RT Journal Article
T1 Wide-bandgap III-V materials for high efficiency air and underwater optical photovoltaic power transmission
A1 Sanmartín, Pablo
A1 Almonacid, Florencia
A1 Ceballos, María A.
A1 García Loureiro, Antonio Jesús
A1 Fernández, Eduardo F.
K1 High-power optical transmission
K1 Photovoltaics
K1 Power converters
K1 Analytical model
K1 III-V materials
K1 Attenuation
AB High-power optical transmission (HPOT) enables the uninterrupted transfer of power in the order of hundreds of watts over several kilometers, freeing power systems from traditional wiring constraints. Its vast versatility of applications ranges from the ocean depths to outer space. In recent years, particular emphasis has been placed on the development of efficient methods to transfer substantial amounts of power from future space-based solar power stations, which intend to generate clean energy 24/7, to Earth. Despite the immense potential of HPOT, further endeavors should be undertaken in order to enhance overall system efficiency, currently hindered below 20%. A contributing factor to this unsatisfactory performance is the state-of-the-art selection of semiconductors that constitute the receivers of the monochromatic light: the optical photovoltaic converters (OPCs). Therefore, this work aims to identify the most suitable semiconductor materials for high power (~100 Wcm 2) and beyond transmissions in terrestrial and underwater environments. In addition, the first analytical model capable of evaluating, predicting and designing OPCs and its electrical characteristics is provided. The results indicate that III-V wide-bandgap semiconductors (≈2.5 eV), such as InGaN and InAlN, could yield significant efficiency improvements in air and, especially, in subaquatic domains with respect to existing GaAs-based devices.
PB Elsevier
SN 0927-0248
YR 2024
FD 2024-12-03
LK https://hdl.handle.net/10347/40861
UL https://hdl.handle.net/10347/40861
LA eng
NO Sanmartín, P., Almonacid, F., Ceballos, M. A., García-Loureiro, A., & Fernández, E. F. (2024). Wide-bandgap III-V materials for high efficiency air and underwater optical photovoltaic power transmission. Solar Energy Materials and Solar Cells, 266, 112662-. https://doi.org/10.1016/j.solmat.2023.112662
NO This work has been partially funded by the project “UltraMicroCPV” (MICINN - Agencia Estatal de Investigación: PID2019-106497RB-I00/AEI/10.13039/501100011033). E. F. Fernández also thanks the Spanish Ministry of Science, Innovation and Universities for the funds received under the “Ramón y Cajal Programme” (RYC-2017-21910).
DS Minerva
RD 29 abr 2026