of 25-55 nm sizes. The band gap luminescence was observed at 354 nm (similar to 3.50 eV) alongwith defect related blue emission at 450 nm (similar to 2.75 eV). (c) 2012 Elsevier B.V. All rights reserved.

引用

页码：108 / 111

页数：4

共 29 条

[11] THE INFLUENCE OF FILM CRYSTALLINITY ON THE COUPLING EFFICIENCY OF ZNO OPTICAL MODULATOR WAVE-GUIDES [J].