کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1333123 979067 2007 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Synthesis, crystal and band structures, and optical properties of a new lanthanide–alkaline earth tellurium(IV) oxide: La2Ba(Te3O8)(TeO3)2
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی معدنی
پیش نمایش صفحه اول مقاله
Synthesis, crystal and band structures, and optical properties of a new lanthanide–alkaline earth tellurium(IV) oxide: La2Ba(Te3O8)(TeO3)2
چکیده انگلیسی

A new quaternary lanthanide alkaline–earth tellurium(IV) oxide, La2Ba(Te3O8)(TeO3)2, has been prepared by the solid-state reaction and structurally characterized. The compound crystallizes in monoclinic space group C2/c with a=19.119(3), b=5.9923(5), c=13.2970(19) Å, β=107.646(8)°, V=1451.7(3) Å3 and Z=4. La2Ba(Te3O8)(TeO3)2 features a 3D network structure in which the cationic [La2Ba(TeO3)2]4+ layers are cross-linked by Te3O84− anions. Both band structure calculation by the DFT method and optical diffuse reflectance spectrum measurements indicate that La2Ba(Te3O8)(TeO3)2 is a wide band-gap semiconductor.

A new quaternary lanthanide alkaline–earth tellurium(IV) oxide, La2Ba(Te3O8)(TeO3)2, has been prepared by the solid-state reaction and structurally characterized. The structure of La2Ba(Te3O8)(TeO3)2 is 3D network in which the cationic [La2Ba(TeO3)2]4+ layers are cross-linked by Te3O84− anions. Both band structure calculation by the DFT method and optical diffuse reflectance spectrum measurements indicate that La2Ba(Te3O8)(TeO3)2 is a wide band-gap semiconductor.Figure optionsDownload as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Solid State Chemistry - Volume 180, Issue 5, May 2007, Pages 1764–1769
نویسندگان
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