Research and publications

• Publications
  30 publications

  2024 2023 2022 2021 2020 2018 2017 2016 2015 2014 2013 2012 2011

  Excited-State Dynamics of MAPbBr3: Coexistence of Excitons and Free Charge Carriers at Ultrafast Times
  Nikolaos Droseros, Parnian Ferdowsi, Efrain Ochoa Martinez, Michael Saliba, Natalie Banerji, Demetra Tsokkou, The Journal of Physical Chemistry C (2024) | Journal article

  Host–Guest Complexation in Wide Bandgap Perovskite Solar Cells
  Parnian Ferdowsi, Gianluca Bravetti, Moritz C. Schmidt, Efrain Ochoa-Martinez, Shanti Bijani, Aurora Rizzo, Silvia Colella, Ullrich Steiner, Bruno Ehrler, Dominik J. Kubicki, Jovana V. Milić, Solar RRL (2023) | Journal article

  Nanocrystalline Flash Annealed Nickel Oxide for Large Area Perovskite Solar Cells
  Efrain Ochoa‐Martinez, Shanti Bijani‐Chiquero, María del Valle Martínez de Yuso, Subhrangsu Sarkar, Horus Diaz‐Perez, Roberto Mejia‐Castellanos, Felix Eickemeyer, Michael Grätzel, Ullrich Steiner, Jovana V. Milić, Advanced Science (2023) | Journal article

  Encapsulated salts in velvet worm slime drive its hardening
  Yendry Regina Corrales-Ureña and Fabienne Schwab and Efraín Ochoa-Martínez and Miguel Benavides-Acevedo and José Vega-Baudrit and Reinaldo Pereira and Klaus Rischka and Paul-Ludwig Michael Noeske and Alexander Gogos and Dimitri Vanhecke and Barbara Rothen-Rutishauser and Alke Petri-Fink, Scientific Reports (2022) | Journal article

  Experimental optical and structural properties of ZnS, MgF2, Ta2O5, Al2O3 and TiO2 deposited by electron beam evaporation for optimum anti-reflective coating designs
  Efrain Ochoa Martinez, Solar Energy (2022) | Journal article

  Reduced defect density in crystalline halide perovskite films via methylamine treatment for the application in photodetectors
  Emilia R. Schütz, Azhar Fakharuddin, Yenal Yalcinkaya, Efrain Ochoa-Martinez, Shanti Bijani, Abd. Rashid bin Mohd Yusoff, Maria Vasilopoulou, Tobias Seewald, Ullrich Steiner, Stefan A. L. Weber, Lukas Schmidt-Mende, APL Materials (2022) | Journal article

  Evidence of Decreased Optical Absorption of Chemical Vapor Deposition Graphene Multilayers Deposited on Semiconductor Structures
  Laura Barrutia, Efraín Ochoa-Martínez, Mercedes Gabás, Alba Centeno, Amaia Zurutuza, Ignacio Rey-Stolle, Carlos Algora, ACS Photonics (2022) | Journal article

  Accounting for Optical Generation in the Quasi-Neutral Regions of Perovskite Solar Cells
  Parnian Ferdowsi, Farzan Jazaeri, Efrain Ochoa-Martinez, Jovana V. Milic, Michael Saliba, Ullrich Steiner, Jean-Michel Sallese, IEEE Journal of the Electron Devices Society (2022) | Journal article

  Get tougher
  Efrain Ochoa-Martinez, Jovana V. Milić, Nature Energy (2021) | Journal article

  Physical Passivation of Grain Boundaries and Defects in Perovskite Solar Cells by an Isolating Thin Polymer
  Efrain Ochoa-Martinez and Mario Ochoa and Roberto D. Ortuso and Parnian Ferdowsi and Romain Carron and Ayodhya N. Tiwari and Ullrich Steiner and Michael Saliba, ACS Energy Letters (2021) | Journal article

  One-Step Solvent-Free Mechanochemical Incorporation of Insoluble Cesium Salt into Perovskites for Wide Band-Gap Solar Cells
  Parnian Ferdowsi and Efrain Ochoa-Martinez and Ullrich Steiner and Michael Saliba, Chemistry of Materials (2021) | Journal article

  Shaping Perovskites: In Situ Crystallization Mechanism of Rapid Thermally Annealed, Prepatterned Perovskite Films.
  ACS applied materials & interfaces (2021) | Journal article

  Ultrathin polymeric films for interfacial passivation in wide band-gap perovskite solar cells
  Ferdowsi, P. and Ochoa-Martinez, E. and Alonso, S.S. and Steiner, U. and Saliba, M., Scientific Reports (2020) | Journal article

  Doping effects on the composition, electric and optical properties of MBE-grown 1.1 eV GaNAsSb layers
  M Gabás and E Ochoa-Martínez and K Bielak and D Pucicki and I Lombardero and L Barrutia and D Fuertes-Marrón and M Ochoa and I García and S F Yoon and W K Loke and S Wickasono and K H Tan and A D Johnson and J I Davies and C Algora, Semiconductor Science and Technology (2020) | Journal article

  Carbon-Assisted Stable Silver Nanostructures
  Abdollahi, S.N. and Ochoa Martínez, E. and Kilchoer, C. and Kremer, G. and Jaouen, T. and Aebi, P. and Hellmann, T. and Mayer, T. and Gu, Y. and Wiesner, U.B. and Steiner, U. and Wilts, B.D. and Gunkel, I., Advanced Materials Interfaces (2020) | Journal article

  Refractive indexes and extinction coefficients of n- and p-type doped GaInP, AlInP and AlGaInP for multijunction solar cells
  Ochoa-Martínez, E. and Barrutia, L. and Ochoa, M. and Barrigón, E. and García, I. and Rey-Stolle, I. and Algora, C. and Basa, P. and Kronome, G. and Gabás, M., Solar Energy Materials and Solar Cells (2018) | Journal article

  Nanostructural changes upon substitutional Al doping in ZnO sputtered films
  Landa-Cánovas, A.R. and Santiso, J. and Agulló-Rueda, F. and Herrero, P. and Navarrete-Astorga, E. and Ochoa-Martínez, E. and Ramos-Barrado, J.R. and Gabás, M., Ceramics International (2018) | Journal article

  Evolution of Al:ZnO optical response as a function of doping level
  Ochoa-Martínez, E. and Navarrete-Astorga, E. and Ramos-Barrado, J. and Gabás, M., Applied Surface Science (2017) | Journal article

  Characterization of the interface between highly conductive Ga:ZnO films and the silicon substrate
  Gabás, M. and Ochoa-Martínez, E. and Navarrete-Astorga, E. and Landa-Cánovas, A.R. and Herrero, P. and Agulló-Rueda, F. and Palanco, S. and Martínez-Serrano, J.J. and Ramos-Barrado, J.R., Applied Surface Science (2017) | Journal article

  Modelling of lattice matched dilute nitride 4-junction concentrator solar cells on Ge substrates
  Ochoa, M. and García, I. and Lombardero, I. and Ayllón, L. and Rey-Stolle, I. and Algora, C. and Johnson, A. and Davies, J.I. and Tan, K.H. and Loke, W.K. and Wicaksono, S. and Yoon, S.F. and Ochoa-Martínez, E. and Gabás, M., AIP Conference Proceedings: (2016) | Conference

  Advances towards 4J lattice-matched including dilute nitride subcell for terrestrial and space applications
  Ochoa, M. and Garcia, I. and Lombardero, I. and Ayllon, L. and Cifuentes, L. and Rey-Stolle, I. and Algora, C. and Johnson, A.D. and Davies, J.I. and Tan, K.H. and Loke, W.K. and Wicaksono, S. and Yoon, S.F. and Ochoa, E. and Gabas, M. and Thomas, T. and Ekins-Daukes, N.J. and Garcia, H. and Castan, H. and Duenas, S. and Estrade, S. and Peiro, F., Conference Record of the IEEE Photovoltaic Specialists Conference: (2016) | Conference

  Optical properties of Si nanowires: Dependence on substrate crystallographic orientation and light polarization
  Badán, J.A. and Marotti, R.E. and Dalchiele, E.A. and Ariosa, D. and Martín, F. and Leinen, D. and Ochoa, E. and Ramos-Barrado, J.R., Journal of Materials Research (2015) | Journal article

  Determination of a refractive index and an extinction coefficient of standard production of CVD-graphene
  Ochoa-Martínez, E. and Gabás, M. and Barrutia, L. and Pesquera, A. and Centeno, A. and Palanco, S. and Zurutuza, A. and Algora, C., Nanoscale (2015) | Journal article

  Fabrication and characterization of thin silicon solar cells produced by in-line spray coating
  Ochoa-Martínez, E. and Vázquez, C. and Solís, D. and Hoces, I. and Freire, I. and Jimeno, J.C. and Ramos-Barrado, J., RSC Advances (2015) | Journal article

  Study of the phosphorus emitter of Cz-Si solar cells obtained by in-line spray coating
  Ochoa-Martínez, E. and Vázquez, C. and Ramos-Barrado, J., Solar Energy (2014) | Journal article

  Progress on Laser Assisted Nickel Seed Layer Deposition for Front Contact Copper Plating
  Energy Procedia: (5.9.2013) | Conference

  Low cost spray-coating boron diffusion on n-type silicon
  Astorga, E.N. and Martinez, E.O. and Barrado, J.R.R., Proceedings of the 2013 Spanish Conference on Electron Devices, CDE 2013: (2013) | Conference

  Fabrication and characterization of thin c-Si solar cells by low cost methods
  Ochoa-Martínez, E. and Gabás, M. and Vázquez, C. and Hoces, I. and Jimeno, J.C. and Hartiti, B. and Ramos-Barrado, J.R., Conference Record of the IEEE Photovoltaic Specialists Conference: (2012) | Conference

  Highly conductive Ga-doped ZnO thin films deposited onto Si wafers: Interface characterization
  Ochoa, E. and Gabás, M. and Bijani, S. and Palanco, S. and Landa-Cánovas, A.R. and Herrero, P. and Agulló-Rueda, F. and Díaz-Carrasco, P. and Ramos-Barrado, J.R., Conference Record of the IEEE Photovoltaic Specialists Conference: (2012) | Conference

  Emitter diffusion method for extremely thin silicon wafers
  Ochoa-Martínez, E. and Merchán, D. and Romero, R. and Gabás, M. and Martínez, L. and Martín, F. and Leinen, D. and Ramos-Barrado, J.R. and Vázquez, C. and Hartiti, B., Proceedings of the 8th Spanish Conference on Electron Devices, CDE'2011: (2011) | Conference

• Research and Publications
  30 publications

  Journal article Conference

  Excited-State Dynamics of MAPbBr3: Coexistence of Excitons and Free Charge Carriers at Ultrafast Times
  The Journal of Physical Chemistry C (2024) | Journal article

  Host–Guest Complexation in Wide Bandgap Perovskite Solar Cells
  Solar RRL (2023) | Journal article

  Nanocrystalline Flash Annealed Nickel Oxide for Large Area Perovskite Solar Cells
  Advanced Science (2023) | Journal article

  Encapsulated salts in velvet worm slime drive its hardening
  Scientific Reports (2022) | Journal article

  Experimental optical and structural properties of ZnS, MgF2, Ta2O5, Al2O3 and TiO2 deposited by electron beam evaporation for optimum anti-reflective coating designs
  Solar Energy (2022) | Journal article

  Reduced defect density in crystalline halide perovskite films via methylamine treatment for the application in photodetectors
  APL Materials (2022) | Journal article

  Evidence of Decreased Optical Absorption of Chemical Vapor Deposition Graphene Multilayers Deposited on Semiconductor Structures
  ACS Photonics (2022) | Journal article

  Accounting for Optical Generation in the Quasi-Neutral Regions of Perovskite Solar Cells
  IEEE Journal of the Electron Devices Society (2022) | Journal article

  Get tougher
  Nature Energy (2021) | Journal article

  Physical Passivation of Grain Boundaries and Defects in Perovskite Solar Cells by an Isolating Thin Polymer
  ACS Energy Letters (2021) | Journal article

  One-Step Solvent-Free Mechanochemical Incorporation of Insoluble Cesium Salt into Perovskites for Wide Band-Gap Solar Cells
  Chemistry of Materials (2021) | Journal article

  Shaping Perovskites: In Situ Crystallization Mechanism of Rapid Thermally Annealed, Prepatterned Perovskite Films.
  ACS applied materials & interfaces (2021) | Journal article

  Ultrathin polymeric films for interfacial passivation in wide band-gap perovskite solar cells
  Scientific Reports (2020) | Journal article

  Doping effects on the composition, electric and optical properties of MBE-grown 1.1 eV GaNAsSb layers
  Semiconductor Science and Technology (2020) | Journal article

  Carbon-Assisted Stable Silver Nanostructures
  Advanced Materials Interfaces (2020) | Journal article

  Refractive indexes and extinction coefficients of n- and p-type doped GaInP, AlInP and AlGaInP for multijunction solar cells
  Solar Energy Materials and Solar Cells (2018) | Journal article

  Nanostructural changes upon substitutional Al doping in ZnO sputtered films
  Ceramics International (2018) | Journal article

  Evolution of Al:ZnO optical response as a function of doping level
  Applied Surface Science (2017) | Journal article

  Characterization of the interface between highly conductive Ga:ZnO films and the silicon substrate
  Applied Surface Science (2017) | Journal article

  Optical properties of Si nanowires: Dependence on substrate crystallographic orientation and light polarization
  Journal of Materials Research (2015) | Journal article

  Determination of a refractive index and an extinction coefficient of standard production of CVD-graphene
  Nanoscale (2015) | Journal article

  Fabrication and characterization of thin silicon solar cells produced by in-line spray coating
  RSC Advances (2015) | Journal article

  Study of the phosphorus emitter of Cz-Si solar cells obtained by in-line spray coating
  Solar Energy (2014) | Journal article

  Modelling of lattice matched dilute nitride 4-junction concentrator solar cells on Ge substrates
  Ochoa, M. and García, I. and Lombardero, I. and Ayllón, L. and Rey-Stolle, I. and Algora, C. and Johnson, A. and Davies, J.I. and Tan, K.H. and Loke, W.K. and Wicaksono, S. and Yoon, S.F. and Ochoa-Martínez, E. and Gabás, M., AIP Conference Proceedings: (2016) | Conference

  Advances towards 4J lattice-matched including dilute nitride subcell for terrestrial and space applications
  Ochoa, M. and Garcia, I. and Lombardero, I. and Ayllon, L. and Cifuentes, L. and Rey-Stolle, I. and Algora, C. and Johnson, A.D. and Davies, J.I. and Tan, K.H. and Loke, W.K. and Wicaksono, S. and Yoon, S.F. and Ochoa, E. and Gabas, M. and Thomas, T. and Ekins-Daukes, N.J. and Garcia, H. and Castan, H. and Duenas, S. and Estrade, S. and Peiro, F., Conference Record of the IEEE Photovoltaic Specialists Conference: (2016) | Conference

  Progress on Laser Assisted Nickel Seed Layer Deposition for Front Contact Copper Plating
  Energy Procedia: (5.9.2013) | Conference

  Low cost spray-coating boron diffusion on n-type silicon
  Astorga, E.N. and Martinez, E.O. and Barrado, J.R.R., Proceedings of the 2013 Spanish Conference on Electron Devices, CDE 2013: (2013) | Conference

  Fabrication and characterization of thin c-Si solar cells by low cost methods
  Ochoa-Martínez, E. and Gabás, M. and Vázquez, C. and Hoces, I. and Jimeno, J.C. and Hartiti, B. and Ramos-Barrado, J.R., Conference Record of the IEEE Photovoltaic Specialists Conference: (2012) | Conference

  Highly conductive Ga-doped ZnO thin films deposited onto Si wafers: Interface characterization
  Ochoa, E. and Gabás, M. and Bijani, S. and Palanco, S. and Landa-Cánovas, A.R. and Herrero, P. and Agulló-Rueda, F. and Díaz-Carrasco, P. and Ramos-Barrado, J.R., Conference Record of the IEEE Photovoltaic Specialists Conference: (2012) | Conference

  Emitter diffusion method for extremely thin silicon wafers
  Ochoa-Martínez, E. and Merchán, D. and Romero, R. and Gabás, M. and Martínez, L. and Martín, F. and Leinen, D. and Ramos-Barrado, J.R. and Vázquez, C. and Hartiti, B., Proceedings of the 8th Spanish Conference on Electron Devices, CDE'2011: (2011) | Conference

• Research projects

  Test
  Status: Completed

  Start	02.10.2025
  End	31.12.2025
  Funding	Unifr

  Low-cost and Large-Area Perovskite-Silicon Solar Tandem Cells
  Status: Completed

  Start	01.05.2019
  End	30.04.2021
  Funding	Europe  Open project sheet