METHOD AND APPARATUS FOR PRODUCING SEMICONDUCTIVE ULTRAFINE PARTICLE

摘要

PROBLEM TO BE SOLVED: To provide a method for producing semiconductive ultrafine particles which are narrow in particle size distribution and excellent in light absorption and emission properties. SOLUTION: In the method, the first substance containing a positive element the electronegativity of which is 2.0 or below and the second substance of a chalcogen compound expressed by formula (1) of M1M2E (wherein M1 and M2 are elements of the group I in the periodic table or onium residues and can be different from each other; E is an element of the group XVI of the periodic table) are used as a raw material for the semiconductor, both substances are brought into contact in the liquid phase in a tubular passage reactor to make chalcogen compound semiconductor crystals grow, and the Reynolds number if the liquid phase is at least 1.