Preparation of nanostructured Bi-doped CdO thin films by sol-gel spin coating method

被引：46

作者：

Dagdelen, F. ^{[2
]}

Serbetci, Z. ^{[3
]}

Gupta, R. K. ^{[1
]}

Yakuphanoglu, F. ^{[3
]}

机构：

[1] N Carolina Agr & Tech State Univ, Engn Res Ctr, Greensboro, NC 27411 USA

[2] Firat Univ, Dept Phys, Fac Sci, TR-23169 Elazig, Turkey

[3] Bingol Univ, Dept Chem, Fac Arts & Sci, Bingol, Turkey

来源：

MATERIALS LETTERS | 2012年 / 80卷

关键词：

Nanostructure; CdO film; Band gap; Sol-gel; Bismuth; ELECTRICAL-PROPERTIES; OPTICAL-PROPERTIES; GAS SENSOR;

D O I：

10.1016/j.matlet.2012.04.087

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The nanostructured Bi-doped CdO thin films were prepared using sol-gel spin coating method. The morphology and optical properties were investigated using atomic force microscopy (AFM) and UV visible spectroscopy. The AFM results indicate that the CdO films are formed from the nanoparticles and the grain size of the films is changed with bismuth doping level. The optical band gap values of undoped and Bi-doped CdO films were determined by optical absorption method. The band gap value of undoped CdO film was found to be 2.589 eV, on the other hand, the band gap values of Bi-doped CdO films were found to be in the range of 2.657-2.684 eV. The band gap value of the CdO films is increased with the content of Bi dopant. It is evaluated that the optical band gap and grain size of the CdO film could be controlled by Bi-doping. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：127 / 130

页数：4

共 27 条

[1] Structural, optical and electrical properties of chemically sprayed CdO thin films [J].

Bhosale, CH ;

Kambale, AV ;

Kokate, AV ;

Rajpure, KY .

MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY, 2005, 122 (01) :67-71

[2] ELECTRON ELECTRON AND ELECTRON-HOLE INTERACTIONS IN SMALL SEMICONDUCTOR CRYSTALLITES - THE SIZE DEPENDENCE OF THE LOWEST EXCITED ELECTRONIC STATE [J].

BRUS, LE .

JOURNAL OF CHEMICAL PHYSICS, 1984, 80 (09) :4403-4409

[3]

Cruz J.S., 2005, THIN SOLID FILMS, V493, P83

[4] Correlated transport and optical phenomena in Ga-doped CdO films [J].

Dakhel, A. A. .

SOLAR ENERGY, 2008, 82 (06) :513-519

[5] Effect of cerium doping on the structural and optoelectrical properties of CdO nanocrystallite thin films [J].

Dakhel, A. A. .

MATERIALS CHEMISTRY AND PHYSICS, 2011, 130 (1-2) :398-402

[6] Electrical and optical properties of iron-doped CdO [J].

Dakhel, A. A. .

THIN SOLID FILMS, 2010, 518 (06) :1712-1715

[7] Some physical properties of Sn-doped CdO thin films prepared by chemical bath deposition [J].

de Leon-Gutierrez, L. R. ;

Cayente-Romero, J. J. ;

Peza-Tapia, J. M. ;

Barrera-Calva, E. ;

Martinez-Flores, J. C. ;

Ortega-Lopez, M. .

MATERIALS LETTERS, 2006, 60 (29-30) :3866-3870

[8]

De Neufville JP, 1993, J NONCRYST SOLIDS, V13, P19

[9]

Ferro R, 2000, PHYS STATUS SOLIDI A, V177, P477, DOI 10.1002/(SICI)1521-396X(200002)177:2<477::AID-PSSA477>3.0.CO

[10]

2-3

← 1 2 3 →