Search Results - "Ferlauto, A. S."

Nafion-based composite electrolytes for proton exchange membrane fuel cells operating above 120 °C with titania nanoparticles and nanotubes as fillers by Matos, B.R., Santiago, E.I., Rey, J.F.Q., Ferlauto, A.S., Traversa, E., Linardi, M., Fonseca, F.C.

“…Nafion/titania-based fillers composites are prepared by casting and tested in proton exchange membrane fuel cells (PEMFCs) operating at elevated temperatures…”
Get full text

Self-assembled films of multi-wall carbon nanotubes used in gas sensors to increase the sensitivity limit for oxygen detection by Cava, C.E., Salvatierra, R.V., Alves, D.C.B., Ferlauto, A.S., Zarbin, A.J.G., Roman, L.S.

“…We have developed a self-assembly method to obtain multi-wall carbon nanotube films applied in resistive gas sensor devices. This self-assembly method produces…”
Get full text

Deformation induced semiconductor-metal transition in single wall carbon nanotubes probed by electric force microscopy by Barboza, A P M, Gomes, A P, Archanjo, B S, Araujo, P T, Jorio, A, Ferlauto, A S, Mazzoni, M S C, Chacham, H, Neves, B R A

“…We report the direct experimental observation of the semiconductor-metal transition in single-wall carbon nanotubes (SWNTs) induced by compression with the tip…”
Get full text

Thermal properties of Nafion–TiO2 composite electrolytes for PEM fuel cell by Matos, B. R., Aricó, E. M., Linardi, M., Ferlauto, A. S., Santiago, E. I., Fonseca, F. C.

“…Thermal analysis has been used to evaluate the stability, glass transition, and water retention of Nafion based polymer–ceramic electrolytes. These…”
Get full text

Carbothermal reduction of the YSZ–NiO solid oxide fuel cell anode precursor by carbon-based materials by Arico, E., Tabuti, F., Fonseca, F. C., de Florio, D. Z., Ferlauto, A. S.

“…The thermal behavior of the yttria-stabilized zirconia (YSZ) and nickel oxide (YSZ–NiO) composite mixtures with the addition of graphite, multiwall carbon…”
Get full text

Evolutionary phase diagrams for plasma-enhanced chemical vapor deposition of silicon thin films from hydrogen-diluted silane by Koh, Joohyun, Ferlauto, A. S., Rovira, P. I., Wronski, C. R., Collins, R. W.

“…Real-time optical studies have been applied to develop phase diagrams that characterize plasma-enhanced chemical vapor deposition (PECVD) of silicon thin films…”
Get full text

Neurotoxicity in zebrafish exposed to carbon nanotubes: Effects on neurotransmitters levels and antioxidant system by da Rocha, A.M., Kist, L.W., Almeida, E.A., Silva, D.G.H., Bonan, C.D., Altenhofen, S., Kaufmann, C.G., Bogo, M.R., Barros, D.M., Oliveira, S., Geraldo, V., Lacerda, R.G., Ferlauto, A.S., Ladeira, Luiz Orlando, Monserrat, J.M.

“…Given the increasing use of carbon nanotubes (CNT) in several industries and technological applications, it is essential to perform in vivo toxicological…”
Get full text

On the elastic constants of amorphous carbon nitride by Champi, A., Ferlauto, A.S., Alvarez, F., Silva, S.R.P., Marques, F.C.

“…Elastic and thermomechanical properties of amorphous carbon nitrite thin films as a function of nitrogen concentration are reported. The films were prepared by…”
Get full text

Graphene chemical vapor deposition at very low pressure: The impact of substrate surface self-diffusion in domain shape by Cunha, T. H. R., Ek-Weis, J., Lacerda, R. G., Ferlauto, A. S.

“…The initial stages of graphene chemical vapor deposition at very low pressures (<10−5 Torr) were investigated. The growth of large graphene domains (∼up to 100…”
Get full text

Nafion–titanate nanotubes composites prepared by in situ crystallization and casting for direct ethanol fuel cells by Matos, B.R., Isidoro, R.A., Santiago, E.I., Tavares, A.C., Ferlauto, A.S., Muccillo, R., Fonseca, F.C.

“…The physical properties relevant for the application of Nafion–titanate nanotubes composites in electrochemical devices such as water absorption capacity, ion…”
Get full text

Maximization of the open circuit voltage for hydrogenated amorphous silicon n–i–p solar cells by incorporation of protocrystalline silicon p -type layers by Koval, R. J., Chen, Chi, Ferreira, G. M., Ferlauto, A. S., Pearce, J. M., Rovira, P. I., Wronski, C. R., Collins, R. W.

“…In studies of hydrogenated amorphous silicon (a-Si:H) n–i–p solar cells fabricated by rf plasma-enhanced chemical vapor deposition (PECVD), we have found that…”
Get full text

Real time analysis of amorphous and microcrystalline silicon film growth by multichannel ellipsometry by COLLINS, R. W, KOH, J, FERLAUTO, A. S, ROVIRA, P. I, LEE, Y, KOVAL, R. J, WRONSKI, C. R

“…Real time spectroscopic ellipsometry (SE) has been applied to obtain insights into the growth of hydrogenated amorphous silicon (a-Si:H) and microcrystalline…”
Get full text

Determination of the band alignment of multi-walled carbon nanotubes decorated with cadmium sulfide by Silva, M.F.O., Paniago, R.M., Miquita, D.R., Pinheiro, C.B., Ladeira, L.O., Ferlauto, A.S., Rodrigues, W.N.

“…•MWCNTs and CdS composite were grown by the solvothermal method.•Photoelectron spectroscopy was used to analyze energy levels at the interface.•The interface…”
Get full text

Advances in multichannel ellipsometric techniques for in-situ and real-time characterization of thin films by Collins, R.W., An, Ilsin, Chen, Chi, Ferlauto, A.S., Zapien, J.A.

“…Recent advances in the design of multichannel ellipsometers based on rotating-element principles have significantly increased their power for applications…”
Get full text

Structural properties of amorphous carbon nitride films prepared by ion beam assisted deposition by Ferlauto, A.S., Champi, A., Figueroa, C.A., Ribeiro, C.T.M., Marques, F.C., Alvarez, F.

“…Amorphous carbon nitride films (a-CN x ) with nitrogen concentration ranging from 0 to 30 at.% were prepared by ion beam assisted deposition at different…”
Get full text

Chemical vapor deposition of multi-walled carbon nanotubes from nickel/yttria-stabilized zirconia catalysts by FERLAUTO, A. S, DE FLORIO, D. Z, FONSECA, F. C, ESPOSITO, V, MUCCILLO, R, TRAVERSA, E, LADEIRA, L. O

Get full text

New material for low-dose brachytherapy seeds: Xe-doped amorphous carbon films with post-growth neutron activated 125I by Gonçalves, R.G.F., Pinheiro, M.V.B., Lacerda, R.G., Ferlauto, A.S., Ladeira, L.O., Krambrock, K., Leal, A.S., Viana, G.A., Marques, F.C.

“…We report a novel material for use in 125I brachytherapy that consists of amorphous carbon films grown by ion-beam-assisted deposition and doped with Xe (5…”
Get full text

Optimization of a-Si:H p-i-n solar cells through development of n-layer growth evolution diagram and large area mapping by Huang, Z., Dahal, L. R., Salupo, C., Ferlauto, A. S., Podraza, N. J., Collins, R. W.

“…A growth evolution diagram has been developed to guide plasma-enhanced chemical vapor deposition (PECVD) of n-type hydrogenated amorphous silicon (a-Si:H) and…”
Get full text

Analytical model for the optical functions of amorphous semiconductors and its applications for thin film solar cells by Ferlauto, A.S., Ferreira, G.M., Pearce, J.M., Wronski, C.R., Collins, R.W., Deng, X., Ganguly, G.

“…We have developed a Kramers–Kronig consistent analytical expression to fit the dielectric functions (ε 1, ε 2) of hydrogenated amorphous silicon (a-Si:H)-based…”
Get full text

Advances in plasma-enhanced chemical vapor deposition of silicon films at low temperatures by Collins, R.W., Ferlauto, A.S.

“…The properties of silicon films prepared by plasma-enhanced chemical vapor deposition (PECVD) at low temperatures (<400 °C) are controlled by the physical and…”
Get full text