کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1667615 1008855 2012 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Advances in understanding of transparent conducting oxides
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
پیش نمایش صفحه اول مقاله
Advances in understanding of transparent conducting oxides
چکیده انگلیسی

The band structures of some transparent conducting oxides are calculated using the screened exchange hybrid functional. The optical properties and band gaps of the CuAlO2 defossalite family follow the expected chemical trends. The limits to the doping of n- and p-type oxides are examined in terms of the dopant compensation by native defects. The accessible range of the Fermi energy under doping is that for which compensating native defects have a positive formation energy. These energy limits are aligned on a band offset diagram. N-dopable oxides have a conduction band minimum that lies deep below the vacuum level, while p-dopable oxides have a valence band top that lies high towards the vacuum level. The nature of electron conduction in amorphous InGaZnOx type oxides is discussed, in terms of the nature of localisation and the density of states at the mobility edge.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 520, Issue 10, 1 March 2012, Pages 3714–3720
نویسندگان
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