پديدآورندگان :
Karimi B نويسنده Dept. of Oral & Maxillofacial Pathology, School of Dentistry, Ahvaz University of Medical Sciences, Ahvaz, IRAN , Arabi A. M. نويسنده Assistant Professor, Department of Nanomaterials and Nanocoatings, Institute for Color Science and Technology, P. O. Box: 16765-654 , Shafiee Afarani M نويسنده Department of Materials Engineering, University of Sistan and Bluchestan, Zahedan, Iran
چكيده فارسي :
CdSe Quantum dots (QDs) prepared by hydrothermal method. X-ray diffraction patterns confirmed the formation of wurtzite structure of CdSe. HR-TEM image showed the formation of CdSe primary particles up to 3 nm, less than Bohr radius and indicated the formation of well-crystalline QDs. Effect of hydrothermal temperature and soaking time on the PL intensity and peak position was investigated. The results showed that the best sample obtained at 120 °C hydrothermal temperature and 60 min soaking time. Moreover, the band gap of the best sample was determined around 3.2 eV which was high in comparison with CdSe bulk sample (2.8 eV).
