Alfredo Rodrigues Vaz

Pós-doutorado

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Áreas de atuação

Participação em eventos

Comissão julgadora das bancas

Foi orientado por

Produções bibliográficas

• KUMAR, RAJESH ; DIAS, WAGNER ; RUBIRA, RAFAEL J. G. ; ALAFERDOV, ANDREI V. ; VAZ, ALFREDO R. ; SINGH, RAJESH K. ; TEIXEIRA, SILVIO R. ; CONSTANTINO, CARLOS J. L. ; MOSHKALEV, STANISLAV A. . Simple and Fast Approach for Synthesis of Reduced Graphene Oxide-MoS- Hybrids for Room Temperature Gas Detection. IEEE TRANSACTIONS ON ELECTRON DEVICES , v. 65, p. 1-7, 2018.

• KUMAR, RAJESH ; SAVU, RALUCA ; SINGH, RAJESH K. ; JOANNI, EDNAN ; SINGH, DINESH P. ; TIWARI, VIDHU S. ; VAZ, ALFREDO R. ; DA SILVA, EVERSON T.S.G. ; MALUTA, JAQUELINE R. ; KUBOTA, LAURO T. ; MOSHKALEV, STANISLAV A. . Controlled density of defects assisted perforated structure in reduced graphene oxide nanosheets-palladium hybrids for enhanced ethanol electro-oxidation. CARBON , v. 117, p. 137-146, 2017.

• KUMAR, RAJESH ; SINGH, RAJESH K. ; SINGH, DINESH P. ; VAZ, ALFREDO R. ; YADAV, RAJA R. ; ROUT, CHANDRA S. ; MOSHKALEV, STANISLAV A. . Synthesis of self-assembled and hierarchical palladium-CNTs-reduced graphene oxide composites for enhanced field emission properties. MATERIALS & DESIGN , v. 122, p. 110-117, 2017.

• KUMAR, RAJESH ; SINGH, RAJESH K. ; VAZ, ALFREDO R. ; SAVU, RALUCA ; MOSHKALEV, STANISLAV A. . Self-Assembled and One-Step Synthesis of Interconnected 3D Network of Fe 3 O 4 /Reduced Graphene Oxide Nanosheets Hybrid for High-Performance Supercapacitor Electrode. ACS Applied Materials & Interfaces , v. 9, p. 8880-8890, 2017.

• KUMAR, RAJESH ; SINGH, RAJESH K. ; TIWARI, VIDHU S. ; YADAV, AMARJEET ; SAVU, RALUCA ; VAZ, ALFREDO R. ; MOSHKALEV, STANISLAV A. . Enhanced magnetic performance of iron oxide nanoparticles anchored pristine/ N-doped multi-walled carbon nanotubes by microwave-assisted approach. JOURNAL OF ALLOYS AND COMPOUNDS , v. 695, p. 1793-1801, 2017.

• KUMAR, RAJESH ; SINGH, RAJESH K. ; SINGH, ASHWANI K. ; VAZ, ALFREDO R. ; ROUT, CHANDRA S. ; MOSHKALEV, STANISLAV A. . Facile and single step synthesis of three dimensional reduced graphene oxide-NiCoO 2 composite using microwave for enhanced electron field emission properties. APPLIED SURFACE SCIENCE , v. 416, p. 259-265, 2017.

• WARNEKE, JONAS ; ROHDENBURG, MARKUS ; ZHANG, YUCHENG ; ORZAGH, JURAJ ; VAZ, ALFREDO ; UTKE, IVO ; DE HOSSON, JEFF TH. M. ; VAN DORP, WILLEM F. ; SWIDEREK, PETRA . Role of NH in the Electron-Induced Reactions of Adsorbed and Solid Cisplatin. Journal of Physical Chemistry. C , v. 120, p. 4112-4120, 2016.

• KUMAR, RAJESH ; DUBEY, PAWAN KUMAR ; SINGH, RAJESH KUMAR ; VAZ, ALFREDO R. ; MOSHKALEV, STANISLAV A. . Catalyst-free synthesis of a three-dimensional nanoworm-like gallium oxide-graphene nanosheet hybrid structure with enhanced optical properties. RSC Advances: an international journal to further the chemical sciences , v. 6, p. 17669-17677, 2016.

• KUMAR, RAJESH ; SAVU, RALUCA ; JOANNI, EDNAN ; VAZ, ALFREDO R. ; CANESQUI, MARA A. ; SINGH, RAJESH K. ; TIMM, RONALDO A. ; KUBOTA, LAURO T. ; MOSHKALEV, STANISLAV A. . Fabrication of interdigitated micro-supercapacitor devices by direct laser writing onto ultra-thin, flexible and free-standing graphite oxide films. RSC Advances: an international journal to further the chemical sciences , v. 6, p. 84769-84776, 2016.

• KUMAR, RAJESH ; SINGH, RAJESH KUMAR ; VAZ, ALFREDO R. ; MOSHKALEV, STANISLAV A. . Microwave-assisted synthesis and deposition of a thin ZnO layer on microwave-exfoliated graphene: optical and electrochemical evaluations. RSC Advances: an international journal to further the chemical sciences , v. 5, p. 67988-67995, 2015.

• SZKUDLAREK, ALEKSANDRA ; RODRIGUES VAZ, ALFREDO ; ZHANG, YUCHENG ; RUDKOWSKI, ANDRZEJ ; KAPUSTA, CZES'AW ; ERNI, ROLF ; MOSHKALEV, STANISLAV ; UTKE, IVO . Formation of pure Cu nanocrystals upon post-growth annealing of Cu-C material obtained from focused electron beam induced deposition: comparison of different methods. BEILSTEIN J NANOTECH , v. 6, p. 1508-1517, 2015.

• ERMAKOV, VICTOR A. ; ALAFERDOV, ANDREI V. ; VAZ, ALFREDO R. ; PERIM, ERIC ; AUTRETO, PEDRO A. S. ; PAUPITZ, RICARDO ; GALVAO, DOUGLAS S. ; MOSHKALEV, STANISLAV A. . Burning Graphene Layer-by-Layer. Scientific Reports , v. 5, p. 11546, 2015.

• CARVALHO, FLAVIO HENRIQUE OLIVEIRA ; VAZ, ALFREDO RODRIGUES ; MOSHKALEV, STANISLAV ; GELAMO, ROGÉRIO VALENTIM . Syntesis of Carbon Nanostructures Near Room Temperature Using Microwave PECVD. Materials Research , v. 18, p. 860-866, 2015.

• ERMAKOV, V. A. ; Alaferdov, A. V. ; Vaz, A.R. ; MOSHKALEV, S. A. . Drop of Thermal Contacts Resistance between Multi-Layer Graphene and Metals caused by Laser. JICS. Journal of Integrated Circuits and Systems (Ed. Português) , v. 9, p. 87-90, 2014.

• Moshkalev, S.A. ; ERMAKOV, V.A. ; Vaz, A.R. ; ALAFERDOV, A.V. ; SAVU, R. ; SILVEIRA, J.V. ; SOUZA FILHO, A.G. . Formation of reliable electrical and thermal contacts between graphene and metal electrodes by laser annealing. Microelectronic Engineering , v. 121, p. 55-58, 2014.

• ERMAKOV, VICTOR A ; ALAFERDOV, ANDREI V ; VAZ, ALFREDO R ; BARANOV, ALEXANDER V ; MOSHKALEV, STANISLAV A . Nonlocal laser annealing to improve thermal contacts between multi-layer graphene and metals. Nanotechnology (Bristol. Print) , v. 24, p. 155301, 2013.

• Alaferdov, A. V. ; SAVU, R. ; CANESQUI, M. A. ; VAZ, A. R. ; ERMAKOV, V. A. ; MOSHKALEV, S. A. . Study of the thermal contact between carbon nanotubes and a metal electrode. Journal of Surface Investigation: X-Ray, Synchrotron, and Neutron Techniques , v. 7, p. 607-611, 2013.

• GELAMO, ROGÉRIO VALENTIM ; SENE, EVA CLÁUDIA VENÂNCIO DE ; PAIVA, LUCIANA ; OLIVEIRA, CRISTINA DA CUNHA H. B. DE ; MALTOS, ANDRÉ LUIZ ; SCHREINER, WIDO H. ; MORAES, MÁRIO BICA DE ; VAZ, ALFREDO R. ; MOSHKALEV, STANISLAV A. ; CUNHA, DANIEL FERREIRA DA . Effects of reprocessing on chemical and morphological properties of guide wires used in angioplasty. Revista Brasileira de Cirurgia Cardiovascular (Impresso) , v. 28, p. 331-337, 2013.

• SAVU, R. ; SILVEIRA, J. V. ; FLACKER, A. ; VAZ, A. R. ; JOANNI, E. ; PINTO, A. C. ; GOBBI, A. L. ; SANTOS, T. E. A. ; ROTONDARO, A. L. P. ; MOSHKALEV, S. A. . Micro-reactors for characterization of nanostructure-based sensors. Review of Scientific Instruments , v. 83, p. 055104, 2012.

• CAMPOS, C. D. M ; FLACKER, A. ; VAZ, A. R. ; MOSHKALEV, S. A. ; NOBREGA, E. G. O. . Electroplated Nickel Permanent Magnetic Films over Polymeric Membranes. Journal of the Electrochemical Society , v. 158, p. D330, 2011.

• J. León ; FLACKER, A. ; VAZ, A. R. ; VERISSIMO, C. ; MORAES, M. B. ; Moshkalev, S.A. . Electrical Characterization of Multi-Walled Carbon Nanotubes. Journal of Nanoscience and Nanotechnology , v. 10, p. 1-6, 2010.

• Nunes-Kapp, J.S. ; Zadorosny, R. ; Oliveira, A.A.M. ; Vaz, A.R. ; Moshkalev, S.A. ; Lepienski, M. ; Ortiz, W.A. . Vortices trapped in the damaged surroundings of antidots in Nb films - depinning transition. Physica. C, Superconductivity , p. 00000000000-000000000010, 2010.

• Gelamo, R.V. ; Rouxinol, F.P. ; VERISSIMO, C. ; Vaz, A.R. ; Bica de Moraes, M.A. ; Moshkalev, S.A. . Low-temperature gas and pressure sensor based on multi-wall carbon nanotubes decorated with Ti nanoparticles. Chemical Physics Letters (Print) , v. 482, p. 302-306, 2009.

• Barea, L. A. M. ; Vallini, F. ; VAZ, A. R. ; MIALICHI, J. R. ; Frateschi, N. C. . Low-roughness active microdisk resonators fabricated by focused ion beam. Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures Processing, Measurement and Phenomena , v. 27, p. 2979-2981, 2009.

• Fischer, C. ; Menezes, J. W. ; MOSHKALEV, S. A. ; Veri?ssimo, C. ; VAZ, A. R. ; SWART, J. W. . Fabrication of high-aspect ratio silicon nanopillars and nanocones using deep reactive ion etching. Journal of Vacuum Science & Technology. B, Microelectronics and Nanometer Structures Processing, Measurement and Phenomena , v. 27, p. 2732, 2009.

• VAZ, A. R. ; SILVA, M. M. ; Leon, J. ; MOSHKALEV, S. A. ; SWART, J. W. . Platinum thin films deposited on silicon oxide by focused ion beam: characterization and application. Journal of Materials Science , v. 43, p. 3429-3434, 2008.

• Kisner, A. ; Aguiar, M. R. ; VAZ, A. R. ; Rojas, A. ; Cavarsan, F. A. ; Diniz, J. A. ; Kubota, L. T. . Submicrometer-MOS capacitor with ultra high capacitance biased by Au nanoelectrodes. Applied Physics. A, Materials Science & Processing , p. 0000, 2008.

• Moshkalev, S.A. ; Leon, J. ; Veríssimo, Carla ; Vaz, A.R. ; FLACKER, A. ; de Moraes, M.B. ; Swart, J.W. . Controlled Deposition and Electrical Characterization of Multi-Wall Carbon Nanotubes. Journal of Nano Research (Online) , v. 3, p. 25-32, 2008.

• M. Cattani ; VAZ, A. R. ; Wiederkehr R.S. ; F.S. Teixeira ; M.C. Salvadori ; I.G. Brown . INFLUENCE OF ELECTRON SCATTERING FROM MORPHOLOGICAL GRANULARITY AND SURFACE ROUGHNESS ON THIN FILM ELECTRICAL RESISTIVITY. Surface Review and Letters , v. 14, p. 87, 2007.

• CORDEIRO, C. ; de Matos C.J.S. ; SANTOS, E. ; BOZOLAN, A. ; ONG, J.S.K. ; FACINCANI, T. ; CHESINI G. ; VAZ, A. R. ; BRITO CRUZ, C. H. . Towards practical liquid and gas sensing with photonic crystal fibres: side access to the fibre microstructure and single-mode liquid-core fibre. Measurement Science & Technology , v. 18, p. 3075-3081, 2007.

• SALVADORI, M ; MELO, L ; VAZ, A. R. ; WIEDERKEHR, R ; TEIXEIRA, F ; CATTANI, M . Platinum and gold thin films deposited by filtered vacuum arc: morphological and crystallographic grain sizes. Surface & Coatings Technology , v. 200, p. 2965-2969, 2006.

• SALVADORI, M. C. ; VAZ, A. R. ; Teixeira, F. S. ; Cattani, M. ; Brown, I. G. . Thermoelectric effect in very thin film Pt?Au thermocouples. Applied Physics Letters , v. 88, p. 133106-133109, 2006.

• Cattani, M. ; SALVADORI, M. C. ; VAZ, A. R. ; Teixeira, F. S. ; Brown, I. G. . Thermoelectric power in very thin film thermocouples: Quantum size effects. Journal of Applied Physics , v. 100, p. 114905-114909, 2006.

• Salvadori, M.C. ; Vaz, A.R. ; Farias, R.J.C. ; Cattani, M. . Measurement of Electrical Resistivity of Nanostructured Platinum Thin Films and Quantum Mechanical Estimates. Journal of Metastable and Nanocrystalline Materials , Suíça, v. 20-21, p. 775-780, 2004.

• L.L. Melo ; VAZ, A. R. ; M.C. Salvadori ; M. Cattani . grain size and surface roughness in platinum and gold thin films. Journal of metastable and nanocrystalline materials, Suíça, v. 20-21, p. 623-628, 2004.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani . young Modulus measurement of nanostructured mattalic thin films. journal of metastable and nanocrystalline materials, Suíça, v. 20-21, p. 758-762, 2004.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani ; L.L. Melo . Nanostructured Gold Thin Films: Young Modulus Measurement. Surface Review and Letters, USA, v. 10, p. 571-575, 2003.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani . Young modulus measurement of nanostructured palladium thin films.. Proceeding of Nanotechnology Conference and Trade Show (NanoTech 2003), San Francisco, California, USA, v. 3, p. 177-180, 2003.

• M.C. Salvadori ; I.G. Brown ; VAZ, A. R. ; L.L. Melo ; M. Cattani . Measurement of the Elastic Modulus of Nanostructured Gold and Platinum Thin Films. Physical Review B., USA, v. 67, p. 153404-153408, 2003.

• SALVADORI, M. C. ; L.L. Melo ; D.R. Martins ; VAZ, A. R. ; CATTANI, M . Critical Exponent Measurement of Poor Quality Diamond Films. Surface Review and Letters , v. 9, p. 1409-1412, 2002.

• V. Lemos ; VAZ, A. R. ; A.A. Quivy ; J.R. Leite . Raman Scattering in Self- Assembled InGaAs Islands. Proceedings of the Sixteenth Internatinal conference on Raman Spectroscopy, University of Pretoria, 1998.

• Freire, P. T. C. ; Araújo Silva, M. A. ; Reynoso, V. C. S. ; VAZ, A. R. ; Lemos, V. . Pressure Raman scattering of CdTe quantum dots. Physical Review. B, Condensed Matter. (Cessou 1997. Cont. 1098-0121 Physical Review. B, Condensed Matter and Materials Physics) , v. 55, p. 6743-6746, 1997.

• Vaz, A.R. ; MOSHKALEV, S. A. . Metal Films and Nanowires Deposited by FIB and FEB for Nanofabrication and Nanocontacting. In: Ivo Utke, Stanislav Moshkalev, Phillip Russel. (Org.). Nanofabrication Using Focused Ion and Electron Beams. Principles and Applications. 1sted.: OXFORD, 2012, v. , p. 538-552.

• Vaz, A.R. ; VERISSIMO, C. ; Gelamo, R.V. ; Rouxinol, F.P. ; MOSHKALEV, S. A. . Characterization and modification of nanostructured carbom materials using FIB and FEB. In: Ivo Utke, Stanislav Moshkalev, Phillip Russel. (Org.). Nanofabrication Using Focused Ion and Electron Beams. Principles and Applications. 1sted.: OXFORD, 2012, v. , p. 707-719.

• J. S. Nunes-Kappa ; R. Zadorosny ; A. A. M. Oliveira ; VAZ, A. R. ; Moshkalev, S.A. ; M. Lepienski ; W. A. Ortiz . Vortices trapped in the damaged surroundings of antidots in Nb films - depinning transition. In: Vortex VI, 2009, Rhodes. Proceedings da conferência Vortex VI, 2009.

• L.B. Zoccal ; Vaz, A. F. ; S.D.Yamamoto ; MOSHKALEV, S. A. ; Diniz, J. A. ; SWART, J. W. . Adjustment of Microwave Integrated Circuit (MIC) with Focused Ion Beam. In: SBMicro, 2008, Gramado. RS. Proceedings SBMicro 2008. Pennengton, NJ: ECSociety, 2008. v. 14. p. 131-136.

• J. León ; MOSHKALEV, S. A. ; FLACKER, A. ; Vaz, A. F. ; VERISSIMO, C. ; MORAES, M. B. . Electrical Characterization of Multi-Wall Carbon Nanotubes in 2 and 4 terminals Configurations. In: SBMicro 2008, 2008, Gramado, RS. Proceedings SBMicro 2008. Penninhgton, NJ: ECSociety, 2008. v. 14. p. 423-432.

• J. León ; Vaz, A. F. ; FLACKER, A. ; MOSHKALEV, S. A. ; MORAES, M. B. ; SWART, J. W. . Contact improvement for carbon nanotubes deposited by dielectrophoresis. In: SBMicro 2007, 2007, Rio de Janeiro, RJ. Proceeding SBMicro 2007 Electrochemical Society. Pennington, NJ: Transactions ECS, 2007. v. 9. p. 213-218.

• SILVA, M. M. ; Vaz, A. F. ; MOSHKALEV, S. A. ; SWART, J. W. . Electrical characterization of platinum thin films deposited by focused ion beam. In: SBMicro 2007, 2007, Rio de Janeiro. Proceedings of SBMicro 2007. Pennington, NJ: Transactions ECS, 2007. v. 9. p. 235-242.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani . Young modulus measurement of nanostructured palladium thin films. In: 2003 Nanotechnology Conference and Trade Show, 2003, San Francisco, California, USA. Proceeding of the 2003 Nanotechnology Conference and Trade Show (NanoTech 2003), 2003. p. 177-179.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani ; R.J.C. Farias . Electrical resistivity of nanostructured platinum thin films.. In: 10th International Symposium on Metastable, Mechanically Alloyed and Nanocrysatlline Materials (ISMANAM 2003), 2003, Foz do Iguaçu. Aceito para publicacão, 2003.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani . Young modulus measurement of nanostructured metallic thin films.. In: 10th International Symposium on Metastable, Mechanically Alloyed and Nanocrysatlline Materials (ISMANAM 2003), 2003, Foz do Iguaçu. Aceito para publicacão, 2003.

• VAZ, A. R. ; L.L. Melo ; M.C. Salvadori ; M. Cattani . Grain Size and Surface Roughness in Metallic Thin Films. In: 10th International Symposium on Metastable, Mechanically Alloyed and Nanocrysatlline Materials (ISMANAM 2003), 2003, Foz do Iguaçu. Aceito para publicação, 2003.

• Gelamo, R.V. ; Rouxinol, F.P. ; VERISSIMO, C. ; Abbaspour A. ; VAZ, A. R. ; MORAES, M. B. ; Moshkalev, S.A. . Carbon Nanotube Based Pressure and Gas Sensors. In: NATO Advanced Research Workshop - Advanced Materials and Technologies for Micro/Nano-Devices, Sensors and Actuators, 2009, St. Petersburg. Programme and Abstracts of Advanced Materials and Technologies for Micro/Nano-Devices, Sensors and Actuators, 2009. p. 54-54.

• Gelamo, R.V. ; Rouxinol, F.P. ; Abbaspour A. ; VERISSIMO, C. ; VAZ, A. R. ; MORAES, M. B. ; ALVES, O. L. ; Moshkalev, S.A. . Carbon nanotubes decorated with Ti and TiO2 nanoparticles for sensing applications. In: CARBON 09, The Annual WORLD CONFERENCE on CARBON, 2009, Biarritz. Program ans Short Abstracts CARBON 09, The Annual WORLD CONFERENCE on CARBON, 2009. p. 109-109.

• Gelamo, R.V. ; Rouxinol, F.P. ; Abbaspour A. ; VERISSIMO, C. ; VAZ, A. R. ; MORAES, M. B. ; ALVES, O. L. ; Moshkalev, S.A. . Decoration of carbon nanotubes by metal oxide and metal nanoparticles for gas sensing applications. In: European Materials Research Society - Spring Meeting, 2009, Strasbourg. Book of Abstracts E-MRS 2009 Spring Meeting, 2009, 2009.

• Gelamo, R.V. ; Rouxinol, F.P. ; Abbaspour A. ; VERISSIMO, C. ; VAZ, A. R. ; MORAES, M. B. ; SWART, J. W. ; MOSHKALEV, S. A. . Low-temperature oxygen sensorrs based on carbon nanotubes decorated by titanium and titanium nanoparticles. In: E- MRS 2009 - Spring Meeting, 2009, Strasbourg. Book of Abstracts E-MRS 2009 - Spring Meeting, 2009.

• VAZ, A. R. ; L. A. M. Barea ; MIALICHI, J. R. ; F. Vallini ; N.C. Frateschi . Low roughness microdisk resonators fabricated by Focused Ion Beam (FIB). In: 53rd Electron, Ion and Photon Beam Technology and Nanofabrication, 2009, Florida. Book of abstracts of EIPBN 2009, 2009.

• VAZ, A. R. ; Leon, J. ; VERISSIMO, C. ; SILVA, M. M. ; Gelamo, R.V. ; Moshkalev, S.A. ; SWART, J. W. . EFFECTS OF ION IRRADIATION ON ELECTRICAL PROPERTIES OF CARBON NANOTUBES. In: 53rd Electron, Ion and Photon Beam Technology and Nanofabrication, 2009, Marco Island. Book of abstracts of EIPBN 2009, 2009.

• VAZ, A. R. ; MOSHKALEV, S. A. ; VERISSIMO, C. ; SWART, J. W. . Dual Beam FIB/SEM - Universal Tool for Nanoscience. In: 5th Brazilian MRSMeeeting, 2006, Florianópolis. Caderno de Resumos do 5th BMRSM, 2006.

• VAZ, A. R. ; M.C. Salvadori ; F.S. Teixeira ; M. Cattani ; I.G. Brown . Efeitos Termoelétricos em termopares de filmes muito finos de Pt/Au. In: XXIX Encontro Nacional de Física da Matéria Condensada, 2006, São Lourenço. Caderno de resumos do XXIX ENFMC, 2006.

• Sotomayor N.M. ; VAZ, A. R. ; MOSHKALEV, S. A. ; GUSEV, G. M. . High Resolution Antidot Lattices in AlGaAs/GaAs Parabolic Quantum Well Heterostructures Obtained by FIB. In: 5th Brazilian MRSMeeting, 2006, Florianópolis. Caderno de resumos do 5th Brazilian MRSMeeting, 2006. p. 149.

• M.C. Salvadori ; VAZ, A. R. ; F.S. Teixeira ; M. Cattani . The Seebeck effect for nonometric Pt and Au thin films. In: Symposium on Design, Test, Integration and Packaging of MEMS/MOEMS, 2005, 2005, Montraux. Proceeding ofSymposium on Design, Test, Integration and Packaging of MEMS/MOEMS, 2005, 2005. p. 90-92.

• VAZ, A. R. ; M.C. Salvadori ; F.S. Teixeira ; M. Cattani . Estudo do Efeito Seebeck para filmes finos nanométricos de Au e Pt. In: XXVIII Encontro Nacional de Física da Matéria Condensada, 2005, Santos. Caderno de Resumo do XXVIII ENFMC, 2005.

• R.J.C. Farias ; VAZ, A. R. ; M.C. Salvadori ; M. Cattani . Medidas da resistividade elétrica de filmes finos nanoestruturados de platina e ouro. In: XXVII ENFMC, 2004, Poços de caldas. Livro de resumos do XXVII ENFMC, 2004. p. 260-260.

• VAZ, A. R. ; M.C. Salvadori ; M. Cattani ; D.R. Martins . Microfabricação de cantiléver para medida de módulo elástico de filmes finos. In: XXVII ENFMC, 2004, Poços de Caldas. Livro de resumos do XXVII ENFMC, 2004.

• VAZ, A. R. ; D.R. Martins ; Wiederkehr R.S. ; M.C. Salvadori . Deposição de ZrxC utilizando dois canhões de plasma em sincronia. In: XXVII ENFMC, 2004, Poços de Caldas. Livro de resumos do XXVII ENFMC, 2004. p. 458.

• M.C. Salvadori ; VAZ, A. R. ; D.R. Martins ; M. Cattani . Determinação do Módulo Elástico de Filmes de Pt. In: XXV - Encontro Nacional de física da Matéria Condensada, 2002, Caxambu. Física da matéria condensada - Resumos, 2002. p. 535.

• D.R. Martins ; VAZ, A. R. ; M.C. Salvadori . Controle de Processo de um sistema de deposição por Arco Catódico.. In: XXIV - Encontro Nacional de física da Matéria Condensada, 2001, São Lourenço. Física da Matéria condensada - Resumos, 2001. p. 397.

• VAZ, A. R. ; D.R. Martins ; M.C. Salvadori . Deposição e caracterização de filmes finos de óxido de Alumínio crescido pela técnica de MePIIID(Metal Plasma Immertion Ion Implantation and deposition. In: XXIV - Encontro Nacional de Física da matéria condensada, 2001, São Lourenço. Física da matéria condensada. p. 397.

• VAZ, A. R. ; D.R. Martins ; M.C. Salvadori . Purity control in cathodic arc film deposition. In: 33rd IUVSTA Workshop and IV Brazilian Meeting on Diamond, Diamond-Like, Nanotubes, Nitrides & Silicon carbide., 2001, Campos do Jordão. Abstracts, 2001. p. 28.

• VAZ, A. R. ; V. Lemos . Fônons de Borda de Zona de Brillouin induzidos em espectroscopia Raman por defeito local. In: XXI - Encontro nacional de Física da Matéria Condensada, 1998, Caxambu. Física da Matéria Condensada - Resumos, 1998.

• VAZ, A. R. ; V. Lemos ; A.A. Quivy ; J.R. Leite . Raman Scattering in Self-Assembled InGaAs. In: Sixteenth International Conference on Raman Spectroscopy, 1998, Cidade do Cabo. proceedings of the Sixteenth International Conference on Raman Spectroscopy. Pretoria: A.M. Heyns - University of Pretoria, 1998.

• VAZ, A. R. ; V. Lemos . Caracterização de filmes de Diamante por espectroscopia Raman. In: XIX Encontro Nacional de Física da Matéria Condensada, 1996, Águas de Lindóia. Física da matéria Condensada - Resumos, 1996. p. 199-199.

• VAZ, A. R. ; V. Lemos . Espectroscopia raman em filmes de diamante. In: 2o Encontro da sociedade Brasileira de Crescimento de Cristais, 1995, São José dos Campos. Caderno de resumos, 1995.

• Fischer c. ; VERISSIMO, C. ; Vaz, A. F. ; Moshkalev, S.A. ; SWART, J. W. . High-Aspect Ratio Silicon Nanopillars Using Deep Reactive Ion Etching. 2009. (Apresentação de Trabalho/Congresso).

• L. A. M. Barea ; F. Vallini ; Vaz, A. F. ; MIALICHI, J. R. ; N.C. Frateschi . Low-Roughness Active Microdisk Resonators Fabricated by Focused Ion Beam (FIB). 2009. (Apresentação de Trabalho/Congresso).

• Vaz, A. F. ; J. León ; SILVA, M. M. ; Gelamo, R.V. ; Moshkalev, S.A. ; SWART, J. W. . EFFECTS OF ION IRRADIATION ON ELECTRICAL PROPERTIES OF CARBON NANOTUBES. 2009. (Apresentação de Trabalho/Congresso).

Projetos de pesquisa

• 2017 - Atual

  In-operando control of direct-write nanoscale decoration of graphene and reduced graphene oxide by novel mini-reactors, Descrição: This research collaboration project aims to enable fundamental investigations of novel nanostruc-tured materials synthesized from graphene (Gr) and reduced graphene oxide (rGO) in combination with cutting edge methods in nanoanalysis and nanofabrication: (i) in-operando optical Raman spec-troscopy, and (ii) area selective atomic layer deposition (ALD) with molecular control over size di-mensions using focused electron beam induced deposition (FEBID) as templating method. To achieve our goal, we will join our complementary core competencies: the Brazilian partner will synthesize graphene and reduced graphene oxide and will design and fabricate the mini-reactors. The Swiss team will integrate these materials and mini-reactors into existing dedicated setups in the group for Raman spectroscopy, scanning electron microscopy and atomic layer deposition. The result will be the transformation of ?standard? equipment into high-end in-operando and nanoscale direct-write platforms for nanostructured novel material fabrication and detailed synthesis monitoring. This un-precedented control on nanomaterials synthesis will spur continuing long-term collaboration and will be important for the respective research activities of the Brazilian and Swiss partners in investigating novel materials for gas sensors, strain sensors as well as magnetic sensors and energy storage.. , Situação: Em andamento; Natureza: Pesquisa. , Alunos envolvidos: Doutorado: (2) . , Integrantes: Alfredo Rodrigues Vaz - Integrante / Stanislav A. Moshkalev - Integrante / UTKE, IVO - Coordenador / SAVU, RALUCA - Integrante.

• 2016 - Atual

  Reparo do Sistema Dual Beam FIB/SEM (Focused Ion Beam/Scanning Electron Microscopy) modelo NOVA Nanolab 200., Descrição: O Equipamento Dual Beam FIB/SEM foi adquirido com auxílio FAPESP através do Programa Equipamentos Multiusuários 2004 e esta em operação no CCSNano desde julho de 2006 atendendo colaborativamente diversos grupos de pesquisa. O sistema é composto por três partes principais que são: Microscópio Eletrônico, Feixe de Íons Focalizados e Sistema de injeção de gases organometálicos para deposição de platina e óxido de silício. Esses três itens possuem elementos que se esgotam com o uso frequente e necessitam de troca periódica e são respectivamente: (1) Fonte de Elétrons (Tungstênio), (2) Fonte de Íons (Ga+ Ions - Liquid Metal Ion Source - LMIS) e (3) Reservatório de Platina (Cyclopentadienyl Trimethyl Platinum - (C5H5)Pt(CH3)3 ), além das partes mecânicas, que não apresentam um tempo de uso pré-estipulado mas que se desgastam e precisam ser substituidas, principalmente aquelas usadas no sistema de movimentação do suporte para amostras. Ao longo desses 10 anos houve um crescente aumento de usuários e consequentemente o aumento de trabalhos publicados que usaram algumas das facilidades do sistema Dual Beam como: Imagens de alta resolução,prototipagem de dispositivos, cortes, soldas, deposição de metal e óxido, microanálise da composição de materiais entre outras. Por outro lado o gasto das fonte e partes mecânicas se intensificou. Dessa maneira o objetivo desse projeto é substituir os itens esgotados e danificados que são: Fonte de elétrons, Reservatório de Platina e a engrenagem que movimenta a inclinação das amostras, além do serviço técnico especializado para a substituição e calibração dos itens. Com o esgotamento da fonte de elétrons, várias combinações de tensões e correntes passaram a não funcionar mais adequadamente dificultando a obtenção de imagens de alta resolução (5-10 nm), assim como resultado da troca da fonte de elétrons, esperamos ter as imagens excelentes que caracteriza o equipamento, além disso, com a troca da fonte de platina, poderemos ter de volta mais uma das facilidades do equipamento que é o processos de Cross Section para a caracterização das amostras. Com relação ao desgaste das partes mecânicas, a engrenagem que controla a inclinação da amostra apresenta travamento durante a execução do movimento impedindo um movimento suave e alcance de alguns ângulos que são essenciais para a calibração e execução de alguns processos de corte das amostras, dessa forma a sua troca permitirá um retorno da movimentação normal do suporte para amostra.. , Situação: Em andamento; Natureza: Pesquisa. , Integrantes: Alfredo Rodrigues Vaz - Coordenador / Stanislav A. Moshkalev - Integrante / SAVU, R. - Integrante.

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