Publications

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2001
Ribeiro, J. P., A. P. Jesus, B. Braizinha, J. Cruz, R. Mateus, and J. V. Pinto, "Experimental study of the F-19(p,alpha gamma)O-16 reaction", Nuclear Physics A, vol. 688, issue 1-2, pp. 468C-471C, 2001. AbstractWebsite
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2002
Casella, C., H. Costantini, a. Lemut, B. Limata, D. Bemmerer, R. Bonetti, C. Broggini, L. Campajola, P. Cocconi, P. Corvisiero, J. Cruz, a. D'Onofrio, a. Formicola, Z. Fülöp, G. Gervino, L. Gialanella, a. Guglielmetti, C. Gustavino, G. Gyurky, a. Loiano, G. Imbriani, P. a. Jesus, M. Junker, P. Musico, a. Ordine, F. Parodi, M. Parolin, J. V. Pinto, P. Prati, J. P. Ribeiro, V. Roca, D. Rogalla, C. Rolfs, M. Romano, C. Rossi-Alvarez, a. Rottura, F. Schuemann, E. Somorjai, F. Strieder, F. Terrasi, H. P. Trautvetter, a. Vomiero, and S. Zavatarelli, "{A new setup for the underground study of capture reactions}", Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, vol. 489, pp. 160–169, 2002. Abstract

For the study of astrophysically relevant capture reactions in the underground laboratory LUNA a new setup of high sensitivity has been implemented. The setup includes a windowless gas target, a 4$π$ BGO summing crystal, and beam calorimeters. The setup has been recently used to measure the d(p,$\gamma$)3He cross-section for the first time within its solar Gamow peak, i.e. down to 2.5keV c.m. energy. The features of the optimized setup are described. © 2002 Elsevier Science B.V. All rights reserved.

Raiola, F., P. Migliardi, G. Gyurky, M. Aliotta, A. Formicola, R. Bonetti, C. Broggini, L. Campajola, P. Corvisiero, H. Costantini, J. Cruz, A. D'Onofrio, Z. Fulop, G. Gervino, L. Gialanella, A. Guglielmetti, G. Imbriani, C. Gustavino, A. P. Jesus, M. Junker, R. W. Kavanagh, P. G. P. Moroni, A. Ordine, J. V. Pinto, P. Prati, V. Roca, J. P. Ribeiro, D. Rogalla, C. Rolfs, M. Romano, F. Schumann, D. Schurmann, E. Somorjai, F. Strieder, F. Terrasi, H. P. Trautvetter, and S. Zavatarelli, "Enhanced electron screening in d(d, p)t for deuterated Ta", European Physical Journal A, vol. 13, issue 3, pp. 377-382, 2002. AbstractWebsite
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Casella, C., H. Costantini, A. Lemut, B. Limata, R. Bonetti, C. Broggini, L. Campajola, P. Corvisiero, J. Cruz, A. D'Onofrio, A. Formicola, Z. Fulop, G. Gervino, L. Gialanella, A. Guglielmetti, C. Gustavino, G. Gyurky, G. Imbriani, A. P. Jesus, M. Junker, A. Ordine, J. V. Pinto, P. Prati, J. P. Ribeiro, V. Roca, D. Rogalla, C. Rolfs, M. Romano, C. Rossi-Alvarez, F. Scheumann, E. Somorjai, O. Straniero, F. Strieder, F. Terrasi, H. P. Tratuvetter, S. Zavatarelli, and L. Collaboration, "First measurement of the d(p, gamma)He-3 cross section down to the solar Gamow peak", Nuclear Physics A, vol. 706, issue 1-2, pp. 203-216, 2002. AbstractWebsite
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Casella, C., H. Costantini, A. Lemut, B. Limata, D. Bemmerer, R. Bonetti, C. Broggini, L. Campajola, P. Cocconi, P. Corvisiero, J. Cruz, A. D'Onofrio, A. Formicola, Z. Fulop, G. Gervino, L. Gialanella, A. Guglielmetti, C. Gustavino, G. Gyurky, A. Loiano, G. Imbriani, A. P. Jesus, M. Junker, P. Musico, A. Ordine, F. Parodi, M. Parolin, J. V. Pinto, P. Prati, J. P. Ribeiro, V. Roca, D. Rogalla, C. Rolfs, M. Romano, C. Rossi-Alvarez, A. Rottura, F. Schuemann, E. Somorjai, F. Strieder, F. Terrasi, H. P. Trautvetter, A. Vomiero, and S. Zavatarelli, "A new setup for the underground study of capture reactions", Nuclear Instruments & Methods in Physics Research Section a-Accelerators Spectrometers Detectors and Associated Equipment, vol. 489, issue 1-3, pp. 160-169, 2002. AbstractWebsite
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Mateus, R., A. P. Jesus, B. Braizinha, J. Cruz, J. V. Pinto, and J. P. Ribeiro, "Proton-induced gamma-ray analysis of lithium in thick samples", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 190, pp. 117-121, 2002. AbstractWebsite
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2003
Alves, E., R. C. da Silva, J. V. Pinto, T. Monteiro, B. Savoini, D. Caceres, R. Gonzalez, and Y. Chen, "Radiation-damage recovery in undoped and oxidized Li doped MgO crystals implanted with lithium ions", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 206, pp. 148-152, 2003. AbstractWebsite
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2004
Savoini, B., D. Caceres, R. Gonzalez, Y. Chen, J. V. Pinto, R. C. da Silva, and E. Alves, "Copper nanocolloids in MgO crystals implanted with Cu ions", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 218, pp. 148-152, 2004. AbstractWebsite
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Tardio, M., R. Ramirez, R. Gonzalez, J. V. Pinto, R. C. da Silva, E. Alves, and Y. Chen, "Electrical conductivity of as-grown and oxidized MgO : Li crystals implanted with Li ions", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 218, pp. 164-169, 2004. AbstractWebsite
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Cruz, M. M., R. C. da Silva, J. V. Pinto, R. G. Gonzalez, E. Alves, and M. Godinho, "Magnetic behavior of Co and Ni implanted MgO", Journal of Magnetism and Magnetic Materials, vol. 272, pp. 840-842, 2004. AbstractWebsite
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Pinto, J. V., R. C. da Silva, E. Alves, M. J. Soares, T. Monteiro, and R. Gonzalez, "Stability and optical activity of Er implanted MgO", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 218, pp. 128-132, 2004. AbstractWebsite
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2005
Pinto, J. V., M. M. Cruz, R. C. da Silva, E. Alves, R. Gonzalez, and M. Godinho, "Magnetic nanoscale aggregates of cobalt and nickel in MgO single crystals", European Physical Journal B, vol. 45, issue 3, pp. 331-338, 2005. AbstractWebsite
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Pinto, J. V., M. M. Cruz, R. C. da Silva, E. Alves, and M. Godinho, "Magnetic properties of TiO2 rutile implanted with Ni and Co", Journal of Magnetism and Magnetic Materials, vol. 294, issue 2, pp. E73-E76, 2005. AbstractWebsite
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2006
Alves, E., J. V. Pinto, R. C. da Silva, M. Peres, M. J. Soares, and T. Monteiro, "Optical behaviour of Er doped rutile by ion implantation", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 250, pp. 363-367, 2006. AbstractWebsite
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2007
Pinto, J. V., M. M. Cruz, R. C. da Silva, N. Franco, A. Casaca, E. Alves, and M. Godinho, "Anisotropic ferromagnetism induced in rutile single crystals by Co implantation", European Physical Journal B, vol. 55, issue 3, pp. 253-260, 2007. AbstractWebsite
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Savoini, B., R. Gonzalez, J. V. Pinto, R. C. da Silva, and E. Alves, "Copper and cobalt nanocolloids in implanted MgO crystals", Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms, vol. 257, pp. 563-567, 2007. AbstractWebsite
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Borges, R. P., J. V. Pinto, R. C. da Silva, A. P. Goncalves, M. M. Cruz, and M. Godinho, "Ferromagnetism in ZnO doped with Co by ion implantation", Journal of Magnetism and Magnetic Materials, vol. 316, issue 2, pp. E191-E194, 2007. AbstractWebsite
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Cruz, M. M., J. V. Pinto, R. C. da Silva, E. Alves, R. Gonzalez, and M. Godinho, "Relaxation behaviour of Co and Ni implanted into MgO", Journal of Magnetism and Magnetic Materials, vol. 316, issue 2, pp. E776-E778, 2007. AbstractWebsite
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2011
Nayak, P. K., J. V. Pinto, G. Goncalves, R. Martins, and E. Fortunato, "Environmental, Optical, and Electrical Stability Study of Solution-Processed Zinc-Tin-Oxide Thin-Film Transistors", Journal of Display Technology, vol. 7, issue 12, pp. 640-643, 2011. Abstract
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Branquinho, R., B. Veigas, J. V. Pinto, R. Martins, E. Fortunato, and P. V. Baptista, "Real-time monitoring of PCR amplification of proto-oncogene c-MYC using a Ta2O5 electrolyte-insulator-semiconductor sensor", Biosensors & Bioelectronics, vol. 28, issue 1, pp. 44-49, 2011. Abstract
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2012
Figueiredo, V., E. Elangovan, R. Barros, J. V. Pinto, T. Busani, R. Martins, and E. Fortunato, "{p-Type Cu x O Films Deposited at Room Temperature for Thin-Film Transistors}", Journal of Display Technology, vol. 8, no. 1, pp. 41–47, 2012. Abstract

Thin-films of copper oxide @Cu OA were sputtered from a metallic copper (Cu) target and studied as a function of oxygen partial pressure @O??A. A metallic Cu film with cubic structure obtained from 0{%} O?? has been transformed to cubic CuPO phase for the increase in O?? to 9{%} but then changed to monoclinic CuO phase (for O?? PS7). The variation in crystallite size (calculated from x-ray diffraction data) was further substantiated by the variation in grain size (surface microstruc- tures). The Cu O films produced with O?? ranging between 9{%} and 75{%} showed p-type behavior, which were successfully applied to produce thin-film transistors.

Casimiro, M. H., A. G. Silva, J. V. Pinto, A. M. Ramos, J. Vital, and L. M. Ferreira, "Catalytic poly(vinyl alcohol) functionalized membranes obtained by gamma irradiation", Radiation Physics and Chemistry, vol. 81, issue 9, pp. 1314-1318, 2012. Abstract
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Duarte, P., D. P. Ferreira, T. F. Lopes, J. V. Pinto, I. M. Fonseca, I. Ferreira Machado, and L. F. Vieira Ferreira, "DSM as a probe for the characterization of modified mesoporous silicas", Microporous and Mesoporous Materials, vol. 161, pp. 139-147, 2012. Abstract
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2013
Cruz, M. M., R. C. Silva, J. V. Pinto, R. P. Borges, N. Franco, and A. Casaca, "{Formation of oriented nickel aggregates in rutile single crystals by Ni implantation}", Journal of Magnetism and Magnetic Materials, vol. 340: Elsevier, pp. 102–108, 2013. AbstractWebsite

The magnetic and electrical properties of Ni implanted single crystalline TiO2 rutile were studied for nominal implanted fluences between 0.5?1017 cm−2 and 2.0?1017 cm−2 with 150 keV energy, corre- sponding to maximum atomic concentrations between 9 at{%} and 27 at{%} at 65 nm depth, in order to study the formation of metallic oriented aggregates. The results indicate that the as implanted crystals exhibit superparamagnetic behavior for the two higher fluences, which is attributed to the formation of nanosized nickel clusters with an average size related with the implanted concentration, while only paramagnetic behavior is observed for the lowest fluence. Annealing at 1073 K induces the aggregation of the implanted nickel and enhances the magnetization in all samples. The associated anisotropic behavior indicates preferred orientations of the nickel aggregates in the rutile lattice consistent with Rutherford backscattering spectrometry—channelling results. Electrical conductivity displays anisotropic behavior but no magnetoresistive effects were detected.

Figueiredo, V., J. V. Pinto, J. Deuermeier, R. Barros, E. Alves, R. Martins, and E. Fortunato, "{p-Type Cu O Thin-Film Transistors Produced by Thermal Oxidation}", Journal of Display Technology, vol. 9, no. 9, pp. 735–740, 2013. Abstract

Thin-films of copper oxide Cu O were produced by thermal oxidation of metallic copper (Cu) at different tempera- tures (150–450 C). The films produced at temperatures of 200, 250 and 300 C showed high Hall motilities of 2.2, 1.9 and 1.6 cm V s , respectively. Single Cu O phases were obtained at 200 Cand its conversion toCuO starts at 250 C. For lower thick- nesses 40 nm, the films oxidized at 250 Cshowed a complete conversion to CuO phase. Successful thin-film transistors (TFTs) were produce by thermal oxidation of a 20 nm Cu film, obtaining p-type Cu O (at 200 C) and CuO (at 250 C) with On/Off ratios of 6 10 and 1 10 , respectively.