Plasmonic scattering imaging of single Cu2-xSe nanoparticle for Hg2+ detection

The impact of Ni and Zn doping on the thermal durability and thermoelectric variables of pristine CuSe nanoparticles

“…42,43 The XPS profiles of Se 2d for all samples exhibit two photoelectron bands with binding energy values of 54.2 eV and 55.0 eV, designated as Se 2d 5/2 and Se 2d 3/2 , respectively, known as standard peaks of Se. 2–42,44 The identical patterns of both of the Cu 2p peaks and Se 3d peaks for each nanoparticle indicate the existence of CuSe.…”

“…8–10 Copper selenides comprise a varied subgroup of p-type semiconductors that exist in a wide variety of stoichiometric phases, such as CuSe, 11 Cu 2 Se, CuSe 2 , 12 Cu 3 Se 2 , 13 Cu 5 Se 4 , 14 and Cu 7 Se 4 , 15 as well as non-stoichiometric forms of Cu 2− x Se (2.00 ≥ 2 − x ≥ 1.72). 16…”

“…[8][9][10] Copper selenides comprise a varied subgroup of p-type semiconductors that exist in a wide variety of stoichiometric phases, such as CuSe, 11 Cu 2 Se, CuSe 2 , 12 Cu 3 Se 2 , 13 Cu 5 Se 4 , 14 and Cu 7 Se 4 , 15 as well as non-stoichiometric forms of Cu 2Àx Se (2.00 Z 2 À x Z 1.72). 16 The importance of single-phase CuSe nanoparticles lies in their unique properties and potential applications, such as optoelectronic devices, energy harvesting and waste heat recovery, catalysis, photothermal therapy, etc. 9,17,18 Metal doping in binary CuSe semiconductors plays a crucial role in enhancing their properties, such as ability to tune bandgap, control carrier concentration, enhance electrical conductivity, tailor optical properties, and improve stability.…”