LEADER |
01904nam a22003137a 4500 |
001 |
1472491 |
041 |
|
|
|a eng
|
100 |
|
|
|9 446468
|a Othman, Ebtihal Ahmed Alhaj
|e Author
|
245 |
|
|
|a Synthesis and Optical Properties of New Double Perovskite Oxides A2LaVO6 " A= Sr,Ba,Ca "
|
260 |
|
|
|a الخرطوم
|c 2015
|
300 |
|
|
|a 1 - 42
|
336 |
|
|
|a رسائل جامعية
|
502 |
|
|
|b رسالة ماجستير
|c جامعة النيلين
|f كلية الدراسات العليا
|g السودان
|o 0425
|
520 |
|
|
|a 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}.
|
653 |
|
|
|a أكاسيد البروفسكايت الثنائية
|a المعالجة الحرارية
|a التفاعلات الكيميائية
|
700 |
|
|
|9 446470
|a Al badawi, Abd Alrahman Mohamed
|e Advisor
|
856 |
|
|
|u 9818-006-001-0425-T.pdf
|y صفحة العنوان
|
856 |
|
|
|u 9818-006-001-0425-A.pdf
|y المستخلص
|
856 |
|
|
|u 9818-006-001-0425-C.pdf
|y قائمة المحتويات
|
856 |
|
|
|u 9818-006-001-0425-F.pdf
|y 24 صفحة الأولى
|
856 |
|
|
|u 9818-006-001-0425-1.pdf
|y 1 الفصل
|
856 |
|
|
|u 9818-006-001-0425-2.pdf
|y 2 الفصل
|
856 |
|
|
|u 9818-006-001-0425-3.pdf
|y 3 الفصل
|
856 |
|
|
|u 9818-006-001-0425-4.pdf
|y 4 الفصل
|
856 |
|
|
|u 9818-006-001-0425-5.pdf
|y 5 الفصل
|
856 |
|
|
|u 9818-006-001-0425-R.pdf
|y المصادر والمراجع
|
930 |
|
|
|d y
|
995 |
|
|
|a Dissertations
|
999 |
|
|
|c 831269
|d 831269
|