Semiconductor nanocrystal particles and production methods thereof

A population of a plurality of semiconductor nanocrystal particles,

• wherein the plurality of semiconductor nanocrystal particles comprises a transition metal chalcogenide comprising
• BaZrS3, SrZrS3, CaZrS3, SrTiS3, or BaZr1-xTixS3, wherein x is greater than 0 and less than or equal to 0.5,
• BaZrSe3, SrZrSe3, CaZrSe3, SrTiSe3, or BaZr1-x′Tix′Se3, wherein x′ is greater than 0 and less than or equal to 0.5,
• BaZrTe3, SrZrTe3, CaZrTe3, SrTiTe3, BaTiTe3, or BaZr1-x″Tix″Te3, wherein x″ is greater than 0 and less than or equal to 0.5;
• or
• a combination thereof,
• wherein the plurality of semiconductor nanocrystal particles has an average particle size of greater than or equal to about 0.5 nanometers and less than or equal to about 20 nanometers, and
• wherein the semiconductor nanocrystal particles are configured to emit light at irradiation of light.

A method of producing a semiconductor nanocrystal particle, comprising

• heating a first metal precursor, a second metal precursor, and a chalcogen precursor in the presence of an organic solvent and a ligand compound at a temperature of greater than or equal to about 100° C. and less than or equal to about 400° C.,
• wherein the first metal precursor comprises Ca, Sr, Ba, or a combination thereof,
• the second metal precursor comprises Ti, Zr, Hf, or a combination thereof, and
• the chalcogen precursor comprises S, Se, Te, or a combination thereof, and
• wherein the semiconductor nanocrystal particle comprises a transition metal chalcogenide comprising
• BaZrS3, SrZrS3, CaZrS3, SrTiS3, or BaZr1-xTixS3, wherein x is greater than 0 and less than or equal to 0.5,
• BaZrSe3, SrZrSe3, CaZrSe3, SrTiSe3, or BaZr1-x′Tix′Se3, wherein x′ is greater than 0 and less than or equal to 0.5,
• BaZrTe3, SrZrTe3, CaZrTe3, SrTiTe3, BaTiTe3, or BaZr1-x″Tix″Te3, wherein x″ is greater than 0 and less than or equal to 0.5;
• or
• a combination thereof, and
• the semiconductor nanocrystal particle having a size of less than or equal to about 100 nanometers.