Semiconductor nanoparticle-including silver, indium, galium, and sulfur, color conversion panel including the same, and electronic device including the same

A semiconductor nanoparticle, comprising:

• silver, indium, gallium, and a chalcogen element,
• wherein the chalcogen element comprises sulfur,
• wherein the semiconductor nanoparticle emits a first light having a full width at half maximum of greater than or equal to about 5 nanometers to less than or equal to about 70 nanometers, and a maximum emission wavelength of greater than or equal to about 500 nanometers to less than or equal to about 600 nanometers,
• wherein the semiconductor nanoparticle has a quantum yield of greater than or equal to about 50%, and
• wherein in the semiconductor nanoparticle, a mole ratio of gallium to sulfur is greater than or equal to about 0.1:10.3:1 to less than or equal to about 1:1, and a mole ratio of indium to sulfur is less than or equal to 0.13:1,
• wherein the semiconductor nanoparticle has a charge balance value as defined by Equation 1A that is greater than or equal to about 0.8 to less than or equal to about 1.5:
• charge balance value={[Ag]+3([In]+[Ga])}/2[S] Equation 1A
• wherein, in Equation 1A,
• [Ag], [In], [Ga], and [S] are molar amounts of the silver, indium, gallium, and sulfur in the semiconductor nanoparticle, respectively.