Paper Title:
Influence of the Fluence and Substrate Temperature on the Structural and Optical Properties of CdSe Thin Films Prepared by Pulsed Laser Deposition
  Abstract

Cadmium Selenide (CdSe) thin films were prepared by pulsed laser deposition using a Nd:YAG laser (355 nm). Films were grown by ablating a sintered pure CdSe target with fluences from 0.1 to 1.5 J/cm2 on corning glass, silicon (100) and quartz substrates. Deposition chamber was maintained under vacuum pressure while substrate temperature was increased from room temperature to 500°C in order to control the crystalline phase. All the films show mirror-like surface morphology. Atomic force microscopy (AFM) images shown that films have very flat surfaces with RMS values around 0.7 and 5 nm for room temperature and 500°C respectively. The X-ray diffraction analysis proves the presence of the cubic zinc blend phase for the CdSe films deposited at low temperature, at 400°C and at higher substrate temperature the hexagonal phase is present. TEM analysis shows that at 100°C the films are constituted by particles with an average size of 30nm in diameter. The optical properties of the films were determined from the UV-transmission spectra. The estimated band gap values of the films deposited at room temperature and at 400°C (0.1 J/cm2) were 1.87 and 1.70 eV respectively.

  Info
Periodical
Edited by
J. Federico Chávez Alcalá, Alejandro Cruz Ramírez and Ma. de los Ángeles Hernández Pérez
Pages
134-138
DOI
10.4028/www.scientific.net/MSF.691.134
Citation
M.A. Hernández-Pérez, J.R. Aguilar-Hernández, J. R. Vargas-García, G.S. Contreras-Puente, E. Rangel-Salinas, F. Hernandez-Santiago, M. Vargas-Ramírez, "Influence of the Fluence and Substrate Temperature on the Structural and Optical Properties of CdSe Thin Films Prepared by Pulsed Laser Deposition", Materials Science Forum, Vol. 691, pp. 134-138, 2011
Online since
June 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Bum Rae Cho
Abstract:Indium tin oxide (ITO) used in many applications such as electronic and optical devices were deposited on the soda lime glass substrate by...
195
Authors: F.K. Shan, G.X. Liu, Byoung Chul Shin, Won Jae Lee, W.T. Oh
Abstract:High-quality In2O3 powder and ZnO powder had been used to make the ceramic target and the atomic ratio of 1 to 1 of indium and zinc had been...
308
Authors: Gaurav Shukla, Alika K. Khare
Abstract:TiO2 is a widely studied material for many important applications in areas such as environmental purification, photocatalyst, gas sensors,...
65
Authors: Feng Gao, Qing Nan Zhao, Xiu Jian Zhao, Yu Hong Dong
Abstract:Silicon Nitride thin films were deposited on glass substrates by r.f. magnetron sputtering with a mixture gas of N2 and Ar. The properties of...
1391
Authors: Tao Yu Zou, Xiao Lin Ji, Lei Ming Yu, Zhen Fang Qiao, Yi Ji Yang, Qiong Wu, Hai Yang, Hai Wang
Chapter 3: Optics and Solar Materials
Abstract:The copper phthalocyanine thin films were deposited on quartz and Si/SiO2 substrates at different substrate temperatures. The morphologies,...
123