Document Details

Document Type : Project 
Document Title :
Study of Degradation Mechanism in chalcogenides
دراسة آلية التفكك أو التحلل للمواد التشالكوجينه
 
Subject : Study of Degradation Mechanism in chalcogenides 
Document Language : Arabic 
Abstract : Chalcogenide glasses exhibit unique optical transmission and semiconducting properties and make them useful in applications such as threshold switching, memory switching, inorganic photoresistor, infra-red transmission and deletion through lenses and optical wave guides, x-ray imaging and in infrared sensors which could be used in remote sensing devices. The most promising properties of chalcogenide glasses have been found to deteriorate drastically during crystallization. Thus, the understanding of the mechanism of degradation of chalcogenide glasses is prerequisite for most of the application as stability against crystallization determines their effective working limits. In the light of this, in this proposal it is proposed to prepare binary and ternary chalcogenides of Cd. It is thus proposed to study optical and electrical properties of these glasses (in thin films) to determine their band gap and hence the conversion efficiency of a device in IR detection and remote sensing. Continuous heating of these materials at a constant heating rates have shown phase transformation and phase separation in their thermograms. In view of this fact, it becomes highly important and useful to study the thermal transport properties of these materials. An effort will also be made to see the effect of thermal annealing and laser irradiation on the optical properties of these glasses. Finally a correlation will be established in the two properties in order to tailor a useful structure for the practical applications mentioned above. 
Publishing Year : 1428 AH
2007 AD 
Sponsor Name : King Abdulaziz Univeristy 
Sponsorship Year : 1428 AH
2007 AD 
Added Date : Tuesday, July 13, 2010 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
فرج سعد الحازميAL-Hazmi, Farag SaadInvestigatorDoctorate 

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