Publications

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Conference Proceedings
Martins, R., L. Guimarães, N. Carvalho, A. M. Andrade, S. L. L. Corgnier, and M. S. Sanematsu. "Analysis of a new production technique for amorphous silicon solar cells”. In Fifth European Communities Photovoltaic Solar Energy Conference. Athens, Greece, 1983.
Journal Article
M., Fernandes, Vygranenko Y., Vieira M., Lavareda G., Nunes Carvalho de C., and Amaral A. "Automated rf-PERTE system for room temperature deposition of TCO coatings." Energy Procedia 102 (2016): 96.
Merino, E. G., G. Lavareda, P. Brogueira, A. Amaral, C. Nunes de Carvalho, and PL Almeida. "InOx thin films deposited by plasma assisted evaporation: Application in light shutters." VACUUM 107 (2014): 116-119. Abstract

{An integration of undoped InOx and commercial ITO thin films into laboratory assembled light shutter devices is made. Accordingly, undoped transparent conductive InOx thin films, about 100 nm thick, are deposited by radiofrequency plasma enhanced reactive thermal evaporation (rf-PERTE) of indium teardrops with no intentional heating of the glass substrates. The process of deposition occurs at very low deposition rates (0.1-0.3 nm/s) to establish an optimized reaction between the oxygen plasma and the metal vapor. These films show the following main characteristics: transparency of 87% (wavelength

M., Vieira, Fantoni A., Fernandes M., Louro P., Lavareda G., and Nunes Carvalho de C. "Pinpi'n and pinpii'n multilayer devices with voltage controlled readout"." Journal of Nanoscience and Nanotechnology 9 (2009): 4022.
Ribeiro, Celso, Pedro Brogueira, Guilherme Lavareda, Carlos Nunes de Carvalho, Ana Amaral, Luis Santos, Jorge Morgado, Ulrich Scherf, and Vasco D. B. Bonifacio. "Ultrasensitive microchip sensor based on boron-containing polyfluorene nanofilms." BIOSENSORS & BIOELECTRONICS 26 (2010): 1662-1665. Abstract

A fluorene-based pi-conjugated copolymer with on-chain dibenzoborole units was used in the development of a nanocoated gold interdigitated microelectrode array device which successfully detects fluoride in a broad range of concentrations (10(-11)-10(-4) M) in aqueous solution, upon impedance spectroscopy measurements. A calibration curve obtained over this range of concentrations and a new analytical method based on impedance spectroscopy measurements in aqueous solution is proposed. The sensor nanofilm was produced by spin-coating and diagnosed via spectroscopic ellipsometry, AFM, and electrically conductivity techniques. Changes in the conductivity due to the boron-fluoride complex formation seem to be the major mechanism behind the dependence of impedimetric results on the fluoride concentration. (C) 2010 Elsevier B.V. All rights reserved.