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Proceedings Paper

Correlation between the optical and electrical parameters of ZnSe thin films
Author(s): S. Venkatachalam; Y. L. Jeyachandran; V. SenthilKumar; Devanesan Mangalaraj; Sa. K. Narayandass; K. Kim; J. Yi
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Paper Abstract

ΩZinc Selenide (ZnSe) thin films are deposited onto the well cleaned glass substrates using vacuum evaporation method under a vacuum of 3 × 10-5Torr. Rutherford Backscattering Spectrometry (RBS) is employed to study the composition of the deposited film and the composition of the deposited film is found to be nearly stoichiometric. The deposited film is having cubic structure and is oriented along (111) direction. The particle size, strain and dislocation density are found to be 14.24 nm, 2.74 × 10-3lines/m2 and 4.9 × 10-3lines-2/m-4respectively. The optical band gap value is evaluated as 2.69 eV. The reflectance spectrum is obtained from the transmittance and absorbance spectra of the films. The refractive index value is calculated from the obtained reflectance spectra and is found to be in the range of 1.57 to 2.48. Drude’s theory of dielectric is used to calculate the values of carrier concentration, resistivity and mobility from the optical studies and the values are found to be 33.8 0× 1025m-3, 0.62 × 10-5Ωm and 33 × 10-3m-3respectively.

Paper Details

Date Published: 8 December 2004
PDF: 6 pages
Proc. SPIE 5774, Fifth International Conference on Thin Film Physics and Applications, (8 December 2004); doi: 10.1117/12.607472
Show Author Affiliations
S. Venkatachalam, Bharathiar Univ. (India)
Y. L. Jeyachandran, Bharathiar Univ. (India)
V. SenthilKumar, Bharathiar Univ. (India)
Devanesan Mangalaraj, Bharathiar Univ. (India)
Sungkyunkwan Univ. (South Korea)
Sa. K. Narayandass, Bharathiar Univ. (India)
K. Kim, Sungkyunkwan Univ. (South Korea)
J. Yi, Sungkyunkwan Univ. (South Korea)

Published in SPIE Proceedings Vol. 5774:
Fifth International Conference on Thin Film Physics and Applications
Junhao Chu; Zongsheng Lai; Lianwei Wang; Shaohui Xu, Editor(s)

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