Journal
PHYSICA SCRIPTA
Volume 96, Issue 12, Pages -Publisher
IOP Publishing Ltd
DOI: 10.1088/1402-4896/ac2d88
Keywords
glasses; CdTe; SbSe; Physical properties; band gap; glass-transition temperature
Categories
Funding
- Deanship of Scientific Research at King Khalid University [1/216/42]
- Ministry of Education in KSA [IFP-KKU-2020/12]
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This study investigated the physicochemical characteristics of (CdTe)(100-x)(SbSe)(x) compounds using a chemical bond approach, finding that coordination number and number of constraints decreased with an increase in SbSe content, while cohesive energy increased and band gap decreased. The glass-transition temperature was also found to decrease with SbSe expansion.
Given the importance of (CdTe) and (SbSe) properties, one can presume exceptional applications of (CdTe)(100-x)(SbSe)(x) compounds. Therefore, diverse physicochemical characteristics were investigated. The overall number of coordination (CN), number of constraints (N-c), heat of atomization (H-a), cohesive energy (CE), and lone-pair electrons (LPE) of (CdTe)(100-x)(SbSe)(x) chalcogenide glasses were studied using the known chemical bond approach. CN and N-c diminished when the amount of SbSe was increased, whereas CE increased due to the decrease in Cd-Cd homo-polar bonds. The band gap (E-g) was assessed and found to diminish with SbSe expansion. A good agreement was found between the E-g assessments and previous experimental studies. The conduction and valence band positions were also determined. The glass-transition temperature (T-g) was assessed and found to diminish with SbSe expansion.
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