Document Details

Document Type : Article In Journal 
Document Title :
The Growth and Characteristic Features of Some Chalcogenides from the Group AIII BIII C2VI Semiconductor Compounds
الإنماء البلوري والملامح المميزة لبعض مركبات اشباه الموصلات الشالكوجنيديه من المجموعة AIII BIII C2VI
 
Subject : The Growth and Characteristic Features of Some Chalcogenides from the Group AIII BIII C2VI Semiconductor Compounds 
Document Language : English 
Abstract : In the present paper , the electrical conductivity, Hall effect and thermoelectric power of single crystals prepared by a special modified Bridgman technique have been investigated over the temperature range 228 -553 K for electrical conductivity and Hall effect and in the temperature range 181 – 373 K for thermoelectric power. Our investigation showed that our samples are P- type conducting. The forbidden energy gap was calculated and found to be 0.826 eV, whereas the ionization energy of the impurity level was 0.336 eV, the values of the electrical conductivity, Hall coefficient and carrier concentration at room temperature were 8.55x10-4 Ω-1 cm-1, 1.11x106 cm3 C-1 and 5.615x1012 cm-3 respectively. The Hall mobility at room temperature was found to be 9.52x1012 cm2 V-1s-1. The combination of the electrical and thermal measurements in the present investigation makes it possible to find various physical parameters such as mobilities , effective mass, relaxation times , diffusion coefficients and diffusion lengths both for majority and for minority carriers. Also figure of merit was determined. This mode of investigation ( crystal growth, electrical conductivity, Hall effect and thermoelectric power ) is an ideal way for finding out the possibility of making applications for these semiconductor compounds especially in the field of energy conversion, semiconductor devices and electronic engineering 
ISSN : 1991-8178 
Journal Name : Australian journal of Basic and Applied Sciences 
Volume : 5 
Issue Number : 7 
Publishing Year : 1432 AH
2011 AD 
Article Type : Article 
Added Date : Saturday, May 19, 2012 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
لمياء زين محمدmohammed, lamiaa zainResearcherMasterLmamduh@kau.edu.sa

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