Alejandro Goñi

Alejandro Goñi

Institut de Ciència de Materials de Barcelona

Engineering Sciences

I graduated in physics in 1985 at the Balseiro Institute, Argentina. In 1989 I finished my PhD at the Max-Planck Institute FKF in Stuttgart with Prof. M. Cardona. It followed a two-year postdoc at AT&T Bell Labs in Murray Hill, USA, and back at MPI-FKF Stuttgart for three years. In 1996 I moved to the Technical University of Berlin for an appointment as Research & Teaching Associate, where in 1998 I completed my Habilitation. In 1999 I received the Karl-Scheel Prize from the Physical Society of Berlin for my contributions to the field of high-pressure semiconductor physics. In November 2003, I joined ICMAB-CSIC as ICREA Research Prof., co-founding the Optoelectronic Properties of Nanostructured Materials (NANOPTO) group. At ICMAB I created a facility for optical spectroscopy with micro/nanometer-scale resolution and set up a lab for high-pressure physics.

Research interests

I am an experimental physicist with broad interests and experience in solid-state physics, optical spectroscopy (Raman scattering, photoluminescence, etc.), nanoscience and technology, energy and low-dimensional materials, and high-pressure techniques. Basically, I use light as a probe of physical properties of all kinds of molecular, organic and/or inorganic nanomaterials, looking for new behaviors or phenomena that arise as a direct consequence of the reduced dimensionality and/or size of the system under study. Although I perform basic research, I always have a clear application in mind, such as improving the performance of optoelectronic devices, enhancing thermoelectric and/or photovoltaic properties, enhancing solar energy harvesting, etc. I am currently leading group activities on high pressure physics, metal-halide perovskites, plasmonic hot-electron emitters and the development of novel light-souce concepts.

Selected publications

– Gibert-Roca M, Casademont-Viñas M, Liu Q, Vandewal K, Goñi AR & Campoy-Quiles M 2024, ‘RAINBOW organic solar cells: Implementing spectral splitting in lateral multi-junction architectures‘, Adv. Mater. 36, 2212226/1-16.
– Casademont-Viñas M, Capolat D, Quesada-Ramírez A, Reinfelds M, Trimmel G, Sanviti M, Martin J, Goñi AR, Kirchartz T & Campoy-Quiles M 2024, ‘Combinatorial screening of wide band-gap organic solar cell materials with open-circuit voltage between 1.1 and 1.4 V‘, J. Mater. Chem. A, 12, 16716-16728.
– Torimtubun AAA, Alonso Navarro MJ, Quesada-Ramírez A, Rodríguez-Martínez X, Segura JL, Goñi AR & Campoy-Quiles M 2024,’High-Throughput Screening of Low-Bandgap Organic Semiconductors for Photovoltaic Applications: In the Search of Correlations‘, Sol. RRL, 2400213/1-13.
disorder in metal halide perovskites‘, Asian J. Phys. 33, 29-38.
– Xu K, Martínez Armesto L, Svetlík J, Sierra JF, Marinova V, Dimitrov D, Goñi AR, Krysztofik A, Graczykowski B, Rurali R, Valenzuela SO, & Reparaz JS, ‘Unravelling the Origin of Thermal Anisotropy in PdSe2, 2D Mater., 11, 045006/1-8.
– Radi M, Purkait T, Tchitchekova DS, Goñi AR, Markowski R, Bodin C, Courrèges C, Dedryvère R, & Ponrouch A 2024, ‘A Comprehensive Study on the Parameters Affecting Magnesium Plating/Stripping Kinetics in Rechargeable Mg Batteries‘, Adv. Energy Mater, 2401587/1-11.

Selected research activities

Plenary talk at the 109th Annual Meeting of the Argentine Physical Society (AFA2024), San Luis, Argentina, September 2024. From the Metal Halide Perovskite Playground: The Physics of the Temperature Dependence of the Fundamental Gap.