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Javier Castillo Seoane

javier.castilloseoane@epfl.ch +41 21 693 19 20

Nationality: Spanish

Dr. Castillo-Seoane is a physicist and materials engineer. He obtained his Ph.D. in Science and Technology of New Materials in 2024 at the Institute of Materials Science of Seville (CSIC-Univ. Seville), Spain. Within the Nanotechnology on Surfaces and Plasma group, his research focused on the nanostructuration of semiconductor materials via vacuum and plasma techniques for applications in energy, optoelectronics and sensors. Currently, he is a postdoctoral researcher at the École Polytechnique Fédérale de Lausanne - EPFL (Switzerland), in the Laboratory of Semiconductor Materials, focused on the development of Earth-abundant semiconductors for photovoltaics.

Education

Ph.D.

| New Materials Science and Technology

2019 – 2024 Institute of Materials Science of Seville (CSIC - Univ. Seville)
Directed by Dr Juan Ramón Sánchez Valencia / Dr Ana Borrás Martos

M.Sc.

| New Materials Science and Technology

2018 – 2019 University of Seville (Spain)

B.Sc.

| Physics

2013 – 2018 University of Seville (Spain)

B.E.

| Materials Engineering

2013 – 2018 University of Seville (Spain)

Professionals experiences

Lecturer

Department of Applied Physics I / High Polytechnic School
Courses:
- Energetic Engineering, Heat Transfer and Fluids (Theory + Laboratory / 4 ECTS)
- Energetic Engineering and Heat Transfer (Theory + Laboratory / 10 ECTS)
- Master Thesis. Student: Mr Daniel Zapata. Title: “Interface engineering of metal halide perovskite nanostructured devices by plasma technology”

2024–2025

University of Seville (US)

Lecturer

Department of Condensed Matter Physics / Faculty of Physics
Courses:
- Experimental Techniques in Solid State Physics (Laboratory / 1.5 ECTS)
- Physical Fundamentals of Biology (Laboratory / 1.6 ECTS) 

2024–2024

University of Seville (US)

Predoctoral Researcher

Thesis title: “Low dimensional optoelectronic devices enabled by vacuum and plasma technologies”
Group: Nanotechnology on Surfaces and Plasma
Supervisors: Dr. Juan Ramón Sánchez Valencia and Dr. Ana Borrás Martos
Grade: Excellent Cum Laude with International Doctorate mention

2019–2024

Institute of Materials Science of Seville (ICMS). Mixed center of Spanish National Research Council (CSIC) - University of Seville (US)

Degree Internship

Department: Condensed Matter Physics
Group: Mechanical properties of Solids Group

2018–2018

Institute of Materials Science of Seville (ICMS). Mixed center of Spanish National Research Council (CSIC) and University of Seville (US)

Selected publications

Multidimensional Nanoarchitectures for Improved Indoor Light Harvesting in Dye-Sensitized Solar Cells

J. Castillo-Seoane, L. Contreras-Bernal,* A. J. Riquelme, S. Fauvel, Y. Kervella, J. Gil-Rostra, G. Lozano, Á. Barranco, R. Demadrille, J. R. Sánchez-Valencia, A. Borrás
Published in Materials Today Energy. 2025. 49, 101851 in

Highly Stable Photoluminescence in Vacuum-Processed Halide Perovskite Core–Shell 1D Nanostructures

J. Castillo-Seoane, L. Contreras-Bernal, T. C. Rojas, J. P. Espinós, A. Castro, J. P. Correa-Baena, A. Barranco, J. R. Sanchez-Valencia, A. Borrás
Published in Adv. Func. Mat. 2024, 2403763 in

Photoelectrochemical water splitting with ITO/WO3/BiVO4/CoPi multishell nanotubes enabled by a vacuum and plasma soft-template synthesis

J. Gil-Rostra, J. Castillo-Seoane, Q. Guo, A. B. Jorge Sobrido, A. Gonzalez-Elipe, A. Borrás
Published in ACS Appl. Mater. Interfaces, 2023, 15, 7, 9250 – 9262 in

Ultrathin plasma polymer passivation of perovskite solar cells for improved stability and reproducibility

J. M. Obrero-Perez, L. Contreras-Bernal, F. Nuñez-Galvez, J. Castillo-Seoane, K. Valadez-Villalobos, F. J. Aparicio, J.A. Anta, A. Borras, J.R. Sánchez-Valencia, Á. Barranco
Published in Adv. Ener. Mat. 2022, 2200812 in

Highly anisotropic organometal halide perovskite nanowalls grown by Glancing Angle Deposition

J. Castillo-Seoane, L. Contreras-Bernal, J. M. Obrero-Pérez, X. García-Casas, F. Lorenzo-Lázaro, F. Javier Aparicio, M. C. López-Santos, T. C. Rojas, J. A. Anta, A. Borrás, Á. Barranco, J. R. Sánchez-Valencia
Published in Adv. Mater. 2022, 34, 2107739 in

Plasma engineering of microstructured piezo – Triboelectric hybrid nanogenerators for wide bandwidth vibration energy harvesting

X. García-Casas, A. Ghaffarinejad,* F. J. Aparicio, J. Castillo-Seoane, C. López-Santos, J. P. Espinós, J. Cotrino, J. R. Sánchez-Valencia, Á. Barranco, A. Borrás
Published in Nano Ener. 2022, 91, 106673 in

One-reactor vacuum and plasma synthesis of transparent conducting oxide nanotubes and nanotrees: from single wire conductivity to ultra-broadband perfect absorbers in the NIR

J. Castillo-Seoane, J. Gil-Rostra, V. López-Flores, G. Lozano, F. J. Ferrer, J. P. Espinós, K. Ostrikov, F. Yubero, A. R. González-Elipe, Á. Barranco, J. R. Sánchez-Valencia, A. Borrás
Published in Nanoscale 2021, 13, 13882 in

Plasma-Enabled Amorphous TiO2 Nanotubes as Hydrophobic Support for Molecular Sensing by SERS

A. N. Filippin , J. Castillo-Seoane , M. C. López-Santos, C. T. Rojas, K. Ostrikov, Á. Barranco, J. R. Sánchez-Valencia, A. Borrás
Published in ACS Applied Materials and Interfaces 2020, 12, 45, 50721–50733 in