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نوع الوثيقة : مقال في مجلة دورية 
عنوان الوثيقة :
Heat-treatment effect on the structural and optical properties of flash evaporated Sb2 Te3 thin films
Heat-treatment effect on the structural and optical properties of flash evaporated Sb2 Te3 thin films
 
الموضوع : فيزياء 
لغة الوثيقة : الانجليزية 
المستخلص : The effect of thickness and heat treatment on the structural and optical properties of Sb2Te3 thin films fabricated by using flash evaporation technique were investigated. The as-deposited films were found to be stoichiometric. For the as-deposited and annealed samples of thickness in the range of 20.7-120.5 nm, large variations in transmittance and reflectance were observed for wavelength below 2000 nm due to strong absorption, while slight variations were observed above 2000 nm. The optical constants, n and k, measured in the range of 500-4000 nm, increased slightly by annealing the samples at 573 K for 2 h in air and a red shift was observed. Allowed indirect transitions were observed for the as-deposited and the annealed samples. The results showed two energy gaps for these transitions varied from 0.28 to 0.31 eV for the as-deposited samples and from 0.56 to 0.54 eV for the annealed films. The spectral distribution of the real part of the dielectric constant ́ showed a maximum at 0.73 eV for the as-deposited films decreased to 0.65 eV by annealing. © EDP Sciences. 
ردمد : 1286-0042 
اسم الدورية : EPJ Applied Physics, Volume 44, Issue 1, October 2008, Pages 59-64 
المجلد : 44 
العدد : 1 
سنة النشر : 2008 هـ
2008 م 
عدد الصفحات : 5 
نوع المقالة : مقالة علمية 
تاريخ الاضافة على الموقع : Thursday, October 15, 2009 

الباحثون

اسم الباحث (عربي)اسم الباحث (انجليزي)نوع الباحثالمرتبة العلميةالبريد الالكتروني
Soliman, H.SSoliman, H.Sباحثدكتوراه 
سعود جميل مصطفى يغمورYaghmour, S.Jباحثدكتوراهsyaghmour@kau.edu.sa
Al-Solami, H.GAl-Solami, H.Gباحثدكتوراه 

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