27 مهر 1398
ابراهيم غلامي حاتم

ابراهیم غلامی حاتم

مرتبه علمی: استادیار
نشانی: کیلومتر 4 جاده اراک- دانشگاه ملایر- گروه فیزیک
تحصیلات: دکترای تخصصی / فیزیک-فیزیک هسته ای
تلفن: +98 (81) 3333 9840 (348)
دانشکده: علوم پایه

مشخصات پژوهش

عنوان
Effect of deposition temperature on structural, optical properties and configuration of CdSe nanocrystalline thin films deposited by chemical bath deposition
نوع پژوهش مقاله چاپ شده
کلیدواژه‌ها
CdSe, Thin film, Chemical bath deposition, Deposition temperature
سال
2016
مجله MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
پژوهشگران ابراهیم غلامی حاتم ، نادر قبادی

چکیده

CdSe nanoparticle thin films were deposited on glass substrates by the chemical bath deposition (CBD) method at low deposition temperature ranging from room temperature upto50 °C while the pH of the bath was kept constant at 12.1.The structural and morphologica lvariation were investigated by X-ray diffraction (XRD and scanning electron microscopy (SEM) technique.The energy band gap and optical properties were characterized by the absorbance spectra. Rutherford backscattering spectroscopy (RBS) analysis reveals the excess of Cd rather than Se in depth profile along the thin film thickness. The prepared CdSe nanoparticles have cubic structure and by increasing the temperature the deposited films become continues,homogeneous and tightly adherent.The results also revealed that by increasing the deposition .temperature from room temperatureupto50 °C, thebandgapdecreasesfrom3.52eVupto1.84eV