Alejandro R. Goñi

Alejandro R. Goñi

Institut de Ciència de Materials de Barcelona

Engineering Sciences

I was born in Córdoba, Argentina, and graduated in physics in 1985 from Balseiro Institute, Argentina. In 1986 I moved to Germany for my PhD at the Max-Planck Institute FKF in Stuttgart with Prof. M. Cardona, which I finished in 1989. It followed a two-years postdoc at AT&T Bell Labs in Murray Hill, USA, and back to the MPI Stuttgart for three years. In 1996 I switched to the Technical University of Berlin for an appointment as Research & Teaching Associate. In 1999 I was awarded the Karl-Scheel Prize of the Physical Society of Berlin for my contributions to the field of high-pressure semiconductor physics. I joined the Optoelectronic Properties of Nanostructured Materials group at ICMAB-CSIC in November 2003 as ICREA. I created a facility for optical spectroscopy with micro and nanometer-scale resolution and set up a laboratory for high-pressure physics. I am leading group activities on high pressure, hybrid perovskites and plasmon-assisted thermionic emitters.

Research interests

I am an experimental physicist with broad interests and expertise in solid-state physics, optical spectroscopy (Raman scattering, photoluminescence, etc.), nano-science and technology, energy materials, the physics of low-dimensional materials (superlattices, quantum wires and dots), highly correlated electron systems, and high-pressure techniques. Essentially, I use light as a probe of the physical properties of all kinds of organic and/or inorganic molecular and nano-materials, searching for new behaviors or phenomena that emerge as a direct consequence of the reduced dimensionality and/or size of the material system under study. Although I am pursuing basic research, almost all my lines of investigation have a clear application in mind, such as to improve the performance of optoelectronic devices based on nano-materials, enhance thermoelectric and/or photovoltaic properties, boost solar energy conversion efficiency, develop ultra-sensitive spectroscopic techniques, etc.

Selected publications

– Gómez A, Wang Q, Goñi AR, Campoy-Quiles M & Abate A 2019, ‘Ferroelectricity-free lead halide perovskites‘, Energy Environ. Sci. 12, 2537-2547.

– Francisco-López A, Charles B, Weber OJ, Alonso MI, Garriga M, Campoy-Quiles M, Weller MT & Goñi AR 2019, ‘Equal Footing of Thermal Expansion and Electron-Phonon Interaction in the Temperature Dependence of Lead Halide Perovskite Band Gaps’, J. Phys. Chem. Lett. 10, 2971-2977.

– Alonso MI, Charles B, Francisco-López A, Garriga M, Weller MT & Goñi AR 2019, ‘Spectroscopic ellipsometry study of FAxMA1-xPbI3 Hybrid Perovskite Single Crystals, J. Vac. Sci. Technol. B. 37, 062901/1-7.

– Francisco-López A, Han B, Lagarde D, Marie X, Urbaszek B, Robert C & Goñi AR 2019, ‘On the Impact of the Stress Situation on the Optical Properties of WSe2 Monolayers under High Pressure‘, Pap. Phys. 11110005/1-10.

Selected research activities

– Principal Investigator of the research project Plasmon-resonance driven thermionic emitters for improved solar energy harvesting (PLASMIONICO), a Marie Sklodowska-Curie Individual Fellowship (Dr. Luis. A. Pérez), Grant No. H2020-MSCA-IF-2018-839402, September 2019 – August 2021.

– Co-Principal Investigator of project Ref. PGC2018-095411-B-100, Efficient harvesting of visible and infrared solar energy through rainbow architectures (RAINBOW), from the Ministerio de Ciencia, Innovación y Universidades of Spain, January 2019 – December 2021.

– Since April 2019, Coordinator of the strategic Research Line RL1: Sustainable Energy Conversion & Storage Systems of the Institute of Materials Science of Barcelona (ICMAB-CSIC) and member of ICMAB’s Scientific Executive Board.