Structural, electrical and optical studies of SILAR deposited cadmium oxide thin films: Annealing effect

被引：58

作者：

Salunkhe, R. R. ^{[1
]}

Dhawale, D. S. ^{[1
]}

Gujar, T. P. ^{[1
]}

Lokhande, C. D. ^{[1
]}

机构：

[1] Shivaji Univ, Dept Phys, Thin Film Phys Lab, Kolhapur 416004, Maharashtra, India

来源：

MATERIALS RESEARCH BULLETIN | 2009年 / 44卷 / 02期

关键词：

Thin films; Nanostructures; Chemical synthesis; Electrical properties; Optical properties; CHEMICAL BATH DEPOSITION; CDO;

D O I：

10.1016/j.materresbull.2008.05.010

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Successive ionic layer adsorption and reaction (SILAR) method has been successfully employed for the deposition of cadmium oxide (CdO) thin films. The films were annealed at 623 K for 2 h in an air and changes in the structural, electrical and optical properties were studied. From the X-ray diffraction patterns, it was found that after annealing, H2O vapors from as-deposited Cd(O-2)(0.88)(OH)(0.24) were removed and pure cubic cadmium oxide was obtained. The as-deposited film consists of nanocrystalline grains of average diameter about 20-30 nm with uniform coverage of the substrate surface, whereas for the annealed film randomly oriented morphology with slight increase in the crystallite size has been observed. The electrical resistivity showed the semiconducting nature with room temperature electrical resistivity decreased from 10(-2) to 10(-3) Omega cm after annealing. The decrease in the band gap energy from 3.3 to 2.7 eV was observed after the annealing. (C) 2008 Elsevier Ltd. All rights reserved.

引用

页码：364 / 368

页数：5

共 25 条

[1]

[Anonymous], THIN SOLID FILMS

[2] A chemical method for the preparation of thin films of CdO and ZnO [J].

Benramdane, N ;

Murad, WA ;

Misho, RH ;

Ziane, M ;

Kebbab, Z .

MATERIALS CHEMISTRY AND PHYSICS, 1997, 48 (02) :119-123

[3] Stable and highly sensitive gas sensors based on semiconducting oxide nanobelts [J].

Comini, E ;

Faglia, G ;

Sberveglieri, G ;

Pan, ZW ;

Wang, ZL .

APPLIED PHYSICS LETTERS, 2002, 81 (10) :1869-1871

[4]

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

[5] Oxygen partial pressure dependence of the structural properties of CdO thin films deposited by a modified reactive vacuum evaporation process [J].

Eze, FC .

MATERIALS CHEMISTRY AND PHYSICS, 2005, 89 (2-3) :205-210

[6] Solvothermal synthesis of CdO and CuO nanocrystals [J].

Ghosh, M ;

Rao, CNR .

CHEMICAL PHYSICS LETTERS, 2004, 393 (4-6) :493-497

[7] Electrical and optical properties of highly conducting CdO:F thin film deposited by sol-gel dip coating technique [J].

Ghosh, PK ;

Maity, R ;

Chattopadhyay, KK .

SOLAR ENERGY MATERIALS AND SOLAR CELLS, 2004, 81 (02) :279-289

[8]

GONZALEZ AJ, 1996, J CRYST GROWTH, V167, P649

[9] DC reactive magnetron sputtered CdO thin films [J].

Gurumurugan, K ;

Mangalaraj, D ;

Narayandass, SK ;

Nakanishi, Y .

MATERIALS LETTERS, 1996, 28 (4-6) :307-312

[10] Room temperature deposition of nanocrystalline cadmium peroxide thin film by electrochemical route [J].

Han, XF ;

Liu, R ;

Xu, ZD ;

Chen, WX ;

Zheng, YF .

ELECTROCHEMISTRY COMMUNICATIONS, 2005, 7 (12) :1195-1198

← 1 2 3 →