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.
Writers: Iêda M. M. Paino, Fernanda J. Gonçalves, Flavio L. Souza, and Valtencir Zucolotto Keywords: fibroblast L929 cell; human cervical cancer cell; nanotoxicology; reactive oxygen species; zinc oxide nanoparticles; Abstract: Nanostructured zinc oxide (ZnO) materials have been […]
Writers: Lorena Athie Goulart and Lucia Helena Mascaro Keywords: Multi-walled carbon nanotubes; Nickel oxide nanoparticles; Phenolics; Electrodeposition; Simultaneous determination Abstract: This work reports the electrochemical determination of bisphenol A (BPA), hydroquinone (HQ) and catechol (CC) using glassy carbon […]
Writers: Hasina H. Ramanitra, Simon A. Dowland, Bruna A. Bregadiolli, Michael Salvador, Hugo Santos Silva, Didier Bégué, Carlos F. O. Graeff, Heiko Peisert, Thomas Chassé, Sambatra Rajoelson, Andres Osvet, Christoph J. Brabec, Hans-Joachim Egelhaaf, Graham E. Morse, Andreas Distler and Roger C. Hiorns Keywords: polymer; photovoltaic cells; PCBM Abstract: The first oligomerisation of phenyl-C61-butyric acid […]