تفاصيل الوثيقة

نوع الوثيقة : مقال في مجلة دورية 
عنوان الوثيقة :
Characterisation of amorphous Se97Te3 nanoparticles prepared by ball milling
Characterisation of amorphous Se97Te3 nanoparticles prepared by ball milling
 
الموضوع : فيزياء 
لغة الوثيقة : الانجليزية 
المستخلص : 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. 
ردمد : 1746-9392 
اسم الدورية : International Journal of Nanomanufacturing 
المجلد : 4 
العدد : 1 
سنة النشر : 1430 هـ
2009 م 
نوع المقالة : مقالة علمية 
تاريخ الاضافة على الموقع : Tuesday, December 20, 2011 

الباحثون

اسم الباحث (عربي)اسم الباحث (انجليزي)نوع الباحثالمرتبة العلميةالبريد الالكتروني
Jyotsana K LalLal, Jyotsana Kباحثدكتوراهprincipal@st-andrews-college.org
شمشاد أحمد خانKhan, Shamshad Ahmedباحثدكتوراهshamshad_phys@yahoo.com
أحمد عبدالله الغامديAl-Ghamdi, Ahmad AباحثدكتوراهAGAMDI@kau.edu.sa
ذيشان حسين خانKhan, Zishan Hباحثدكتوراهzishan_hk@yahoo.co.in

الملفات

اسم الملفالنوعالوصف
 31703.pdf pdfAbstract

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