Writers: F. Willian de S. Lucas, Alan R.F. Lima, Lucia H. Mascaro
Keywords: Solar cell, chalcopyrite, CIGSe, semiconductor electrodeposition
Abstract: The codeposition of Cu, In, Ga and Se from pH 1.5 at Na2SO4/H2SO4 solution onto fluorine doped tin oxide (FTO) was studied. The effects of Triton 100-X as a noncomplexing and nonionic additive in the electrodeposition process was evaluated. At optimised experimental conditions was possible to obtain of Ga-doped CuInSe2 films (CIGSe). The films presented two different morphologies, one layer formed by globular structures and another layer constituted of lamellar clusters. The major phase in the films was CIGSe, but binary phases as InSe and CuSe were also identified. The value of the band gap was at about 1.35 eV for all the films. It was observed that the additive presence in electrolytic bath reduces the number of surface defects and increases the crystallinity and purity of the electrodeposited CIGSe.
Electrochemical Deposition of the Single Phase TlxCu3-xSe2 Thin Films Abstract: In spite of selenide semiconductors having a wide application area, TlCu2Se2(TCSe) is poorly studied and its synthesis by non-vacuum or thermic methodology in film form is […]
Writers: Milan Zunic; Goran Brankovic; Cesar Renato Foschini; Mario Cilense; Elson Longo; José Arana Varela Keywords: Fuel cells; Anode; Cermet; Protonic conductor Abstract: Optimization of the major properties of anodes based on proton conductors, such […]
Elucidating the real-time Ag nanoparticle growth on alpha-Ag2WO4 during electron beam irradiation: experimental evidence and theoretical insights Abstract: Why and how Ag is formed when electron beam irradiation takes place on alpha-Ag2WO4 in a vacuum transmission […]