Cadmium phosphide (Cd3P2) is an inorganicchemical compound. It is a grey or white bluish solid semiconductor material with a bandgap of 0.5 eV.[1] It has applications as a pesticide, material for laser diodes and for high-power-high-frequency electronics.[1]
Synthesis and reactions
Cadmium phosphide can be prepared by the reaction of cadmium with phosphorus:
Over the last decade, interest in cadmium phosphide as a source for fast, near-IR emission has grown due to the development of cadmium phosphide quantum dots. Literature has demonstrated that these quantum dots possess tunable emission between 700 nm to 1500 nm.[4][5] A recent paper investigated the effect of surface passivation on these quantum dots and showed that cadmium phosphide quantum dots may have an intrinsic band-edge relaxation time less than 100 ns.[6]
Safety
Like other metal phosphides, it is acutely toxic when swallowed due to the formation of phosphine gas when it reacts with gastric acid. It is also carcinogen and dangerous for the skin, eyes and other organs in a large part due to cadmium poisoning.
^Trukhan, V. M.; Izotov, A. D.; Shoukavaya, T. V. (2014). "Compounds and solid solutions of the Zn-Cd-P-As system in semiconductor electronics". Inorganic Materials. 50 (9): 868–873. doi:10.1134/S0020168514090143. S2CID94409384.
^Miao, S.; Hickey, S. G.; Rellinghaus, B.; Waurisch, C.; Eychmuller, A. (2010). "Synthesis and Characterization of Cadmium Phosphide Quantum Dots Emitting in the Visible Red to Near-Infrared". Journal of the American Chemical Society. 132 (16): 5613–5615. doi:10.1021/ja9105732. PMID20361738.
^Xie, R.; Zhang, J.; Yang, W.; Peng, X. (2010). "Synthesis of Monodisperse, Highly Emissive, and Size-Tunable Cd3P2 Nanocrystals". Chemistry of Materials. 22 (13): 3820–3822. doi:10.1021/cm1008653.
