کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1495884 992949 2010 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Bismuth germanate films prepared by Pechini method
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Bismuth germanate films prepared by Pechini method
چکیده انگلیسی

Bismuth germanate films were prepared by dip coating and spin coating techniques and the dependence of the luminescent properties of the samples on the resin viscosity and deposition technique was investigated. The resin used for the preparation of the films was obtained via Pechini method, employing the precursors Bi2O3 and GeO2. Citric acid and ethylene glycol were used as chelating and cross-linking agents, respectively. Results from X-ray diffraction and Raman spectroscopy indicated that the films sintered at 700 °C for 10 h presented the single crystalline phase Bi4Ge3O12. SEM images of the films have shown that homogeneous flat films can be produced by the two techniques investigated. All the samples presented the typical Bi4Ge3O12 emission band centred at 505 nm. Films with 3.1 μm average thickness presented 80% of the luminescence intensity registered for the single crystal at the maximum wavelength.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optical Materials - Volume 32, Issue 10, August 2010, Pages 1286–1290
نویسندگان
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