کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
239855 466232 2016 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effect of Deposition Temperature on Structural and Optical Properties of Chemically Sprayed ZnS Thin Films
ترجمه فارسی عنوان
اثر درجه حرارت رسوب بر روی خواص ساختاری و اپتیکی خلاء فیلم های نازک ZnS با اسپری شیمیایی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی

Zinc sulfide (ZnS) thin films have been successfully deposited via spray pyrolysis using an aqueous solution of thiourea and zinc acetate onto glass substrate. The effect of varying substrate temperature (150, 200,250 and 300 °C) on structure and optical properties is presented. The films have been characterized by X- ray diffraction (XRD), UV-Vis-NIR spectrometry, photoluminescence (PL) spectroscopy and field emission scanning electron microscopy (FESEM). All the deposited ZnS films exhibit a cubic structure, while crystallinity and morphology are found to depend on spray temperature. PL analysis indicates the presence of violet and green emissions arising from Zn and S vacancies. The value of bandgap of ZnS films is found to decrease slightly with increasing substrate temperature; varying in the range 3.52–3.25 eV, most probably associated with the formation of Zn(S,O) solid solution.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Procedia Chemistry - Volume 19, 2016, Pages 485-491