https://doi.org/10.1051/epjconf/202328709031
Selective Emitter for Solar Thermophotovoltaic Applications
1 Industrial Engineering Department, University of Napoli "Federico II", 80126 Napoli, Italy
2 National Research Council of Italy, Napoli Unit, Institute of Applied Sciences and Intelligent Systems, 80131 Napoli, Italy
3 Electrical & Computer Engineering Department, Purdue University, 47907 West Lafayette (IN), USA
4 Physics Department, University of Napoli "Federico II", 80126 Napoli, Italy
* Corresponding author: antonio.caldarelli@na.isasi.cnr.it
Published online: 18 October 2023
Selective Emitters (SEs) are the main components of solar thermophotovoltaic (STPV) systems; they act as intermediate thermal radiation emitters to shape the incident solar spectrum to match the wavelengths useful for the PV cell. In this work, we present the design, optimisation, fabrication, and characterisation of an SE based on a multilayer design made of SiNx, SiO2, and TiO2 layers. The SE is optimised to work with PV cells based on III-V semiconductors, such as GaSb, InGaAs, and InGaAsS, the bests suitable for SPTV applications. The fabricated SE shows an emitter efficiency (ηSE) of 50% if matched with a PV cell with an energy bandgap of 0.63 eV.
© The Authors, published by EDP Sciences, 2023
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
