The fabrication of titanium nitride (TiN) nano bars obtained using a two-step procedure based on a wet chemical route synthesis of TiO 2 nanowires and their subsequent high-temperature annealing in ammonia flow are presented. Electromagnetic simulations of the resulting TiN nano bars reveal a rich set of optical resonances featuring transverse, longitudinal, and mixed transverse–longitudinal plasmonic modes that cover energies from the visible to MIR region.
S. Rej, et al. Colloidal titanium nitride nanobars for broadband inexpensive plasmonics and photochemistry from visible to mid-IR wavelengths. Nano Energy, 104, 107989, (2022).