Person | Adolphe Merkle Institute | Université de Fribourg

OCHOA MARTINEZ Efrain

Alumni

Postdoctoral researcher, Smart Energy Materials

Adolphe Merkle Institute Chemin des Verdiers 4 CH-1700 Fribourg Switzerland

Office:	A325
Phone:	+41 26 300 8960
Email:	efrain.ochoamartinez@unifr.ch
	0000-0002-5565-0954

Publications

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)

Excited-State Dynamics of MAPbBr3: Coexistence of Excitons and Free Charge Carriers at Ultrafast Times.

not found (2024)

Host‐guest complexation in wide bandgap perovskite solar cells
Parnian Ferdowsi, Gianluca Bravetti, Moritz C. Schmidt, Efrain Ochoa-Martinez, Shanti Bijani, Aurora Rizzo, Silvia Calello, Ullrich Steiner, Bruno Ehrler, Dominik J. Kubicki, Jovana V. Milić
Solar RRL (2023)

Host-guest complexation in wide bandgap perovskite solar cells

other (2023)

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)

Encapsulated salts in velvet worm slime drive its hardening
Yendry Regina Corrales-Ureña, Fabienne Schwab, Efraín Ochoa-Martínez, Miguel Benavides-Acevedo, José Vega-Baudrit, Reinaldo Pereira, Klaus Rischka, Paul-Ludwig Michael Noeske, Alexander Gogos, Dimitri Vanhecke, Barbara Rothen-Rutishauser, Alke Petri-Fink
Scientific Reports 12 (2022)

Experimental optical and structural properties of ZnS, MgF2, Ta2O5, Al2O3 and TiO2 deposited by electron beam evaporation for optimum anti-reflective coating designs
Brian Li, Mercedes Gabás, Efraín Ochoa-Martínez, Víctor González de la Cruz, Mari Cruz López-Escalante, Laura León-Reina, Rafael Peña, Pilar García-Díaz, Iván García, Carlos Algora
Solar Energy 243 , 454-468 (2022)

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 10 , 081110 (2022)

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)

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
journal-article (2022)

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

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

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

Shaping Perovskites: In Situ Crystallization Mechanism of Rapid Thermally Annealed, Prepatterned Perovskite Films.
Antonio Günzler, Esteban Bermúdez-Ureña, Loreta A. Muscarella, Mario Ochoa, Efraín Ochoa-Martínez, Bruno Ehrler, Michael Saliba, Ullrich Steiner
ACS applied materials & interfaces (2021)

Ultrathin polymeric films for interfacial passivation in wide band-gap perovskite solar cells
Parnian Ferdowsi, Efrain Ochoa-Martinez, Sandy Sanchez Alonso, Ullrich Steiner, Michael Saliba
Scientific Reports (2020)

Carbon-Assisted Stable Silver Nanostructures
S. Narjes Abdollahi, Efraín Ochoa Martínez, Cédric Kilchoer, Geoffroy Kremer, Thomas Jaouen, Philipp Aebi, Tim Hellmann, Thomas Mayer, Yibei Gu, Ulrich B. Wiesner, Ullrich Steiner, Bodo D. Wilts, Ilja Gunkel
Advanced Materials Interfaces (2020)

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

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

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

Evolution of Al:ZnO optical response as a function of doping level
Efraín Ochoa-Martínez, Elena Navarrete-Astorga, José Ramos-Barrado, Mercedes Gabás
Applied Surface Science (2017)

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

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

Modelling of lattice matched dilute nitride 4-junction concentrator solar cells on Ge substrates
Mario Ochoa, Iván García, Iván Lombardero, Luna Ayllón, Ignacio Rey-Stolle, Carlos Algora, Andrew Johnson, J. Iwan Davies, Kian Hua Tan, Wan Khai Loke, Satrio Wicaksono, Soon Fatt Yoon, Efraín Ochoa-Martínez, Mercedes Gabás
AIP Conference Proceedings (2016)

Determination of a refractive index and an extinction coefficient of standard production of CVD-graphene
Efraín Ochoa-Martínez, Mercedes Gabás, Laura Barrutia, Amaia Pesquera, Alba Centeno, Santiago Palanco, Amaia Zurutuza, Carlos Algora
Nanoscale (2015)

Fabrication and characterization of thin silicon solar cells produced by in-line spray coating
Efraín Ochoa-Martínez, Cándido Vázquez, Daniel Solís, Itziar Hoces, Iratxe Freire, Juan Carlos Jimeno, José Ramos-Barrado
RSC Advances (2015)

Optical properties of Si nanowires: Dependence on substrate crystallographic orientation and light polarization
Juan A. Badán, Ricardo E. Marotti, Enrique A. Dalchiele, Daniel Ariosa, Francisco Martín, Dietmar Leinen, Efrain Ochoa, José R. Ramos-Barrado
Journal of Materials Research (2015)

Study of the phosphorus emitter of Cz-Si solar cells obtained by in-line spray coating
Efraín Ochoa-Martínez, Cándido Vázquez, José Ramos-Barrado
Solar Energy (2014)

Progress on Laser Assisted Nickel Seed Layer Deposition for Front Contact Copper Plating
Efraín Ochoa-Martínez, Niklas Wehkamp, José Ramos-Barrado, Jonas Bartsch
Energy Procedia (2013)

Low cost spray-coating boron diffusion on n-type silicon
Elena Navarrete Astorga, Efrain Ochoa Martinez, Jose. R. Ramos Barrado
Proceedings of the 2013 Spanish Conference on Electron Devices, CDE 2013 (2013)

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

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

Emitter diffusion method for extremely thin silicon wafers
E. Ochoa-Martinez, D. Merchan, R. Romero, M. Gabas, L. Martinez, F. Martin, D. Leinen, J. R. Ramos-Barrado, C. Vazquez, B. Hartiti
Proceedings of the 8th Spanish Conference on Electron Devices, CDE'2011 (2011)

Fausse publication Futura

lecture-speech (2008)