RT Journal Article
T1 Laser power converter architectures based on 3C-SiC with efficiencies >80%
A1 Fernández Lozano, Javier
A1 Seoane Iglesias, Natalia
A1 Comesaña Figueroa, Enrique
A1 Almonacid, Florencia
A1 Fernández, Eduardo
A1 García Loureiro, Antonio Jesús
K1 3C-SiC
K1 High power densities
K1 Laser power converters
K1 Vertical structures
K1 Wireless power transfer
AB High power laser transmission technology is based on energy transfer through a monochromatic laser onto a photovoltaic receiver avoiding the limitations of conventional wiring. Current technology, headed by GaAs-based devices, faces two limitations: the intrinsic entropic losses and the degradation at high input power densities due to ohmic losses. Two novel laser power converters focused on overcoming these limitations are proposed. 3C-SiC is used as base material because of its high bandgap (2.36 eV) and its excellent crystallographic properties in order to reduce the entropic losses. Also, the current decreases due to the inherent flux reduction of high energy photons. To minimize ohmic losses, a recently proposed vertical architecture is explored, which can significantly reduce series resistance around two orders of magnitude (≈10−5 Ω cm2). Furthermore, 3C-SiC is also implemented in a conventional horizontal architecture to show the advantage of increasing the energy gap to reduce the ohmic losses. The two laser power converters obtain efficiencies above the state-of-the-art (87.4% at 3000 W cm−2 for the vertical architecture and 81.1% at 100 W cm−2 for the horizontal architecture) Taking this into account, the new devices open a new route for ultrahigh efficiency remote powered systems
PB Wiley
SN 2367-198X
YR 2022
FD 2022-04-09
LK https://hdl.handle.net/10347/45398
UL https://hdl.handle.net/10347/45398
LA eng
NO Lozano, J.F., Seoane, N., Comesaña, E., Almonacid, F., Fernández, E.F. and García-Loureiro, A. (2022), Laser Power Converter Architectures Based on 3C-SiC with Efficiencies >80%. Sol. RRL, 6: 2101077. https://doi.org/10.1002/solr.202101077
NO This work was supported by the Spanish Government, Xunta de Galicia, Junta de Andalucía, and FEDER funds (grant nos. PID2019-106497RB-I00, P18- RT-1595, PID2019-104834GB-I00, ED431F 2020/008, GRC 2014/008, RYC-2017-23312, and RYC-2017-21910)
DS Minerva
RD 26 abr 2026