Band gap narrowing and fluorescence properties of nickel doped SnO2 nanoparticles

被引：302

作者：

Ahmed, Arham S. ^{[1
]}

Muhamed, Shafeeq M. ^{[1
]}

Singla, M. L. ^{[3
]}

Tabassum, Sartaj ^{[2
]}

Naqvi, Alim H. ^{[1
]}

Azam, Ameer ^{[1
]}

机构：

[1] Aligarh Muslim Univ, Dept Appl Phys, ZH Coll Engn & Technol, Ctr Excellence Mat Sci Nanomat, Aligarh 202002, Uttar Pradesh, India

[2] Aligarh Muslim Univ, Dept Chem, Aligarh 202002, Uttar Pradesh, India

[3] CSIR, CSIO, Mat Res & Bio Nanotechnol Div, Chandigarh 160030, India

来源：

JOURNAL OF LUMINESCENCE | 2011年 / 131卷 / 01期

关键词：

Tin oxide nanoparticles; Sol-gel; XRD; Band gap; Fluorescence; TIN OXIDE; LUMINESCENT PROPERTIES; OPTICAL-PROPERTIES; ENERGY-TRANSFER; PHOTOLUMINESCENCE; THIN; TRANSPARENT; OXIDATION; SURFACE; GROWTH;

D O I：

10.1016/j.jlumin.2010.07.017

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Nickel-doped tin oxide nanoparticles (sub-5 nm size) with intense fluorescence emission behavior have been synthesized by sol-gel route The structural and compositional analysis has been carried out by using XRD TEM FESEM and EDAX The optical absorbance spectra indicate a band gap narrowing effect and it was found to increase with the increase in nickel concentration The band gap narrowing at low dopant concentration (< 5%) can be assigned to SnO2-SnO2-x,,, alloying effect and for higher doping it may be due to the formation of defect sub-bands below the conduction band (c) 2010 Elsevier B V All rights reserved

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页码：1 / 6

页数：6

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