کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1793928 1023685 2008 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Structural and optical properties of polar and non-polar ZnO films grown by MOVPE
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Structural and optical properties of polar and non-polar ZnO films grown by MOVPE
چکیده انگلیسی

Polar and non-polar ZnO films were synthesized on different planecuts (a-, c- and R-planes) of Al2O3 substrates by metal-organic vapor-phase epitaxy. Polar ZnO films were obtained on c- and a-Al2O3 substrates whereas non-polar ZnO films were obtained on R-Al2O3 substrates. In spite of generally better crystalline quality and optical properties of polar ZnO films, there are two characteristic photoluminescence peaks detected in the non-polar material only. The peaks (at 3.048 and 2.966 eV) are tentatively assigned to electron transitions involving zinc vacancy and oxygen interstitial defect states, respectively.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Crystal Growth - Volume 310, Issue 23, 15 November 2008, Pages 5020–5024
نویسندگان
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