کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1663772 1008733 2016 5 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Gamma irradiation effects on the properties of indium zinc oxide thin films
ترجمه فارسی عنوان
اثرات تابش گاما بر خواص نازک اکسید روی ایندیوم
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد فناوری نانو (نانو تکنولوژی)
چکیده انگلیسی


• Amorphous and polycrystalline indium zinc oxide (IZO) films were gamma irradiated.
• The gamma radiation does not change the structure of IZO films.
• Gamma radiation induces small increases in thickness and roughness of IZO films.
• Radiation induced decrease in density was correlated to refractive index decrease.

Thin films of amorphous and polycrystalline indium zinc oxide (IZO) having various In/(In + Zn) nominal compositions from 0.3 to 0.9 were grown by the pulsed laser deposition technique at room temperature or at 400 °C on oxidized Si and quartz substrates. After deposition, the films were gamma irradiated at doses of 10, 20 and 30 kGy under Ar atmosphere. Grazing incidence X-ray diffraction investigations could not find measurable changes of the structure after irradiation. Simulations of the X-ray reflectivity (XRR) and diffuse scattering curves acquired from the films showed a small density decrease after irradiation, accompanied by an increase of the thickness and surface roughness. Spectroscopic ellipsometry investigations confirmed the increase of the IZO films' thickness after irradiation, being in agreement with the XRR results. Small changes in the refractive index, most probably caused by changes in the film density were also observed. Four point probe measurements showed very small resistivity increases after irradiation, with the films containing higher In concentration presenting negligible changes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Thin Solid Films - Volume 614, Part A, 1 September 2016, Pages 2–6
نویسندگان
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