Author/Authors :
Gu، نويسنده , , Feng and Fen Wang، نويسنده , , Shu and Feng Song، نويسنده , , Chun and Kai Lü، نويسنده , , Meng and Xin Qi، نويسنده , , Yong and Jun Zhou، نويسنده , , Guang and Xu، نويسنده , , Dong and Rong Yuan، نويسنده , , Duo، نويسنده ,
Abstract :
Nanometer-scale SnO2 particles have been synthesized by a simple sol–gel method. The samples were characterized by X-ray diffraction, Fourier transform infrared (FTIR), UV–Vis absorption and photoluminescence spectroscopy. The as-prepared SnO2 nanoparticles appear to be single tetragonal crystalline phase and the diameter is about 2.6 nm. The origin of luminescence is assigned to the recombination of electrons in singly occupied oxygen vacancies with photoexcited holes in the valence band.
