Efrain Ochoa Martinez

efrain.ochoamartinez@unifr.ch
+41 26 300 7335
https://orcid.org/0000-0002-5565-0954

Akademische Rankings von Universitäten, ORCiD, Forschungsinformationssystem (SIR)

Wissenschaftliche_r Mitarbeiter_in
Dienststelle für Forschungsförderung

BRG 01 bu. 5.06
Av. de Beauregard 1
1700 Fribourg
Dienstag: Morgen und Nachmittag

BRG 01, 5.06

+41 26 300 7335

Forschung und Publikationen

Forschung und Veröffentlichungen

31 Publikationen

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

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

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

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

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) | Artikel

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

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

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

Get tougher
Nature Energy (2021) | Artikel

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

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

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

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

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

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

Carbon‐assisted stable silver nanostructures
(2020) | Artikel

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) | Artikel

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

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

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

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

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

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

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

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) | Konferenz

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) | Konferenz

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

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) | Konferenz

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) | Konferenz

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) | Konferenz

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) | Konferenz
Publications

31 Publikationen

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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

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) | Artikel

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) | Artikel

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

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) | Artikel

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) | Artikel

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) | Artikel

Carbon‐assisted stable silver nanostructures
Thomas Mayer, Bodo Dirk Wilts, Efrain Ochoa Martinez, (2020) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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) | Konferenz

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) | Konferenz

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) | Artikel

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) | Artikel

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) | Artikel

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) | Artikel

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

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) | Konferenz

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) | Konferenz

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) | Konferenz

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) | Konferenz

Forschungsprojekte

Beginn	01.05.2019
Ende	30.04.2021
Finanzierung	Europa Projektblatt öffnen