Title :
Optical properties of samarium doped ZnO thin films
Author :
Rao, T. Prasada ; Raj, S. Govinth ; Santhosh Kumar, M.C.
Author_Institution :
Dept. of Phys., KL Univ., Guntur, India
Abstract :
Samarium doped ZnO (Sm:ZnO) thin films were deposited onto glass substrates by spray pyrolysis. The Sm:ZnO thin films were annealed in various atmosphere such as air (ambient), oxygen and nitrogen. A number of techniques, including X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy, UV-visible and photoluminescence (PL) were used to characterize the obtained Sm:ZnO thin films. Raman spectroscopy and XRD studies were conform wurzite structure of Sm:ZnO thin films. PL studies shown that the broad emission spectra, which includes UV to green-yellow (visible) region.
Keywords :
II-VI semiconductors; Raman spectra; X-ray diffraction; annealing; photoluminescence; pyrolysis; samarium; scanning electron microscopy; semiconductor growth; semiconductor thin films; spray coating techniques; ultraviolet spectra; visible spectra; wide band gap semiconductors; zinc compounds; Raman spectroscopy; SEM; SiO2; UV-visible spectroscopy; X-ray diffraction; XRD; ZnO:Sm; ambient air atmosphere; annealing; broad emission spectra; glass substrates; green-yellow region; nitrogen atmosphere; optical properties; oxygen atmosphere; photoluminescence; samarium doped zinc oxide thin films; scanning electron microscopy; spray pyrolysis; wurzite structure; Annealing; Atmosphere; Biomedical optical imaging; Nitrogen; Optical films; Zinc oxide; Optical properties; Samarium doped ZnO; Structural properties; Thin films;
Conference_Titel :
Devices, Circuits and Systems (ICDCS), 2014 2nd International Conference on
Conference_Location :
Combiatore
DOI :
10.1109/ICDCSyst.2014.6926170
