CD-FREE COLLOIDAL QUANTUM DOT CAPABLE OF EMITTING VISIBLE FLUORESCENCE, AND METHOD FOR PRODUCING SAME

摘要

A Cd-free colloidal quantum dot which is a core particle that is coated with a shell made from a compound semiconductor and serves as a core for the shell, and emits visible fluorescence upon irradiation with excited light having a wavelength of a near ultraviolet region or a blue region. The colloidal quantum dot is represented by a chemical formula: A (B1_1-x, B2_x) (wherein 0x1), has Zn as a Group-II element in the A site, Te as a Group-VI element in the B1 site, and Se or S as a Group-VI element in the B2 site, and has an average particle diameter of 1 nm or more and 10 nm or less.