Photoexcitation and charge carrier thermalization inside semiconductor photocatalysts are two important steps in solar fuel production. Here, photoexcitation and charge carrier thermalization in a silicon wafer are for the first time probed by a novel, yet simple and user-friendly Attenuated Total Reflectance Infrared spectroscopy (ATR-IR) system.
Karabudak, E., Yüce, E., Schlautmann, S., Hansen, O., Mul, G., & Gardeniers, H. J. G. E. . (2012). On the pathway of photoexcited electrons: probing photon-to-electron and photon-to-phonon conversions in silicon by ATR-IR. Physical Chemistry Chemical Physics, 14(31), 10882-10885. https://doi.org/10.1039/c2cp41831b