Graphene and graphene oxide based materials for optoelectronics

Organic-inorganic materials for optoelectronics

Transparent films with electronic functionalities

Design, growth and characterisation of perovskite heterostructures

Oxides: bulk, thin films and nanoparticles

Magnetic nanostructured materials with tunable properties

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Graphene and graphene oxide based materials for optoelectronics

 General objectives

Design and fabrication of hybrid materials with optimal symbiosis of organic semiconductors, inorganic nanoparticles and graphene properties.

Search of new or improved features of the resulting nanostructured hybrid films,

Applications: transparent electrodes and nanostructured active layers in photovoltaic cells, electroluminescent devices, field effect transistors and sensors.

Approach

Materials design and fabrication + Fundamental study of materials +  Device fabrication +  Technology development

Basic studies

Resonant Raman processes in graphene oxide

Chemical and thermal reduction mechanisms in few layer thin films and bulk graphene oxides.

Stacking of graphene oxide few-layer films and defects produced by thermal and chemcial rediction mechanisms

Transparent electrodes:  Cheap, green, scalable to large areas, Indium free, on any substrate, in particular  flexible  ⇒  Graphene oxide (GO)

Optimization of chemically derived few-layer graphene films for transparent electrodes with doping control

Hybrid graphene based materials: chemically derived graphene thin films or CVD graphene with metallic, semiconductor or oxide nanoparticles.

Graphene patterning and nanostructuring – graphene quantum dots 

Large scale patterning of GO and G films for integration in devices,  Nano-Graphene-GQDs

Development and optimization of a novel mask-free cost-effective technique for micro/nano-patterning based on electrical micro/nano-discharges compatible with large area manufacturing.

CVD graphene and nanographene on  different metal thin films.

Building a home made set-up:  CVD + sputtering technique

 

Related Projects:

 

“MATERIALES HIBRIDOS BASADOS EN GRAFENO PARA APLICACIONES EN ENERGIA Y DETECCION OPTICA”. Enero 2016- diciembre 2018,  MAT2015-65356-C3-1.

“PHAMA 2.0, Materiales híbridos avanzados para aplicaciones fotónicas” Programa de I + D entre grupos de investigación de la Comunidad de Madrid. Proyecto concedido. 2015-2018.

“Materiales híbridos basados en grafeno para aplicaciones optoelectrónicas: optimización de sus propiedades y procesado de dispositivos de bajo coste” ICMM. MAT2012- 37276-C03-01

“Sistemas de almacenamiento de energía con grafeno para vehículos eléctricos” Proyecto Repsol-INSPIRE. UPM-CSIC. Abril 2013 – diciembre 2015

Graphene Flagship, Octoubre 2013. Workpackage Materials

 Publications:

  • Graphene – ultrasmall silver nanoparticle interactions and their effect on electronic transport and Raman enhancement – F. Jimenez-Villacorta, E. Climent-Pascual, R. Ramirez-Jimenez, J. Sanchez-Marcos, C. Prieto, A. de Andres, Carbon 101, 305 (2016).
  • Elastic constants of graphene oxide few-layer films: correlations with interlayer stacking and bonding – RJJ. Rioboo, E. Climent-Pascual, X. Diez-Betriu, F. Jimenez-Villacorta, C. Prieto, A. de Andres, J Mater Chem C 3, 4868 (2015).
  • Large area graphene and graphene oxide patterning and nanographene fabrication by one-step lithography – E. Climent-Pascual, M. Garcia-Velez, AL. Alvarez, C. Coya, C. Munuera, X. Diez-Betriu, M. Garcia-Hernandez, A. de Andres, Carbon 90, 110 (2015).
  • Lactate biosensor based on a bionanocomposite composed of titanium oxide nanoparticles, photocatalytically reduced graphene, and lactate oxidase – E. Casero, C. Alonso, MD. Petit-Dominguez, L. Vazquez, AM. Parra-Alfambra, P. Merino, S. Alvarez-Garcia, A. de Andres, E. Suarez, F. Pariente, E. Lorenzo, Microchim Acta 181, 79 (2014).
  • Breakdown into nanoscale of graphene oxide: Confined hot spot atomic reduction and fragmentation – G. Goncalves, M. Vila, I. Bdikin, A. de Andres, N. Emami, RAS. Ferreira, LD. Carlos, J. Gracio, PAAP Marques, Scientific Reports 4, 6735 (2014).
  • Graphene-oxide stacking and defects in few-layer films: Impact of thermal and chemical reduction – X. Diez-Betriu, FJ. Mompeam, C. Munuera, J. Rubio-Zuazo, R. Menendez, GR. Castro, A. de Andres, Carbon 80, 40 (2014).
  • Raman spectroscopy for the study of reduction mechanisms and optimization of conductivity in graphene oxide thin films – X. Diez-Betriu, S. Alvarez-Garcia, C. Botas, P. Alvarez, J. Sanchez-Marcos, C. Prieto, R. Menendez, A. de Andres, J Mater Chem C 1, 6905 (2013).
  • Comparative Response of Biosensing Platforms Based on Synthesized Graphene Oxide and Electrochemically Reduced Graphene – E. Casero, C. Alonso, L. Vazquez, MD. Petit-Dominguez, AM. Parra-Alfambra, M. de la Fuente, P. Merino, S. Alvarez-Garcia, A. de Andres, F. Pariente, E. Lorenzo, Electroanal 25, 154 (2013).
  • Carbon nanotubes-mesoporous silica composites as controllable biomaterials – M. Vila, JL. Hueso, M. Manzano, I. Izquierdo-Barba, A. de Andres, J. Sanchez-Marcos, C. Prieto, M. Vallet-Regi, J Mater Chem 19, 7745 (2009).

Organic-inorganic materials for optoelectronics

Study, design and growth of hybrid devices based in inorganic and organic heterostructures for organic electronics applications as transistors and diodes

Rare earth based organic and inorganic materials for applications in lighting and optical thermometry and as phosphors.

Rare earth doped nanoparticles

Metal organic frameworks with rare earths (MOF-Re)

Related Projects:

“Materiales híbridos avanzados para aplicaciones fotónicas” Programa de I + D entre grupos de investigación de la Comunidad de Madrid. S2009/MAT-1756.

Some publications:

  • Highly luminescent pure-red-emitting fluorinated beta-diketonate europium(III) complex for full solution-processed OLEDs – JP. Martins, P. Martin-Ramos, C. Coya, MR. Silva, MES. Eusebio, A. de Andres, AL. Alvarez, J. Martin-Gil, J Lumin 159, 17 (2015).
  • Structural and Photoluminescence Study of Eu3+/TiO2 Xerogels as a Function of the Temperature Using Optical Techniques – M. Borlaf, MT. Colomer, R. Moreno, A. de Andres, J Am Ceram Soc 98, 338 (2015).
  • Multimetal rare earth MOFs for lighting and thermometry: tailoring color and optimal temperature range through enhanced disulfobenzoic triplet phospho – RF. D’Vries, S. Alvarez-Garcia, N. Snejko, LE. Bausa, E. Gutierrez-Puebla, A. de Andres, MA. Monge, J Mater Chem C 1, 6316 (2013).
  • Star-shaped hexaaryltriindoles small molecules: Tuning molecular properties towards solution processed organic light emitting devices – C. Coya, C. Ruiz, AL. Alvarez, S. Alvarez-Garcia, EM. Garcia-Frutos, B. Gomez-Lor, A. de Andres, Org Electron 13, 2138 (2012).
  • Stable organic radical stacked by in situ coordination to rare earth cations in MOF materials – F. Gandara, N. Snejko, A. de Andres, JR. Fernandez, JC. Gomez-Sal, E. Gutierrez-Puebla, A. Monge, Rsc Advances 2, 949 (2012).
  • Optical properties of nanometric TiO2 clusters deposited on thin films by high pressure sputtering – R. Martinez-Morillas, J. Sanchez-Marcos, A. de Andres, C. Prieto, Surf Coat Tech 204, 1893 (2010).
  • Crystal structure and charge-transport properties of N-trimethyltriindole: Novel p-type organic semiconductor single crystals – EM. Garcia-Frutos, E. Gutierrez-Puebla, MA. Monge, R. Ramirez, P. de Andres, A. de Andres, R. Ramirez, B. Gomez-Lor, Org Electron 10, 643 (2009).
  • A rare-earth MOF series: Fascinating structure, efficient light emitters, and promising catalysts – F. Gandara, A. de Andres, B. Gomez-Lor, E. Gutierrez-Puebla, M. Iglesias, MA. Monge, DM. Proserpio, N. Snejko, Cryst Growth Des 8, 378 (2008).
  • Self-sterilized EVOH-TiO2 nanocomposites: Interface effects on biocidal properties – ML. Cerrada, C. Serrano, M. Sanchez-Chaves, M. Fernandez-Garcia, F. Fernandez-Martin, A. de Andres, RJJ. Rioboo, A. Kubacka, M. Ferrer, M. Fernandez-Garcia, Adv Funct Mater 18, 1949 (2008).

Transparent films with electronic functionalities

Design, growth and optimization of new transparent oxide and nitride based thin films and multilayers with tuned electronic and piezoelectric properties.

  • Indium-tin oxide thin films deposited at room temperature on glass and PET substrates: Optical and electrical properties variation with the H-2-Ar spu – L. Alvarez-Fraga, F. Jimenez-Villacorta, J. Sanchez-Marcos, A. de Andres, C. Prieto, Appl Surf Sci 344, 217 (2015).
  • Huge Photoresistance in Transparent and Conductive Indium Titanium Oxide Films Prepared by Electron Beam-Physical Vapor Deposition – Rocio Martinez-Morillas, Rafael Ramirez, Jorge Sanchez-Marcos, Emiliano Fonda, Alicia de Andres, Carlos Prieto, Acs Appl. Mater. Interfaces 6, 1781 (2014).
  • Amorphous-nanocrystalline Al doped ZnO transparent conducting thin films – X. Diez-Betriu, R. Jimenez-Rioboo, J. Sanchez-Marcos, E. Cespedes, A. Espinosa, A. de Andres, J Alloy Compd 536, S445 (2012).
  • Optical properties of nanometric TiO2 clusters deposited on thin films by high pressure sputtering – R. Martinez-Morillas, J. Sanchez-Marcos, A. de Andres, C. Prieto, Surf Coat Tech 204, 1893 (2010).
  • Optical and transport properties of Ti-doped In2O3 thin films prepared by electron beam physical vapour deposition – J. Sanchez-Marcos, I. M. Ochando, R. Escobar Galindo, R. Martinez-Morillas, C. Prieto, Phys Status Solidi A 207, 1549 (2010).

Design, growth and characterisation of perovskite heterostructures

as macroscopic objects but also with particular focus on the study of interfaces (Oxidetronics). Optimizing the mechanisms involved in the control of: 1.-Magnetoresitsance/electroresitance from strain fields in piezo/manganite heterosetructures i. e. manipulation of the magnetic and electronic states of the ferromagnetic (manganite)layers byactuation upon the piezoelectric layer; 2.-Magnetoresistance in manganite cuprate heterostructures,determining the relative importance of the mechanism involved ( proximity effects, quasiparticles diffusion, stray fields and electronic reconstruction at the interfaces). 3. The electronic structure at the interface between complex oxides as a new route to doping alternative to the conventional chemical element substitution. This scenario includes the electrostatic doping due to electric field induced depletion and accumulation layers, bandbending at pn junctions or Schottky contacts as well as charge tranfer porcoesses stemming from valence or polarity mismatch.

Oxides: bulk, thin films and nanoparticles

Preparation and study of oxides with interesting magnetic, optical and electronic properties and their correaltion to the structure and the nanosize. 1) structure-properties correlation: the structural repercussion of a high covalency of themetal-oxygen bond; effect of the charge disproportionation; 2) study of the metal-insulator transitions in oxides with strong electronic correlation; 3) comprehension of the magnetic coupling mechanisms and transport in magnetoresistive materials; 5) study of the ordered magnetic structures and charge ordering phenomena in mixed-valence systems; 6) Understanding multiferroism: unveiling the mechanisms of magnetic-electric coupling.

  • Structural behavior of Co/Cu multilayers studied by X-ray absorption spectroscopy – C. Prieto, R. Castaner, JL. Martinez, A. deAndres, J. Trigo, JM. Sanz, J Magn Magn Mater 161, 31 (1996).

Magnetic nanostructured materials with tunable properties

Preparation of thin films formed by nanometric structures presenting ferromagnetism at room temperature by overcoming the superparamagnetic limit. The nanometric size of the ferromagnetic clusters allows, for instance, the extreme packing needed in high density recording materials or tunneling magnetoresistance needed for spintronic devices.

  • Exchange bias and magnetic behaviour of iron nanoclusters prepared by the gas aggregation technique – J. Sanchez-Marcos, MA. Laguna-Marco, R. Martinez-Morillas, F. Jimenez-Villacorta, E. Cespedes, N. Menendez, C. Prieto, J Alloy Compd 536, S265 (2012).
  • On the Origin of the Magnetism of Mn-Zn-O Systems: Structural, Electronic, and Magnetic Study of Exotic MnO2-delta/ZnO Thin Films – E. Cespedes, MA. Laguna-Marco, F. Jimenez-Villacorta, J. Chaboy, R. Boada, C. Guglieri, A. de Andres, C. Prieto, J Phys Chem C 115, 24092 (2011).
  • Gold embedding influence on the magnetic behaviour of iron in Fe/Si3N4 multilayers prepared by sputtering – J. Sanchez-Marcos, F. Jimenez-Villacorta, E. Cespedes, A. Munoz-Martin, C. Prieto, Mater Lett 65, 13 (2011).
  • Decoupling mechanisms and magnetic stability of nanostructured iron chains prepared by sputtering – F. Jimenez-Villacorta, E. Cespedes, C. Ocal, C. Prieto, Appl Phys Lett 98, 102513 (2011).
  • X-ray magnetic circular dichroism study of the blocking process in nanostructured iron-iron oxide core-shell systems – F. Jimenez-Villacorta, C. Prieto, Y. Huttel, ND. Telling, G. van der Laan, Phys Rev B 84, 172404 (2011).
  • Exchange bias in iron oxide nanoclusters – J. Sanchez-Marcos, MA. Laguna-Marco, R. Martinez-Morillas, E. Cespedes, F. Jimenez-Villacorta, N. Menendez, C. Prieto, J Phys: Condens Matter 23, 476003 (2011).
  • Study of nanoconductive and magnetic properties of nanostructured iron films prepared by sputtering at very low temperatures – F. Jimenez-Villacorta, C. Munuera, C. Ocal, C. Prieto, J Nanopart Res 12, 1117 (2010).
  • Effects of interparticle interactions in magnetic Fe/Si3N4 granular systems – F. Jimenez-Villacorta, J. Sanchez-Marcos, E. Cespedes, M. Garcia-Hernandez, C. Prieto, Phys Rev B 82, 134413 (2010).
  • Ferromagnetism in SnO2-based multilayers: Clustering of defects induced by doping – A. Espinosa, M. Garcia-Hernandez, N. Menendez, C. Prieto, A. de Andres, Phys Rev B 81, 064419 (2010).
  • Magnetic properties and interaction mechanisms of iron-based core-shell structures prepared by sputtering at low substrate temperatures – F. Jimenez-Villacorta, C. Prieto, J Phys: Condens Matter 20, 085216 (2008).
  • X-ray absorption and magnetic circular dichroism characterization of a novel ferromagnetic MnNx phase in Mn/Si3N4 multilayers – E. Cespedes, Y. Huttel, L. Martinez, A. de Andres, J. Chaboy, M. Vila, ND. Telling, G. van der Laan, C. Prieto, Appl Phys Lett 93, 252506 (2008).