Document Details

Document Type : Article In Journal 
Document Title :
Characterisation of amorphous Se97Te3 nanoparticles prepared by ball milling
Characterisation of amorphous Se97Te3 nanoparticles prepared by ball milling
 
Subject : Physics 
Document Language : English 
Abstract : The authors' present research work is concentrated with structural and optical studies of amorphous Se97Te3 nanoparticles. The amorphous Se97Te3 material was used as a starting material. The ball milling was performed in a Laboratory 8000M-Mixer/Mill (SPEX) mill. The milled materials were characterised by XRD, transmission electron microscopy (TEM) and optical measurements within the wavelength region 300 nm-1000 nm. From XRD measurements, it is found that an amorphous stage is also achieved during the milling process. TEM measurements showed that after 30 hours, 40 hours and 70 hours of milling time, amorphous nanoparticles of different sizes were developed. The optical band gap and optical constants of the milled materials have been studied as a function of photon energy. Optical absorption measurements indicate that the absorption mechanism is due to indirect transition. It has been observed that the absorption coefficient increases lineally with the increase in photon energy and the optical band gap increases with the increase of milling time. 
ISSN : 1746-9392 
Journal Name : International Journal of Nanomanufacturing 
Volume : 4 
Issue Number : 1 
Publishing Year : 1430 AH
2009 AD 
Article Type : Article 
Added Date : Tuesday, December 20, 2011 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
Jyotsana K LalLal, Jyotsana KResearcherDoctorateprincipal@st-andrews-college.org
شمشاد أحمد خانKhan, Shamshad AhmedResearcherDoctorateshamshad_phys@yahoo.com
أحمد عبدالله الغامديAl-Ghamdi, Ahmad AResearcherDoctorateAGAMDI@kau.edu.sa
ذيشان حسين خانKhan, Zishan HResearcherDoctoratezishan_hk@yahoo.co.in

Files

File NameTypeDescription
 31703.pdf pdfAbstract

Back To Researches Page