CURRICULUM  VITAE

EDUCATION

• Ph.D. in Physics -  The University of Barcelona, Spain (11/2014)

• Master in Physics -  The University of Havana, Cuba (01/2008)

• Bachelor in Physics - The University of Havana, Cuba (07/2006)

KEY STRENGTHS 

• Optoelectronics, Photonics and Spectroscopy Expertise

• Light Emitting Devices, Photodetectors

• Hands-On Lab Experience 

• Material and Device Characterization Techniques

• Opto-Electrical Measurements at Nanoscale Level

• Combined Theoretical and Experimental Backgrounds

• Outstanding Work Relationships

• Analytical and Interpersonal Skills

• Solid Technical and Problem-Solving Skills 

• Strategic Vision and Tactical

• Project Management

CAREER HIGHLIGHTS

• Experimental demonstration of telecom single-photon emitters in silicon.

• Demonstration of room-temperature short-wavelength infrared Si photodetector.

• Demonstration of room-temperature intermediate band-mediated infrared optoelectronic photoresponse in single hyperdoped Si nanowires.

• Experimental demonstration of erbium-doped light-emitting slot waveguides monolithically integrated into a silicon photonic chip.

• Identification of the most efficient electroluminescence excitation mechanism of trivalent rare earth ions embedded within Si-based insulating matrices.  

• Experimental and theoretical demonstration of an optimum gate stack for boosting the electroluminescence efficiency and device operation lifetime of rare earth- and Si-based light-emitting devices in both visible and near-infrared spectral ranges.

• Assessment of silicon-rich nitride-based materials platform for general lighting proposes.  

• Effect of the different CMOS-compatible fabrication techniques on the electrical and electroluminescence mechanisms of rare earth-doped and Si-based light emitting devices. 

• Influence of the excess of Si nanostructures and rare-earth ions on the electrical conduction mechanisms, electroluminescence properties, and electroluminescence efficiency of light emitting devices. 

• Identification and correlation between the electrical conduction and electroluminescence mechanisms of rare-earth ions and Si nanostructures in different host environments. 

• Influence of combining silicon nitride (N) and silicon oxide (O) thin-film layers in the form of NO or ONO on the electrical and electroluminescence properties, as well as electroluminescence efficiency of the light emitting devices.

PROFESSIONAL EXPERIENCE

University of Barcelona (UB) ▪ Barcelona, Spain 

Researcher ▪ Ph.D. research and Thesis                          Sept 2010 – Nov 2014

• Knowledge of electrical conduction mechanisms and photo- and electroluminescence processes of semiconductor devices (MOS capacitors and MOS-Field Effect transistors) and Si-based insulating materials.

• Advanced electrical and electroluminescence measurements of nanoscale devices.

• Time-resolved photo- and electroluminescence experiments.

• Electrical, µ-photoluminescence and electroluminescence measurements at cryogenic, room and high temperatures.

• Characterization of complex Si photonic structures (Ring resonators, Slot waveguides, Fabry-Perot cavities, etc.)

• Radiometric and photometric characterization of light emitting devices.

• Development of smart-solid state lighting systems.

• Attendance to technical meetings related to the EU and National projects and scientific congresses. 

• Scientific writing of reports.

• Laboratory management and project management.

Institute of Ion Beam Physics and Materials Research (HZDR) ▪ Dresden, Germany

Visiting researcher ▪ Research Stay                               Feb 2012 - May 2012

• Design and fabrication of rare earth-implanted MOS light emitting devices. 

• Stopping and Range of Ions in Matter (SRIM) simulations.

• Current-voltage, capacitance-voltage, charge to breakdown measurements.

• Photoluminescence experiments.

• Electroluminescence characterization of novel rare-earth implanted MOS structures.

• Scientific writing of reports.

Institute of Technology and Materials Science (IMRE) ▪ Havana, Cuba

Associate Researcher                                              Sept 2006 - Jun 2010

• Development of an experimental setup based on m-lines method for characterizing planar-optical waveguides. 

• Fabrication of planar optical waveguides by ion exchange technique and structural characterization by Rutherford Backscattering Spectroscopy (RBS).

• Prism coupling and end-coupling techniques for characterizing optical waveguides.   

• Ellipsometry measurements of thin-film layers.

• Development of fully automated experiments by using the LabView suite.

• Computational algorithm to study fractal structures: Calculation of the critical exponent.

• Development of a fully automated experimental setup for measuring the speed of sound in air.

• Attendance at scientific congresses. 

• Scientific writing of reports.

University of Barcelona (UB) ▪ Barcelona, Spain  

Visiting Researcher ▪ Research stay                                Jun 2009 - Dic 2009                                

• Electrical and electroluminescence characterization of erbium-doped silicon-rich oxide light emitting devices.

• Correlation between electrical conduction mechanisms and electroluminescence properties of erbium-doped silicon-rich oxide light emitting devices.

• SIMS, XPS and EFTEM techniques applied to the characterization of rare-earth-doped and Si-based insulating materials.  

• Development of fully automated experiments by using the MathLab suite.

• Attendance to technical meetings related to the EU and National projects and scientific congresses. 

• Scientific writing of reports.

University of Barcelona (UB) ▪ Barcelona, Spain

Visiting Researcher ▪ Research stay                                 May 2008 - Nov 2008

• Development of electro-optical experimental setup for characterizing light-emitting devices.

• Development of Photoluminescence experimental setup. 

• Design and electro-optical characterization of MOS light-emitting capacitors and transistors. 

• Scientific writing of reports.

RESEARCH PROJECTS

1. European Union Project: Photonics Electronics Functional Integration on CMOS (HELIOS). Ref: FP7-ICT 224312. Duration: 2008-2012.

2. Spanish National Project: Iluminación de Estado Sólido Innovadora e Inteligente e Interconexiones Ópticas a 1.5 micras con Fotónica de Silicio basada en Tecnología CMOS (LEOMIS). Ref: TEC2012-38540-C02-01. Duration: 2013-2015.

3. Spanish National Project: Micro-nanotecnologies i Nanoscòpies per Dispositius Electrònics i Fotònics (MIND). Ref: 2009SGR35. Duration: 2009-2013.

4. Spanish National Project: Capacidades Metal-Oxide-Semiconductor (MOS) con Nanocristales de Silicio Embebidos en Multi-capas Activas Basadas en Óxido y Nitruro de Silicio (MNOSLEDs). Ref: GICSERV-NGG-260. Duration: 2011-2012.

5. Spanish National Project: Interconexión Óptica Modulable a GHz y Láser a Micro-disco Basados en Tecnología CMOS (LASSI). Ref: TEC2009-08359. Duration: 2010-2012. 

6. Spanish National Project: Integrated Research Action between Spain and Italy (BOE135). Ref: HI2008-0054. Duration: 2008-2010.

7. German National Project: Non-equilibrium thermal processing for the hyperdoping of Si nanowires. (Alexander von Humboldt Foundation). Duration: 2016-2019.

8. German National Project: Room-temperature broadband MIR photodetector based on Si:Te for wafer-scale integration. (Deutsche Forschungsgemeinschaft, DFG). Duration: 2021-2024.

9. German National Project: Wafer-scale CMOS technology for room-temperature extended short-wave infrared GeSn photodetectors based on ion implantation and flash-lamp annealing. (Helmholtz Association, 2023 HI-ACTS Use Case Initiatives). Duration: 6 Months.

10. German National Project: Ultradoped GeSn-based plasmonic antennas and GeSn/Si plasmon-enhanced heterojunction photoemission infrared photodetectors on the Si platform. (Deutsche Forschungsgemeinschaft, DFG). Duration: 2023-2026.

AWARDS & GRANTS

• June 2018 Award: Young Scientist Award for the best oral presentation at the XII-th International Conference on Ion Implantation and Other Applications of Ions and Electrons ION 2018. Kazimierz Dolny, Poland

• March 2016 Scholarship: Humboldt Fellowship for Postdoctoral Researchers

• May 2013 Award: Student award in recognition of the best poster presented during EMRS 2013 Spring Meeting May 27-31  (European Materials Research Society), Symposium J

• Feb 2011 Grant: Research stay at the Institute of Ion Beam Physics and Materials Research, Helmholtz-Zentrum Dresden-Rossendorf, Dresden, Germany through Spanish Government: EEBB-I-2012-04552

• Sep 2010 Scholarship: at the University of Barcelona through Spanish Government "Formación Personal Investigador" BES-2010-030479

• May 2009 Scholarship: at the University of Barcelona through European project HELIOS: FP7-ICT 224312

• May 2008 Scholarship: at the University of Barcelona through Ibero-American scientific network  (ALFA BioSenIntg): II-0486-FCFA-FCFA-FCD-FI

• Jun 2007 Award: “Alma Mater” Prize for the Rector of the University of Havana during 2006-2007 academic course.

• Jun 2007 Award: Selected more outstanding professor in the professional overcoming at the Physics Faculty of the University of Havana during the 2006-2007 academic course.

• Jun 2006 Award: Prize of the Rector for the more outstanding graduate in the research area at the Physics Faculty and the University of Havana during the 2005-2006 academic course.

• May 2006 Award: Prize of the Cuban Physics Society for the best research work presented in the XXII Physics Students Event at the University of Havana.

• Aug 2005 Award: Winner of first place in the “International Conference for Physics Students” celebrated at the University of Coimbra, Portugal for the celebration of the International Year of Physics.

• May 2005 Award: Prize of the Rector for the originality and transcendence of work at the University of Havana during the 2004-2005 academic course.

• May 2004 Award: Prize of the Physics Cuban Society for the best research work presented in the XX Physics Students Event at the University of Havana.