Control of thermal emission for thermophotovoltaic systems Daniela De Luca, Antonio Caldarelli, Eliana Gaudino, Umar Farooq, Marilena Musto, Emiliano Di Gennaro and Roberto Russo EPJ Web Conf., 266 (2022) 03016 Published online: 13 October 2022 DOI: 10.1051/epjconf/202226603016