3 papers
cond-mat.mtrl-sci2026
Production of Upgraded Metallurgical Grade (UMG) silicon for a low-cost high-efficiency and reliable PV technology
José Manuel MÃguez Novoa, Volker Hoffmann, Eduardo Fornies +12
UMG-Si has the potential to reduce the cost of PV technology and to improve its environmental profile. In this contribution, we summarize the extensive work made in the research an…
physics.app-ph2026
Germanium Thermophotovoltaic Devices Achieving 7.3% Efficiency Under High-Temperature Emission by Empirical Calorimetry
A. M. Medrano, E. Lopez, Pablo Garcia-Linares +6
We report the first empirical efficiency measurement of germanium-based thermophotovoltaic devices under high-temperature, high-irradiance conditions using a high view-factor calor…
physics.app-ph2025
Evaluating Power-to-Heat-to-Power Storage Potential in Wind- and Solar-Dominated Energy Markets
Alicia López-Ceballos, Alejandro Datas, Ignacio Antón +2
This study assesses the role of Power-to-Heat-to-Power Storage (PHPS) systems, also known as Carnot batteries, in the national energy system of a wind-dominated (Denmark) and a sol…