Structural and optical characterisation of undoped and chromium doped tin oxide prepared by sol-gel method

被引：21
|
作者：
Ibrahim, N. B. [1 ]
Abdi, M. H. [1 ]
Abdullah, M. H. [1 ]
Baqiah, H. [1 ]
机构：
[1] Univ Kebangsaan Malaysia, Sch Appl Phys, Fac Sci & Technol, Bangi 43600, Selangor, Malaysia
来源：
APPLIED SURFACE SCIENCE | 2013年 / 271卷
关键词：
Energy gap; Cr doped SnO2; Thin films; Sol-gel; ROOM-TEMPERATURE FERROMAGNETISM; ZNO;
D O I：
10.1016/j.apsusc.2013.01.171
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：
Transparent semiconductor thin films, Cr doped SnO2 (Sn1-xCrxO2: x = 0.0, 0.02, 0.04, 0.06, 0.10, 0.20) were deposited onto glass substrates by a sol-gel method. The thermal gravitational analysis showed that mass lost happened at 120 degrees C due to evaporation of water and ethanol. X-ray diffraction analysis showed that the Cr doped SnO2 were polycrystalline with SnO2 phases. The crystalline sizes were in the range of 3.7-4.9 nm. The optical property measured using UV-Vis spectrophotometer showed that the transparency of all samples was more than 90% and the calculated band gaps were in the range of 3.84-3.96 eV which was due to the Cr dopant that increased the samples energy band gap. (C) 2013 Elsevier B.V. All rights reserved.
引用
收藏
页码：260 / 264
页数：5
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