کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
5426122 1395877 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Growth and structure of MBE grown TiO2 anatase films with rutile nano-crystallites
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی تئوریک و عملی
پیش نمایش صفحه اول مقاله
Growth and structure of MBE grown TiO2 anatase films with rutile nano-crystallites
چکیده انگلیسی

We have explored the systematics of TiO2 polymorph nucleation during film growth by molecular beam epitaxy on perovskite substrates. The accidental lattice match between anatase (0 0 1) and LaAlO3(0 0 1) or SrTiO3(0 0 1) typically results in anatase nucleation at the interface. However, the growth conditions dictate whether or not rutile also nucleates, and the associated morphological and structural properties of the composite film. Four symmetry equivalent epitaxial orientations of rutile on anatase are observed when rutile nucleates as discrete particles on LaAlO3(0 0 1). Such films constitute model systems for studying the anatase/rutile interface, which is of considerable current interest in photochemistry.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Surface Science - Volume 601, Issue 6, 15 March 2007, Pages 1582-1589
نویسندگان
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