[We-P] Material growth, structural properties, and characterization (bulk, nanowires, dots)

[We-P-14] Engineering mid-gap states and non-radiative relaxation dynamics in Fe-doped carbon dot semiconductors for efficient solar-thermal harvesting

〇Jen-Shyang Ni^1,2, C.-Y. Hsu¹ (1. National Kaohsiung University of Science and Technology (Taiwan), 2. Photo-sensitive Material Advanced Research and Technology Center (Taiwan))

We report iron-doped carbon dots (Fe-CDs) in a chitosan framework. Fe 3d states induce broad-spectrum absorption and non-radiative decay. The porous matrix nanoconfines water, lowering vaporization enthalpy. This coupling yields a 2.87 kg m^-² h^-¹ solar-to-vapor rate, and Fe-sites catalyze solar-thermal photo-Fenton reactions.