Eur. Phys. J. Appl. Phys.
Volume 64, Number 3, December 2013
|Number of page(s)||7|
|Published online||09 December 2013|
The influence of CdS quantum dots incorporation on the properties of CdO thin films
Department of Energy Systems Engineering, Faculty of Engineering, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
2 Department of Chemical Engineering, Selçuk University, Advanced Technology Research and Application Center, 42075 Konya, Turkey
3 Department of Chemistry, Faculty of Science, Anadolu University, 26470 Eskişehir, Turkey
4 Department of Materials Science and Engineering, Faculty of Engineering, Karamanoğlu Mehmetbey University, 70100 Karaman, Turkey
a e-mail: firstname.lastname@example.org
Revised: 30 October 2013
Accepted: 6 November 2013
Published online: 9 December 2013
The aim of our work is to obtain nano-structured cadmium oxide (CdO) thin films by sol-gel spin coating method and to investigate the effects of cadmium sulfide quantum dots (CdS QDs) doping on the structural modification and surface morphology evolution. X-ray diffraction (XRD) results show that the intensities of the peaks of the crystalline phase increase with the increase in CdS QDs concentrations. From scanning electron microscopy (SEM) images, the distinct variations in the morphology of the thin films were also observed. In addition, the evolution of surface morphology, roughness and granularity has been characterized by atomic force microscopy (AFM). Moreover, we have performed the optical characteristics of the thin films such as transparency, energy band gap and Urbach tail. The optical band gap of the thin films increases from 2.23 to 2.51 eV with the increase in CdS QDs concentrations due to the Moss–Burstein effect. The enhanced values of the transparency, energy band gap and crystallity indicate that addition of CdS QDs can be used to modify the optical, structural and morphological properties of CdO thin films.
© EDP Sciences, 2013
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.