Document Details

Document Type : Article In Journal 
Document Title :
Characterization of Se88Te12 nanostructured chalcogenide prepared by ball milling
Characterization of Se88Te12 nanostructured chalcogenide prepared by ball milling
 
Subject : Physics 
Document Language : English 
Abstract : The present work deals with the structural and optical studies of Se88Te12 chalcogenide nanoparticles prepared by ball milling. Polycrystalline Se88Te12 chalcogenide prepared by melt quenching was used as a starting material. The ball milling was performed in a Laboratory 8000 M-Mixer/Mill (SPEX) mill using hardened steel balls and a vial with a ball-to-powder weight ratio of 10:1. After various times of milling, a small amount of material was taken from the container to be characterized by Transmission Electron Microscopy and optical measurements in thin film form within the wavelength region 400-1000 nm. Optical absorption measurements indicate that the absorption mechanism is due to direct transition. It has been observed that the optical band gap increases with the increase of milling time. The results are interpreted in terms of the change in concentration of localized states due to the shift in Fermi level. 
ISSN : 0167-577X 
Journal Name : Materials Letters 
Volume : 64 
Issue Number : 12 
Publishing Year : 1431 AH
2010 AD 
Article Type : Article 
Added Date : Sunday, October 16, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
شمشاد أحمد خانKhan, Shamshad AhmedResearcherDoctorateshamshad_phys@yahoo.com
فيصل عبدالعزيز العقلAl-Agel, Faisal AResearcherDoctoratefagel@kau.edu.sa
عادل صالح فيدةFaidah, Adel SResearcherDoctorateafaidah@kau.edu.sa
سعود جميل يغمورYaghmour, Saud JameelResearcherDoctoratesyaghmour@kau.edu.sa
أحمد عبدالله الغامديAl-Ghamdi, A AResearcherDoctorateAGAMDI@kau.edu.sa

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