Thermoradiative Diodes Using Black Phosphorus van der Waals Materials

Abstract

ABSTRACT The high radiative efficiencies and strong absorption coefficients of van der Waals materials position them well for optoelectronic power generation via radiative exchange. These materials have been investigated for use in solar cells, however, their use in thermoradiative and thermophotovoltaic applications in the mid‐infrared remains unexplored. We fabricate a black phosphorus ()/molybdenum disulfide () van der Waals heterojunction diode and use it in both thermoradiative and thermophotovoltaic operation modes. Open circuit voltage and short circuit current measurements taken as a function of temperature difference between the device and its environment, show th..