EFFECT OF Zn INCORPORATION ON OPTICAL PROPERTIES OF AMORPHOUS Se-Te THIN FILMS

被引：0
|
作者：
Srivastava, S. [1 ]
Pandey, V. [1 ]
Tripathi, S. K. [2 ]
Shukla, R. K. [1 ]
Kumar, A. [1 ]
机构：
[1] Harcourt Butler Technol Inst, Dept Phys, Kanpur 208002, Uttar Pradesh, India
[2] Panjab Univ, Dept Phys, Chandigrah 160014, India
来源：
JOURNAL OF OVONIC RESEARCH | 2008年 / 4卷 / 04期
关键词：
Chalcogenide glasses; Optical band gap;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Measurements of optical properties have been made on alloyed samples of Se and Te with Zn prepared under vacuum by quenching the melt into water. The optical transmission spectra of films of Se70Te30-xZnx (x = 0, 8) are measured in the wavelength range 400-2000 nm by spectrophotometer. It is observed that refractive index (n), real dielectric constant (epsilon'), extinction coefficient (k), imaginary dielectric constant (epsilon '') decrease with increase in wavelength (lambda). The absorption coefficient (alpha) increases with photon energy (h nu). The optical energy gap (E-g) has been calculated from optical coefficient data, which is found to increase with Zn content.
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页码：83 / 90
页数：8
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