کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
8147035 1524118 2015 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
In(AsN) mid-infrared emission enhanced by rapid thermal annealing
موضوعات مرتبط
مهندسی و علوم پایه فیزیک و نجوم فیزیک اتمی و مولکولی و اپتیک
پیش نمایش صفحه اول مقاله
In(AsN) mid-infrared emission enhanced by rapid thermal annealing
چکیده انگلیسی
We report a substantial increase in the quality and photoluminescence (PL) emission efficiency of In(AsN) dilute nitride alloys grown on both p-type InAs and semi-insulting GaAs substrates, in response to rapid thermal annealing. At 4 K the PL emission efficiency increases by 25 times due to a reduction in non-radiative Shockley-Read-Hall recombination originating from elimination of point defects. For annealing temperatures up to 500 °C the activation energy for thermal quenching increases by a factor of three, with no change in the residual electron concentration and mobility. Temperature dependent PL, together with X-ray diffraction measurements, reveals an improvement in compositional uniformity. Our results are significant for photonic device applications and particularly for the development of cryogenic mid-infrared photodiodes, monolithic detectors and focal plane arrays.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Infrared Physics & Technology - Volume 68, January 2015, Pages 138-142
نویسندگان
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