Laboratorio de superficies y nanomateriales (LSN)
Descripción
El laboratorio se dedica a la ciencia de superficies, nanomateriales y películas delgadas:
• Crecimiento de películas metálicas.
• Transporte electrónico en películas metálicas delgadas.
• Formación de nanopartículas y películas de óxidos metálicos.
• Caracterización química de superficies sólidas.
• Moléculas auto-ensambladas sobre superficies metálicas.
• Adsorción estimulada eléctricamente (electroadsorción)
Equipamiento e instrumentos:
• Espectrómetro de fotoelectrones (XPS o ESCA): cuenta con fuente de rayos x no monocromatizada, permite erosión con iones, mediciones resueltas en el ángulo (ARXPS) y espectroscopia de iones de baja energía (LEIS).
• Microscopio de efecto túnel (STM) y de fuerza atómica (AFM).
• Imán superconductor de 9T.
• Máquina licuefactora de helio.
• Evaporadores en vacío, hornos, etc.
Miembros permanentes:
• Raúl C. Muñoz
Teléfonos: +562 29784379 - +562 29784521
Correo electrónico: ramunoz@ing.uchile.cl
• Víctor M. Fuenzalida
Teléfono: +562 29784392
Correo electrónico: vfuenzal@ing.uchile.cl
• Marcos Flores
Teléfono: +562 29784349
Correo electrónico: mflorescarra@ing.uchile.cl
• Boris Chornik
Teléfono: +562 29784333
Correo electrónico: bchornik@ing.uchile.cl
Académico responsable:
- Víctor M. Fuenzalida
Teléfono: +562 29784392
Correo electrónico: vfuenzal@ing.uchile.cl
Dirección: Blanco Encalada 2008, Santiago
Proyectos vigentes asociados:
• Proyecto Fondecyt N° 1110168: (2011-2015)
“Electrochemical and hydrothermal growth of zirconian nanostructures on solid surfaces”.
• PIA ACT 1117 (2013-2015)
“Programa interdisciplinario de Nanomateriales y Sistemas Moleculares”.
Publicaciones (2010-2014)
2014
G.Buono-Core, A.H. Klahn, E. Castillo, E. Muñoz, C. Manzur, G. Cabello, B. Chornik Synthesis and characterization of thin molybdenum oxide films prepared from molybdenum dioxo tropolonate precursors by photochemical metal-organic deposition (PMOD) and its evaluation as ammonia gas sensors. Journal of Non-Crystalline Solids 387, 21 (2014)
G. Cabello, A. Araneda, L. Lillo, C. Caro, C. Venegas, M. Tejos, B. Chornik Application of photochemical method in the synthesis of Ga2O3−X thin films co-doped with terbium and europium. Solid State Sciences 27, 24-29 (2014)
G Cabello, L Lillo, C Caro, GE Buono-Core, B Chornik, M Flores, C Carrasco, CA Rodriguez, Photochemical synthesis of AZrO(3-x) thin films (A=Ba, Ca and Sr) and their characterization, Ceramics International V40 (6) pp 7761-7768 DOI: 10.1016/j.ceramint. 2013.12.118
C. Carrasco, C.A. Rodriguez,M.G. Sandoval, G. Cabello, M. Flores and H. Fernandez, Characterization of ZnS thin films synthesized through a nontoxic precursors chemical bath. Materials Research bulletin 60, 313-321 (2014), doi:10.1016/j.materresbull.2014.08.047
J.C. Denardin, E. Burgos, R. Lavin, S. Vojkovic, J. Briones and M. Flores, Magnetic properties of Co/Cu/Py antidot films with different pore diameters. Transactions on Magnetics - conferences, accepted. arXiv:1406.7322
R. Espinoza-Gonzalez, E. Mosquera, I. Moglia, R. Villarroel and V. M. Fuenzalida, Hydrothermal growth and characterization of zirconia nanostructures on non-stoichiometric zirconium oxide, Ceramics International V 40 (10) pp 5577-15584 A, DOI: 10.1016/j.ceramint.2014.07.034 (2014) 7761-7768
SA Hevia, P Homm, F Guzman, HM Ruiz, G Munoz, LS Caballero, M Favre, M Flores, Pulsed laser deposition of carbon nanodot arrays using porous alumina membranes as a mask, Surface & Coatings Technology V 253 pp 161-165 DOI: 10.1016/j.surfroat.2014.05.031 (2014)
J. Jia, A. Giglia, M. Flores, O. Grizzi, L. Pascuali and V. Esaulov, 1,4-Benzenedimethanethiol interaction with Au(110), Ag(111), Cu(100) and Cu(111) surfaces: self-assembly and dissociation processes. The Journal of Physical Chemistry C, 2014, 118 (46), pp 26866–26876DOI: 10.1021/jp509184t
S. Oyarzún, R. Henríquez. M.A. Suárez, L.Moraga, G. Kremer and R.C. Muñoz, Transverse magnetoresistance induced by electron-surface scattering on thin gold films Experiment and theory. Applied surface science 289 (2014) 167.
2013
S Bahamondes, S Donoso, R Henriquez, M Flores, Morphological and electrical study of gold ultrathin films on mica, Thin Solid Films V548 pp 646-649 DOI: 10.1016/j.tsf.2013.08.104 (2013).
G. Cabello, L. Lillo, C. Caro, M.A. Soto-Arriaza, B. Chornik, G.E. Buono-Core."Evaluation on the optical properties of Ga2O3−x thin films co-doped with Tb3+ and transition metals (Mn2+, Cr3+) prepared by a photochemical route". Ceramics International 39, (3), 2443-2450 (2013).
T Doll, J J Velasco-Velez, D Rosenthal, J Avila, and V Fuenzalida, Direct Observation of the Electroadsorptive Effect on Ultrathin Films for Microsensor and Catalytic-Surface Control, ChemPhysChem V14(11) 2505-2510 (2013)
M Flores, E Cisternas, JD Correa, P Vargas, Moire patterns on STM images of graphite induced by rotations of surface and subsurface layers, Chemical Physics V 423 pp 49-54 DOI: 10.1016/j.chemphys.2013.06.022 (2013)
F Guzman, M Favre, HM Ruiz, S Hevia, LS Caballero, ES Wyndham, H Bhuyan, M Flores, S Maendl, Pulsed laser deposition of thin carbon films in a neutral gas background, J. Physics D Applied Physics V46 (21) # 215202 DOI: 10.1088/0022-3727/46/21/215202 (2013)
R Henriquez, M Flores, L Moraga, G Kremer, C Gonzalez-Fuentes, RC Munoz, Electron scattering at surfaces and grain boundaries in thin Au films, Appl. Surf. Sci V 273 pp 315-323 DOI: 10.1016/j.apsusc.2013.02.037 (2013)
R Henriquez, L Moraga, G Kremer, M Flores, A Espinosa, RC Munoz, Size effects in thin gold films: Discrimination between electron-surface and electron-grain boundary scattering by measuring the Hall effect at 4 K, Applied Physics Letters V 102 (5) #051608 DOI: 10.1063/1.4791600 (2013)
BE O'Rourke, M Flores, VA Esaulov, Y Yamazaki, Modification of self assembled monolayers by highly charged ions, Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms V299 pp 68-70 DOI: 10.1016/j.nimb.2012.12.122 (2013)
2012
E Araya, D Díaz-Droguett, M. Ribeiro, K. F. Albertin, J. Avila,V.M. Fuenzalida, R. Espinoza, D. Criado, Photoluminescence in silicon/silicon oxide films produced by the Pulsed Electron Beam Ablation technique, Journal of Non-Crystalline Solids, V 358, pp 880-884 (2012).
S. Bahamondes, S. Donoso, R. Henriquez, G. Kremer, R. Muñoz and M. Flores, Topographyc study of gold thin films on mica by physical vapor deposition. Avances en Ciencias e Ingeniería 3, 79 (2012).
G.E. Buono-Core, A.H. Klahn, G. Cabello, E. Muñoz, M.J. Bustamante, C. Castillo, B. Chornik Pt/WO3 thin films prepared by photochemical metal–organic deposition
(PMOD) and its evaluation as carbon monoxide sensor. Polyhedron 41, 134 (2012)
DE Diaz-Droguett, R El Far, VM. Fuenzalida, AL Cabrera, In situ-Raman studies on thermally induced structural changes of porous MoO3 prepared in vapor phase under He and H2, Mat. Chem. and Phys V 134 pp 631-638 (2012).
D.E. Diaz-Droguett, A. Zuniga, G. Solorzano, V.M. Fuenzalida, Electron beam-induced structural transformations of MoO3 and MoO3-x crystalline nanostructures, J. Nanopart. Res. 16, 679 (2012).
S. Guerrrero, I. Guzmán, G. Aguila, B. Chornik, P. Araya. Study of Na/Cu/TiO2 catalysts for the storage and reduction of NO". Applied Catalysis B: Environmental 123-124, 282 (2012)
F. Guzman, H.M. Ruiz, M. Favre, S. Hevia, H. Bhuyan, H. Chuaqui, E. Wyndham and M. Flores, Pulsed laser deposition of carbon films in low pressure neutral gas background, Journal of Physics: Conference Series 370, 012013 (2012).
H Palza, A Maturana, F Gracia; A Neira, VM Fuenzalida, J Avila, NM Sanchez-Ballester, MRJ Elsegood, SJ Teat, K Ariga, JP Hill, Nanostructured Manganese Oxide Particles from Coordination Complex Decomposition and Their Catalytic Properties for Ethanol Oxidation, J. Nanosci. & Nanoteh 12, 8087-8093 DOI: (2012).
ME Robles, CA Gonzalez-Fuentes, R Henriquez, G Kremer, L Moraga, S Oyarzun, MA Suarez, M Flores, RC Munoz, Resistivity of thin gold films on mica induced by electron-surface scattering: Application of quantitative scanning tunneling microscopy, Applied Surface Science V 258 (8) pp 3393-3404 DOI: 10.1016/j.apsusc.2011.11.035 (2012 )
2011
G.E. Buono-Core, A.H. Klahn, C. Castillo, M.J. Bustamante, E. Muñoz, G. Cabello, B. Chornik, Synthesis and evaluation of bis-beta-diketonate dioxotungsten (VI) complexes as precursors for the photodeposition of WO3 films Polyhedron 30, 201 (2011)
G. Cabello, L. Lillo, Y. Huentupil, F. Cabrera, G.E. Buono-Core, B. Chornik A simple photochemical method to synthesize Ga203-Dy3+-M3+ thin films and their evaluation as optical materials (where M=Cr or Co). Journal of physics and chemistry of solids 72, 1170 (2011)
D.E. Diaz-Droguett, R. Espinoza and V.M. Fuenzalida, Copper Nanoparticles Grown under Hydrogen: Study of the Surface Oxide, Appl. Surf. Sci., 257 (10), 4597-4602 (2011).
D.E. Diaz-Droguett and V.M. Fuenzalida, Gas Effects on the Chemical and Structural Characeristics of Porous MoO3 and MoO3-x grown by vapor condensation in helium and hydrogen, Materials Chemistry and Physics, 126, pp 82-90 (2011)
R.A. Espinoza-González, D.E. Diaz-Droguett, J.I. Avila, C.A. Gonzalez-Fuentes, and V.M. Fuenzalida, Hydrothermal Growth of Zirconia Nanobars on Zirconium Oxide, Materials Letters 65, 2121-2123 (2011).
M Flores, V Esaulov, y Yamazaki, Molecular ion emission from alkanethiol-SAMs by HCI bombardment. Physica Scripta V T144 # 014045 DOI: 10.1088/0031-8949/2011/T144/014045 (2011)
S. Fuentes, S, RA Zarate, R Espinoza, P Leyton, DE Diaz-Droguett, V.M. Fuenzalida, Characterization of Hydrated Titanium Oxide With Sheet-Like And Tube-Like Structures Prepared By a Hydrothermal Processing, Journal of the Chilean Chemical Society, V56, 729-733 (2011).
V.M. Fuenzalida, D.G. Galvez-Arancibia, I.J. Olavarria-Contreras, M.A. Salinger-Basterrica, and D.E. Diaz-Droguett, Tungsten Oxide Nanoparticles Grown by Condensation in Gas Using Domestic Appliances, Materials Letters 65, 306-3063 (2011)
RC Munoz, CA Gonzalez-Fuentes, R Henriquez, A Espinosa, G Kremer, L Moraga, A Ibanez-Landeta, S Bahamondes, S Donoso, M Flores, Resistivity of thin gold films on mica induced by electron-surface scattering from a self-affine fractal surface. Journal of Applied Physics V 110 (2) # 023710 DOI: 10.1063/1.3607974 (2011)
2010
G. Cabello, L. Lillo, C. Caro, B. Chornik, M.A. Soto, R. del Río, M. Tejos, Preparation and characterization of ZrO2:Sm amorphous thin films by solid state photochemical deposition method. Journal of Physics and Chemistry of Solids 71, 1367 (2010)
D.E. Diaz-Droguett and V.M. Fuenzalida, One-Step Synthesis of MoO3 and MoO3-x nanostructures by condensation in gas: effect of the carrier gas. J. Nanosci. Nanotechnol 10, 6694-6706 (2010).
R Henriquez, S Cancino, A Espinosa, M Flores, T Hoffmann, G Kremer, JG Lisoni, L Moraga, R Morales, S Oyarzun, MA Suarez, A Zuniga, RC Munoz, Electron grain boundary scattering and the resistivity of nanometric metallic structures, Physical Review B V82 (11) # 113409 DOI: 10.1103/PhysRevB.82.113409 (2010)
R Henriquez, S Oyarzun, M Flores, MA Suarez, L Moraga, G Kremer, CA Gonzalez-Fuentes, M Robles, RC Munoz, Size effects on the Hall constant in thin gold films. Journal of Applied Physics V108 (12) # 123704 DOI: 10.1063/1.3525704 (2010 )
R.C. Muñoz, M.A., Suárez, S. Oyarzún, R. Henríquez, A. Espinosa, G. Kremer, L. Moraga, S. Cancino and R. Morales, Longitudinal magnetoresistance of thin gold films deposited on mica, arising from electron-surface scattering. Phys. Rev. B82, 165408 (2010).
H. Palza, S. Gutiérrez, K. Delgado, O. Salazar, V. Fuenzalida, J. Avila, G. Figueroa, R. Quijada Toward Tailor-made Biocide Materials Based on Polypropylene/ Copper Nanoparticles. Macromolecular Rapid Communications, V31, 563-567 (2010).
G. Riveros, G. González, B. Chornik: Modification of Silicon Surface with Redox Molecules Derived from Ferrocene. J. Brazilian Chem. Soc. 21, 25, 2010.
G. Riveros, S. Meneses, S. Escobar, C. Garín, B. Chornik, Electron Transfer Rates of Alkyl-Ferrocene Molecules forming Incomplete Monolayer on Silicon Electrodes. J. Chil. Chem. Soc. 55, 61-66 (2010)