کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1480590 1510418 2015 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Determination of thermal diffusivity and optical gap of an amorphous P20Se80 alloy through photoacoustic measurements
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Determination of thermal diffusivity and optical gap of an amorphous P20Se80 alloy through photoacoustic measurements
چکیده انگلیسی
We investigated the thermal diffusivity and optical properties at room temperature of an amorphous P20Se80 alloy produced by mechanical alloying considering two apparatuses based on the photoacoustic technique. The room temperature thermal diffusivity αs of P20Se80 was determined using the open photoacoustic cell configuration considering the thermal diffusion and thermoelastic bending effects, and we found that P20Se80 has the highest reported value of αs among amorphous alloys produced by mechanical alloying. The optical absorption and the optical gap were obtained through a photoacoustic spectroscopy apparatus, and the optical gap was determined to be in the near infrared region. The alloy presents strong absorption in the UV and visible regions, which suggests possible applications in heat transfer or cooling devices, and photodetectors.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Non-Crystalline Solids - Volume 426, 15 October 2015, Pages 43-46
نویسندگان
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