Annealing time effect on the optical properties of Zn(O,OH,S) films onto ZnO seed layer under un-vacuum ambient

Authors : Fatma ÖZÜTOK, Emin YAKAR

Pages : 1704-1710

Doi:10.16984/saufenbilder.349758

View : 29 | Download : 8

Publication Date : 2018-12-01

Article Type : Research Paper

Abstract :In this study, Zn insert ignore into journalissuearticles values(O,OH,S); films were synthesized onto ZnO seed layers by chemical bath deposition, annealed at 500 °C. The differences of structural, morphological and detailed optical properties of the films were investigated depending on the annealing time insert ignore into journalissuearticles values(between 30 min. and 90 min.);. While samples of 30.min and 90 min. showed decomposed structures, sample of 60 min. showed different dimensions of nano-flower structures. Although all films have ZnO-hexzagonal crystal structure, the most obvious ZnS-related peaks were observed in sample of 90 min. Optical absorption edge is shifted at 362 nm from Uv-Vis spectroscopy. Although ZnO, Zninsert ignore into journalissuearticles values(OH); 2 vibration related peaks are so sharp, ZnS vibration peaks are so weak for all samples from FTIR. The PL intensities are differential with the annealing time but defect state-corresponding peaks are similar for each films.
Keywords : Zn O, OH, S, film, ZnO seed layer, photoluminescence spectroscopy, FTIR