Semiconductor nanocrystal particles and devices including the same

A semiconductor nanocrystal particle, comprising

• sulfur, indium, zinc, and phosphorus,
• wherein a mole ratio of a total amount of the zinc in the semiconductor nanocrystal particle relative to a total amount of the indium in the semiconductor nanocrystal particle is greater than or equal to about 25:1,
• the semiconductor nanocrystal particle comprises
• a core, the core comprising a first semiconductor material comprising indium, zinc, and phosphorus, and
• a shell disposed on the core, the shell comprising a second semiconductor material comprising zinc and sulfur, and
• the semiconductor nanocrystal particle emits blue light having a maximum peak emission at a wavelength of from 440 nanometers to 470 nanometers, and the semiconductor nanocrystal particle has quantum efficiency of greater than or equal to about 45%.