In this episode, we have the privilege to speak with Dr. Henri, a leading scientist in the field of Thermophotovoltaics (TPVs). TPVs, which convert infrared wavelength light to electricity, are recognized as potential game-changers for energy storage and conversion. They are ideally suited for higher temperature heat sources, surpassing the operational ranges of today's commonly used turbines in electricity production.

The highlight of our conversation is the significant progress made in TPV efficiency. Dr. Henri's team has successfully fabricated and measured TPV cells with efficiencies exceeding 40%, a major leap from the previous highest record of 32%. These groundbreaking TPV cells are two-junction devices composed of III-V materials optimized for emitter temperatures ranging from 1,900–2,400 °C.

Our guest also introduces us to th ...