Synthesis and Optical Properties of New Double Perovskite Oxides A2LaVO6 " A= Sr,Ba,Ca "
| المؤلف الرئيسي: | Othman, Ebtihal Ahmed Alhaj (Author) |
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| مؤلفين آخرين: | Al badawi, Abd Alrahman Mohamed (Advisor) |
| التاريخ الميلادي: |
2015
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| موقع: | الخرطوم |
| الصفحات: | 1 - 42 |
| رقم MD: | 831269 |
| نوع المحتوى: | رسائل جامعية |
| اللغة: | الإنجليزية |
| الدرجة العلمية: | رسالة ماجستير |
| الجامعة: | جامعة النيلين |
| الكلية: | كلية الدراسات العليا |
| الدولة: | السودان |
| قواعد المعلومات: | Dissertations |
| مواضيع: | |
| رابط المحتوى: |
عدد مرات التحميل
7
| المستخلص: |
New double perovskite oxide A2LaVO6 where A= Ba, Sr and Ca were synthesized through solid state reaction route. The information about the molecular bonding is obtained from the FTIR spectra. The calculated band gap from UN-Visible spectra characterizes the (insulating) nature of the material and a data analysis the result showed that all posses high band gab energy (3.9 – 4.2 – 4.4 eV) respectively. The absorption is (1.5, 1.6 and 4.7), an extinction coefficient (0.002, 0.008 and 0.082), for all samples and A ={Ba, Sr, Ca}. |
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