کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1786504 1023417 2013 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Electronic transport and carrier concentration in conductive ZnO:Ga thin films
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک ماده چگال
پیش نمایش صفحه اول مقاله
Electronic transport and carrier concentration in conductive ZnO:Ga thin films
چکیده انگلیسی

Transparent and conductive Ga-doped ZnO (ZnO:Ga) films were post-annealed after sputter deposition, and their structural and electrical properties were investigated. Post-annealing led to an improvement of crystallinity along the [001] direction, but did not change lateral grain size. Therefore, carrier concentration and electron mobility of films were analyzed as a function of crystallinity. The electrical parameters were obtained with both optical reflectance based on the Drude free-electron model and the Hall method, and similar tendencies were observed within the two methods. Even though the lowest resistivity was demonstrated by the film annealed at 550 °C, the optimum values for carrier concentration and mobility were observed in films with different post-annealing temperatures.


► Electrical parameters of Ga-doped ZnO films were deduced using the Drude model.
► Carrier concentration and electron mobility were analyzed in terms of crystallinity.
► The Drude model and Hall method showed similar tendencies in electrical properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Current Applied Physics - Volume 13, Issue 2, March 2013, Pages 415–418
نویسندگان
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