کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1554122 998770 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Ti-incorporated ZnO films synthesized via magnetron sputtering and its optical properties
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد مواد الکترونیکی، نوری و مغناطیسی
پیش نمایش صفحه اول مقاله
Ti-incorporated ZnO films synthesized via magnetron sputtering and its optical properties
چکیده انگلیسی

Undoped and Ti-doped ZnO films were deposited using radio frequency reactive magnetron sputtering at various sputtering powers. The crystal structures, surface morphology, chemical state and optical properties in Ti-doped ZnO films were systematically investigated via X-ray diffraction (XRD), atomic force microscopy (AFM), X-ray photoelectron spectroscopy (XPS) and ultraviolet visible (UV–Vis) spectrophotometer. Results indicated that titanium atoms may replace zinc atomic sites substitutionally or incorporate interstitially in the hexagonal lattices, and a moderate quantity of Ti atoms exist in the form of sharing the oxygen with Zn atoms and hence improve the (0 0 2) orientation. The photoluminescence (PL) spectra of the Ti-doped ZnO films contain one main blue peak, whose intensity increased with the increase of sputtering power. Our results indicated that a higher compressive stress in Ti-doped ZnO films results in a lower optical band gap and a lower transmittance, and various Ti impurities can affect the concentration of the interstitial Zn and O vacancies.


► Ti-doped ZnO films were deposited using magnetron sputtering technique.
► The crystal structures, surface morphology and optical properties were investigated.
► Ti-doped ZnO films showed a stronger preferred orientation toward c-axis.
► Optical transmission, absorption and PL of Ti-doped ZnO films was discussed.
► The intensity of blue emission peak increased with the increase of sputtering power.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Superlattices and Microstructures - Volume 51, Issue 4, April 2012, Pages 544–551
نویسندگان
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