title: Synthesis and microstructural studies of annealed Cu(2)O/Cu(x)S bilayer as transparent electrode material for photovoltaic and energy storage devices.
abstract: Cu2 O thin film and a transparent bilayer have been fabricated by electrodeposition method. The growths were obtained in potentiostatic mode with gradual degradation of anodic current. X-ray diffraction (XRD) study showed that the bilayer is polycrystalline and it possesses mixture of different crystallite phases of copper oxides. Surface morphology of the films was investigated by scanning electron microscopy (SEM). The SEM images revealed that the films were uniformly distributed and the starting material (Cu2 O) had cubical structure. Grains agglomeration and crystallinity were enhanced by annealing. Optical studies indicated that all the samples have direct allowed transition. Energy band gap of the bilayer film was reduced by annealing treatment thus corroborating quantum confinement upshot.
authors.affiliation: School of Chemistry and Physics, University of KwaZulu Natal Pietermaritzburg, Scottsville, South Africa.|Department of Physics, Obafemi Awolowo University, Ile-Ife, Nigeria.
authors.forename: B A
authors.initials: BA
authors.lastname: Taleatu
authors.affiliation: School of Chemistry and Physics, University of KwaZulu Natal Pietermaritzburg, Scottsville, South Africa.|Department of Physics, Omdurman Islamic University, Khartoum, Sudan.
authors.forename: E A A
authors.initials: EAA
authors.lastname: Arbab
authors.affiliation: Department of Physics, Obafemi Awolowo University, Ile-Ife, Nigeria.
authors.forename: E
authors.initials: E
authors.lastname: Omotoso
authors.affiliation: School of Chemistry and Physics, University of KwaZulu Natal Pietermaritzburg, Scottsville, South Africa.
authors.forename: G T
authors.initials: GT
authors.lastname: Mola
keywords: Annealing; bilayer; crystallinity; electrodeposition; energy band gap; morphology