Optical, structural, enhanced local vibrational and fluorescence properties in K-doped ZnO nanostructures

被引：18

作者：

Bharathi, V. ^{[1
]}

Sivakumar, M. ^{[1
]}

Udayabhaskar, R. ^{[2
]}

Takebe, Hiromichi ^{[3
]}

Karthikeyan, B. ^{[2
]}

机构：

[1] Anna Univ, Div Nanosceicne & Technol, Tiruchirappalli 620024, India

[2] Natl Inst Technol, Dept Phys, Tiruchirappalli 620015, Tamil Nadu, India

[3] Ehime Univ, Grad Sch Sci & Engn, Dept Mat Sci & Biotechnol, Matsuyama, Ehime 7908577, Japan

来源：

APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING | 2014年 / 116卷 / 01期

关键词：

SONOCHEMICAL SYNTHESIS; NANOPARTICLES; NANORODS; NI;

D O I：

10.1007/s00339-013-8139-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

We studied structural, optical and vibrational properties of K-doped ZnO nanostructures. X-ray diffraction studies reveal that the prepared particles are hexagonal wurtzite in structure. Increase in lattice parameters and unit cell volume is observed after K doping. Dopant influences on stress, strain of the system are studied using W-H plots. Band gap variation by doping of K is identified from optical absorption studies. Photoluminescence studies have given insight into the enhancement in blue emission observed by K doping along with the near band emission of nano ZnO. From Fourier transform infrared spectral measurements, K-related local vibration mode is observed along with the information related to influence of doping on characteristic vibrational modes of ZnO.

引用

页码：395 / 401

页数：7

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