EFFECT OF DEPOSITION RATE ON THE MORPHOLOGY OF CdS FILMS DEPOSITED IN AN AMMONIA FREE SOLUTION

被引：0

作者：

Carrillo-Castillo, A.

Aguirre-Tostado, F. S. ^{[1
]}

Salas-Villasenor, A. ^{[2
]}

Mejia, I. ^{[2
]}

Gnade, B. E. ^{[2
]}

Sotelo-Lerma, M. ^{[3
]}

Quevedo-Lopez, M. A. ^{[2
,3
]}

机构：

[1] Ctr Invest Mat Avanzados, Apodaca 666000, Nuevo Leon, Mexico

[2] Univ Texas Dallas, Dept Mat Sci & Engn, Dallas, TX 75083 USA

[3] Univ Sonora, Dept Invest Polimeros & Mat, Hermosillo 83000, Sonora, Mexico

来源：

CHALCOGENIDE LETTERS | 2013年 / 10卷 / 02期

关键词：

Chemical bath deposition; Cadmium sulphide; pH; Deposition rate; CHEMICAL BATH DEPOSITION; THIN-FILMS; NANOPARTICLES;

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Cadmium sulphide semiconductor thin films have been deposited by chemical bath technique (70 degrees C) on HfO2 substrates. The effect of pH on deposition rate was studied to determine the optimum condition for deposition. CdS films were deposited at pH ranging from 10 to 11.9 in an ammonia-free CBD process employing sodium citrate dihydrate and potassium hydroxide as complexing agents. The increase of pH reduced the deposition rate due to higher complexation and slow generation of Cd2+, improving the morphology of CdS films. X- ray diffraction studies showed hexagonal crystalline phase of CdS with an optical band gap around 2.4 eV as determined by UV-Vis absorption. Fourier transform infrared spectroscopy showed more presence of impurities on CdS films deposited at low deposition rate-high pH.

引用

页码：81 / 86

页数：6

共 21 条

[1] PHOTOACOUSTIC AND LUMINESCENCE SPECTRA OF CDS FINE PARTICLES
ARAI, T
YOSHIDA, T
OGAWA, T
[J]. JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS BRIEF COMMUNICATIONS & REVIEW PAPERS, 1987, 26 (03): : 396 - 404
[2] Syntheses and characterization of CdCO3 and CdO nanoparticles by using a sonochemical method
Askanneiad, Azadeh
Morsali, All
[J]. MATERIALS LETTERS, 2008, 62 (03) : 478 - 482
[3] Novel approach to the chemical bath deposition of chalcogenide semiconductors
Boyle, DS
Bayer, A
Heinrich, MR
Robbe, O
O'Brien, P
[J]. THIN SOLID FILMS, 2000, 361 : 150 - 154
[4] Synthesis of nanocrystalline CdS thin films in PVA matrix
Devi, R.
Purkayastha, P.
Kalita, P. K.
Sarma, B. K.
[J]. BULLETIN OF MATERIALS SCIENCE, 2007, 30 (02) : 123 - 128
[5] Hodes G., 2002, CHEM SOLUTION DEPOSI, V1, DOI [10.1201/9780203909096, DOI 10.1201/9780203909096]
[6] THRESHOLD FOR QUASI-CONTINUUM ABSORPTION AND REDUCED LUMINESCENCE EFFICIENCY IN CDSE NANOCRYSTALS
HOHEISEL, W
COLVIN, VL
JOHNSON, CS
ALIVISATOS, AP
[J]. JOURNAL OF CHEMICAL PHYSICS, 1994, 101 (10) : 8455 - 8460
[7] Howard WE, 2003, THIN-FILM TRANSISTORS, P1
[8] Kaur D. K., 1980, ELECTROCHEM SOC, V127, P43
[9] Optical and structural properties of thermally evaporated cadmium sulphide thin films on silicon (100) wafers
Khan, Ziaul Raza
Zulfequar, M.
Khan, Mohd Shahid
[J]. MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS, 2010, 174 (1-3): : 145 - 149
[10] MATRIX-ISOLATED II-VI MOLECULES - SULFIDES OF MG, CA, SR, ZN AND CD
MARTIN, TP
SCHABER, H
[J]. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, 1982, 38 (06): : 655 - 660

← 1 2 3 →