Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=53126#.VLXQ3MnQrzE Author(s)    Ayşe Kaya Balta , Özlem Ertek , Nail Eker , İbrahim Okur Affiliation(s) Department of Physics, Sakarya University, Sakarya, Turkey . ABSTRACT In this study, a new route to produce pure and composite ZnO-MgO thin films has been presented. In the process the pure ZnO thin films were the starting point, ending up with MgO by doping various percentages (from 0% to 100%) of Mg with the help of sol-gel spin coating technique. The crystal phases in all doping levels have been obtained when the samples annealed at 600℃ for a duration of 6 hours. The X-ray diffraction (XRD) spectra, the scanning electron microscopy (SEM) micrographs and UV-Vis absorption spectra have been performed to elucidate the composed film structures.   KEYWORDS ZnO , MgO , Doping , Microscope Glass , Spin Coating , Thin Film Cite this paper Balta, A...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50651#.VEh6HVfHRK0 Author(s) Di Gu 1* , Yanji Zhu 1 , Zhigang Xu 2 , Nan Wang 2 , Chuang Zhang 2 Affiliation(s) 1 College of Chemistry and Chemical Engineering, Northeast Petroleum University, Qaqing, China . 2 Daqing Oilfield Engineering Co. Ltd., Qaqing, China . ABSTRACT Dye-sensitized solar cells (DSC) play a leading role in the third generation photovoltaics due to their low cost, easy fabrication process, high conversion efficiency and good stability. As a media of dye adsorption, electron transport, and electrolyte diffusion, the nanocrystalline semiconductor photoanode plays a key role during light-to-electricity conversion ...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50576#.VEX1ZFfHRK0 Author(s) Radhouane Bel-Hadj-Tahar 1,2 , Abdellatif Belhadj Mohamed 2 Affiliation(s) 1 Department of Chemistry, Faculty of Science, King Khalid University, Abha, KSA . 2 Photovoltaic Laboratory, Research and Technology Center of Energy, Borj-Cedria Science and Technology Park, Hammem-Lif, Tunisia . ABSTRACT Transparent conducting films of zinc oxide and indium-doped zinc oxide have been prepared by a simple and economical sol-gel technique. This process is feasible for the fabrication of high quality TCO thin films when the processing parameters are optimized. It was found that the out-diffusion of oxygen during...