A Quantitative Approach for the Determination of Light Induced Defects in a-Se_{90}Sb_{10-x}Ag_x Thin Films by Using Thermally Stimulated Current Technique

Kumar, Anjani; Tripathi, S.; Kumar, A.

doi:10.12693/APhysPolA.129.1178

Journal

Acta Physica Polonica A

2016 | 129 | 6 | 1178-1183

Article title

A Quantitative Approach for the Determination of Light Induced Defects in a-Se_{90}Sb_{10-x}Ag_x Thin Films by Using Thermally Stimulated Current Technique

Authors

Anjani Kumar , S. Tripathi , A. Kumar

Content

Full texts:

http://przyrbwn.icm.edu.pl/APP/PDF/129/a129z6p19.pdf [remote]

Title variants

Languages of publication

Abstracts

Thin films of Se_{90}Sb_{10-x}Ag_x (x=0, 2, 4, 6, 8) glasses have been prepared by vacuum evaporation technique. Present study reports the quantitative estimation of light induced defects in aforesaid thin films by using thermally stimulated current technique. Measurements have been made in a vacuum ≈10¯³ Torr before and after exposing amorphous films to white light for different exposure times (0 to 6 h). Results indicate that light induced defects are created due to prolonged exposure of light and this is explained by a microscopic model proposed by Shimakawa and co-workers. It is also found that fractional increase in light induced defect density decreases as Ag concentration increases. A discontinuity has, however, been observed at 4 at.% of Ag which is explained in terms of average coordination number.

Keywords

71.55.Jv 72.80.Ng

Discipline

Publisher

Journal

Acta Physica Polonica A

Year

2016

Volume

129

Issue

Pages

1178-1183

Physical description

Dates

published

2016-06

received

2015-08-22

(unknown)

2016-03-13

Contributors

author

Anjani Kumar

Department of Physics, Harcourt Butler Technological Institute, Kanpur, India

author

S. Tripathi

Department of Physics, Panjab University, Chandigarh, India

author

A. Kumar

Department of Physics, Harcourt Butler Technological Institute, Kanpur, India

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Document Type

Publication order reference

Identifiers

DOI

10.12693/APhysPolA.129.1178

YADDA identifier

bwmeta1.element.bwnjournal-article-appv129n619kz