International Journal of Materials and Chemistry

International Journal of Materials and Chemistry is a peer-reviewed international journal that publishes high impact work on the chemistry of novel materials. It covers the chemistry of materials in all forms, particularly materials associated with new technologies. Coverage is broad and includes the design and synthesis of materials, their characterization, processing, modeling, properties and applications.

Carlos Vargas Hernandez

Editorial Board Member of International Journal of Materials and Chemistry

Professor, National University of Colombia, Colombia

Research Areas

Raman Spectroscopy

Education

2008MasterIngeneering-Industrial Automation, National University of Colombia, Manizales City
2007MasterScience In Instrumentation Physics, Technological University of Pereira, Colombia
2002Ph.DResearch and Advanced Studies Center of the National Polytechnic Institute of Mexico
1997MasterScience In Physics, National University of Colombia, Bogota City
1990BachelorScience Physics, National University of Colombia, Bogota City

Experience

2009-2010Research Fellow,University of Texas at San Antonio
2002-presentProfessor, National University of Colombia, Department of Physics and Chemistry Manizales, Colombia
2002–presentDirector, Laboratory Physical Properties of Materials (POM), National University of Colombia Campus, Manizales
2002-2004Department Chair, Department of Physics and Chemistry, National University of Colombia

Publications: Conferences/Workshops/Symposiums/Journals/Books

[1]  Ultrasound-Assisted Growth of Vertically Aligned ZnO Nanorod Arrays for Flexible Dye Sensitized Solar Cells. Nanoscale Research Letters, by published. 2011.
[2]  Tunability Response in Exponentially Graded Ferroelectrics: A TIM Model Approach. Physica B: Condensed Matter, by published, 2011.
[3]  Influencia del Tiempo de Gelación sobre las Propiedades Estructurales, Vibracionales y Eléctricas del Compósito PEG0.2/V2O5. C. L. Londoño-Calderón, A. Londoño-Calderón, J. F. Jurado and C. Vargas-Hernández. Revista Superficie y Vacio, México, by published 2011.
[4]  Synthesis and Sensing Properties of SnO2 Thin Films Obtained by Condensed Vapors Deposition, M. F. Meléndrez, G. Cárdenas, C. Vargas-Hernandez, T. Andreu, and J. R. Morante. Sensor Letters, Vol. 9, N 4, 1282-1291 (2011).
[5]  Characterization of ZnO and ZnMnO nanostructures films deposited by SILAR method. Thin Solid Films 519 (2011) 7638–7643.
[6]  Modelo TIM y Caracterización de parámetros microscópicos en un sistema Ferroeléctrico: Aplicación al KNO3. Revista Colombiana de Fisica, aceptado Por Publicarse 2011.
[7]  Calculation of Excitons in ZnSe/CdSe/ZnSe thin wells ZnSe/CdSe/ZnSe. Revista Colombiana de Fisica, Aceptado para publicación 2011.
[8]  Growth and Morphology of Tin Nanoparticles Obtained by Condensation of Metal Vapors, M. F. Melendrez, C. Vargas-Hernandez, G. Cardenas. Accepted by published in DYNA 2011.
[9]  EPR studies of undoped KDP crystals, O. Almanza, M. J. Espitia, J. E. Muñoz-Bravo, C. Vargas-Hernádez, Revista Colombiana de Física, Vol. 42, No. 1 de 2010, pag. 827-830.
[10]  Studies of Strain in Heterostructures GaAs/GaAs, GaAs:C/GaAs and GaAs:Si/GaAs by Spectroscopy μ-Raman. J. F Jurado, C. Vargas Hernándeza, J. E. Sánchez and F. Racedo Niebles. AIP, XXII International Conference on Raman Spectroscopy. 2010 American Institute of Physics, paginas 1180-1181. Vol 1267, issue 1, Agosto 6, 2010.
[11]  A Rapid Microwave Synthesis at Low Temperatures, Electron Microscopy and Raman Study of MoO3 and WOx Nanostructures. Francis Leonard Deepak, Andrew J. Steveson, C. Vargas-Hernandez, Miguel Jose Yacaman Journal of Advanced Microscopy Research. 2010, Vol. 5, No. 1. Paginas 1-10.
[12]  Desorption influence of water on structural, electrical properties and molecular order of vanadium pentoxide xerogel films. C.L. Londono-Calderon, C. Vargas-Hernández, and J.F. Jurado Revista Mexicana de Fisica 56 (5) 411–415. Octubre 2010.
[13]  Kinetic and mechanism of diglycidyl ether of bisphenol a and trimetilen glicol dipaminobenzoate crosslinking. Fabio Augusto Mesa Rueda, Alneira Cuéllar Burgos, Carlos Vargas Hernández, Jairo Ernesto Perilla Perilla. Dyna, Año 77, Nro. 162, pp. 21-29. Medellín, Junio de 2010.
[14]  Modified clay characterized by Raman diffraction and x-ray. Alneira Cuéllar burgos, Fabio augusto mesa rueda, Carlos vargas Hernández, Jairo Ernesto perilla perilla. Dyna, año 77, nro. 164, pp. 39-44. Medellín, diciembre de 2010.
[15]  A synthesis route of gold nanoparticles without using a reducing agent. C. Vargas-Hernández, M. M. Mariscal, R. Esparza, and M. J. Yacaman. APPLIED PHYSICS LETTERS 96, 213115 .2010.
[16]  Interface roughness influence on exchange bias effect in La2/3Ca1/3MnO3/La1/3Ca2/3MnO3 bilayers. Vol. 45, N 4, pag. 6763-6768, J Mater Sci 2010.
[17]  Characterization of polyurethane-urea/montmorillonite nanocomposites using XRD and μ-Raman. Rev. Fac. Ing. Univ. Antioquia N.° 54 pp. 60-67. Agosto, 2010.
[18]  Sintering and structural properties of spinel ZnCr2O4, Suplemento de la Revista Latinoamericana de Metalurgia y Materiales 2009; S1 (2): 533-536.
[19]  Resistance measurements, XRD and micro-Raman for the Pr0.5Sr0.5MnO3 compound, Suplemento de la Revista Latinoamericana de Metalurgia y Materiales 2009; S1 (2): 485-488.
[20]  Synthesis, structural and electrical characterization of V2O5.nH2O films, César Leandro Londoño, Carlos Vargas Hernández. J Fabián Jurado, Revista Científica Guillermo de Ockham. Vol. 7, No. 2. Julio-Diciembre de 2009-ISSN: 1794-192X. pp. 11-18.
[21]  Geometry influence on the hysteresis loops behavior in LaCaMnO nanoparticles. monte carlo simulation on a Heisenberg-like model, IEEE Transactions on Magnetics, vol. 45, No. 11, november 2009.
[22]  Monte Carlo Simulation of the FM Layer Thickness Influence on the Exchange Bias in FM/AFM Bilayers. IEEE Transactions on Magnetics, VOL. 45, NO. 11, November 2009.
[23]  ZnO films doped with Mn by using the technique Silar, Suplemento de la Revista Latinoamericana de Metalurgia y Materiales 2009; S1 (2): 501-506.
[24]  Sintering and structural properties of the ZnCr2O4 spinel, Suplemento de la Revista Latinoamericana de Metalurgia y Materiales 2009; S1 (2): 533-536.
[25]  EPR, u-Raman and Crystallographic Properties of Spinel Type ZnCr2O4. C. Vargas-Hernandez, O. Almanza and J. F.Jurado, Journal of Physics: Conference Series 167 (2009) 012037.
[26]  Raman and XRD characterization of CNx thin films by laser Ablation. Revista Latinoamericana de Metalurgia y Materiales. 2009, 29 (2) 109-114.
[27]  Vibrational and structural analysis of Pr0.5sr0.5MnO3 compound, J. Rivera, J. E. Sánchez C. Vargas-Hernández, J. F. Jurado, Revista Colombiana de Física, vol. 41, No. 1, Enero 2009. Painas 1-3.
[28]  Comparison of the Crystallinity of ZnO films obtained by two procedures Silar. F. N. Jiménez-García1, L.F. Giraldo1, L.F. Agudelo1, J.F. Jurado 1, C. Vargas-Hernández, Revista Colombiana de Física, vol. 41, No. 2, Abril 2009. Paginas 264-267.
[29]  Synthesis, structure and properties of the La0.7K0.3MnO3, J. F. Jurado, J. E. Sanchez and C. Vargas-Hernandez. Physica B 403 (2008) 3612-3614.
[30]  XRD, μ-Raman optical absorption of ZnO film deposited by SILAR method. C. Vargas-Hernandez, F.N. Jimenez-Garcıa, J. F. Jurado, V. Henao Granada. Microelectronics Journal 39 (2008) 1347–1348.
[31]  Comparison of ZnO thin films deposited by three different SILAR processes, C. Vargas-Hernandez, F.N. Jimenez-Garcıa, J.F.Jurado, V. Henao Granada. Microelectronics Journal 39 (2008) 1349–1350.
[32]  Studies of heterostructures CdTe/GaAs by photoreflectance. Revista Colombiana de Física, Vol.37 N1 2007. Pagina 254-257.
[33]  Growth of aluminum oxide films by electrochemical methods, Scientie at thecnical, N34 mayo 2007, pagina 545-550.
[34]  Hot filament reactor to produce carbon films with the CVD technique. Revista Colombiana de Física. N34 Mayo 2007.
[35]  ZnO films deposited by the Silar method and Raman characterization. Scientia et technical, N37 diciembre de 2007. C. Vargas-Hernandez, F. N. Jimenez y V. Henao.
[36]  Growth of aluminum oxide films by electrochemical methods, Scientia et technical, N34 mayo de 2007. C. Vargas-Hernandez, F. N. Jimenez y L. Londoño.
[37]  Optical absorption of Zn(1-x) MnXCr2O4 OxySpinels, P. C. Ospina Zuluaga, J. Fabian Jurado, C. Vargas-Hernández. Revista Colombiana De Física, Vol. 39, No. 2, 2007, paginas 343-346.
[38]  AC conductivity and relaxation processes in Nd0.5Ca0.5MnO3, Scientia et Técnica N30, may0 2006, pagina 345-348.
[39]  Selective modulation of surfaces and interfaces through photorreflectance F. N. Jiménez-García, H. F. Gonzales Agudelo, C. Vargas–Hernandez Revista Colombiana de Física. Vol. 38 N4, 2006, pagina1563-1566.
[40]  Chemical bath deposition of CdSe films on glass substrates, V. C. Lara, J. E. Vallejo, L. J. Henao, C. Vargas-Hernandez Revista Colombiana de Física. Vol. 38, N4, 2006, pagina 1523-1526.
[41]  Determination of the D term to zero field of the ZnCr2O4 spinel. C. Vargas-Hernández, P. Ospina Zuluaga, J. F. Jurado Revista Colombiana de Física, Vol. 38, N3, 2006, pagina 1126-1129.
[42]  AC conductivity and relaxation processes in Pr0.5Ca0.5MnO3.J. F. Jurado, A.R. Muñoz y C. Vargas-Hernández Revista Colombiana de Física, Vol. 38 N3, 2006, pagina 1062-1065.
[43]  Structural studies, thermogravimetry and calorimetry near the La0.5Sr0.5MnO3 PM-FMM transition, J. A Játiva, E. Ortiz, J. C. Trochez, C. Vargas-Hernández, J. F. Jurado Revista Colombiana de Física, Vol.38 N3 2006. Página 1058-1061.
[44]  Structural characterization of carbon films on silicon substrates grown by HFCVD technique, J .I. Cárdenas-Jimènez, J. E. Sanchez, C. Vargas-Hernández. Revista Colombiana de Física. Vol. 38 N1 2006. Pagina 33-36.
[45]  Hot filament reactor to produce carbon films by CVD technique. Scientia et technical, N34 mayo de 2006. C. Vargas-Hernandez, I. Cardenas.
[46]  Optical characterization of Zn(1-X)MnXCr2O4 spinel, Scientia et technical, N32 December de 2006. C. Vargas-Hernandez, P. Ospina.
[47]  Optical Characterization of Zn(1-X)MnXCr2O4 Spinel, Revista Colombiana de Física. N32 diciembre 2006, pagina 393-396.
[48]  Strian studies in ZnSe/GaAs (001) heteoestructures by Photorreflectance, F. N. Jiménez-García, H. Ariza Calderón, C. Vargas–Hernandez1, Revista Colombiana De Física, Vol. 38, No. 2. 2006, paginas, 870-873.
[49]  Magnetic and crystallographic studies of ZnCr2-2x In2XS4 C spinels. Vargas-Hernandez, P. C. Ospina Zuluaga, J. Sepúlveda Gómez. Revista Colombiana De Física, Vol. 38, No. 3. 2006. Pagina 1130-1133.
[50]  XPS, SEM and XRD Investigations of CdSe films prepared by chemical bath deposition, C. Vargas-Hernández, V. C. Lara, J. E. Vallejo, J. F. Jurado and O. Giraldo, Physical Status solidid (b) 242, Nº 9, 1897-1901 (2005).
[51]  Structural characterization by XPS of the carbon films grown by HF, J .I. Cárdenas-Jimènez, W. Rivera2, F.N. Jiménez, C. Vargas-Hernández. Revista Colombiana De Física, vol. 37, No. 1, 2005, paginas 5-8.
[52]  Photoreflectance and Auger Studies of CdTe films, Scientia et Technical, N27 abril de 2005, pagina 197-200.
[53]  Studies of the CdTe/GaAs (100) heterostructures by photorefelctance with variable temperatures, F. N. Jiménez-García, D. G. Espinosa, J. I. Cardenas Jiménez. H. Ariza–Calderón, C. Vargas–Hernandez, Revista Colombiana De Física, vol. 37, No. 1. 2005, Pagina 254-257.
[54]  In and As concentrations on the surface of GaInAsSb films grown by liquid phase epitaxy, L. Tirado-Mejía, J. Segura, J. Osorio, J. Gómez, C. Vargas y H. Ariza-Calderón Revista Colombiana de Física, Vol.37 N1 2005. Pagina 38-41.
[55]  Photoreflectance and photoluminescence studies of ZnSe thin films without chemical treatment. C. Vargas-Hernández, J. J. Agudelo. Revista Colombiana de Física, Vol. 36, N 1, 2004. pag. 18-21.
[56]  Calculation of lattice parameter in ZnCr2S4sulphocrohomites, Scientia et téchnica, vol 26 2004, pagina 151-154. C. Vargas-Hernández, V. C. Lara and J. E. Vallejo.
[57]  Photoreflectance and photoluminescence studies of GaAs without chemical treatment. C. Vargas-Hernández, J.J. Agudelo, D. G. Espinosa, Revista Colombiana de Física, Vol. 36, N 1, 2004. pag. 14-17.
[58]  Differential photoreflectance of CdTe films grown by MBE. C. Vargas-Hernández, D. G: Espinosa, H. Ariza-Calderon. Revista Colombiana de Física, Vol. 35, N 2, 2003, pag. 380-383.
[59]  Optical properties of ZnSe/CdTe/GaAs(001) heterostructures grown by MBE, C. Vargas-Hernendez, I. Hernández-Calderón, Revista Colombiana de Física, Vol. 35, N 2, 2003, pag. 315-318.
[60]  Strain relaxation during the layer by layer growth of cubic CdSe onto ZnSe. O. Melo, C. Vargas-Hernández, I. Hernandez-Calderon., APPLIED PHYSICS LETTERS, Vol 82, number 1, 6 january 2003, pag 43.
[61]  Measurement of the thickness of ZnSe films by interference technique. C. Vargas-Hernández J. F. Jurado. Revista NOOS, numero 17, 2003, Universidad Nacional de Colombia.
[62]  Using the Photoreflectance technique in thin films. C. Vargas-Hernández, J. F. Jurado. Revista NOOS, numero 17, 2003, Universidad Nacional de Colombia.
[63]  GaAs Passivation due to CdTe films, C. Vargas-Hernández, Revista NOOS, Numero 16, diciembre 2002, Universidad Nacional de Colombia.
[64]  Optical properties of ultra-thin CdSe quantum wells. C. Vargas-Hernández, O. De Melo, I. Hernández-Calderón. Physical Status Solidi. (b) 230, N 1, 331-334 (2002).
[65]  Photoreflectance and photoluminescence Characterization of ZnSe/CdTe/GaAs(100) heterostructures, C. Vargas-Hernández Revista NOOS, numero 16, diciembre del 2002, Universidad Nacional de Colombia.
[66]  Electrical and crystallographic properties of the spinel type ZnCr2-2xIn2xS4. C. Vargas-Hernández, B. Acevedo-Frías, F. F. Serrano-Suárez. Sociedad Mexicana de Superficies y Vacío, vol. 9, diciembre 1999. Pag. 222-225.
[67]  Interfacial reactivity of ZnSe/CdTe layer grown by molecular beam epitaxy. I. Hernández-Calderón, F. S. Aguirre-Tostado, C. Vargas-Hernández, E. López-Luna and O de Melo. II International Workshop on Optoelectronic materials and their Applications (Including Solar Cells). La Habana-Cuba, 2-6 november 1998. Pag.113.
[68]  Optical properties of the ZnCr2-2xIn2xS4 sulphochromites. C. Vargas-Hernández, J. M. Díaz, J. Díaz S. Revista Colombiana de Física. 28, 1996, pag. 59.
[69]  Crystallographic study of the spinels ZnCr2-2xIn2xS4. C. Vargas-Hernández, J. M. Díaz, Memorias del Primer seminario colombiano de cristalografía, febrero 23 de 1995, pag. 23-29.
[70]  Studies of sulphochromites ZnCr2-2xIn2xS4. C. Vargas-Hernández, J. M. Díaz, J. Díaz S. Revista Colombiana de Física. 26, 1994. pag. 61-70.