METHOD FOR PREPARING ORGANIC-INORGANIC COMPOSITE MICROCRYSTAL

摘要

A method for preparing a fine inorganic particle−organic microcrystal composite microcrystal which comprises injecting an organic material having a &pgr;−conjugated bond dissolved in a solvent being soluble in water into an aqueous dispersion containing inorganic fine particles having a particle size of 50 nm or less selected from among fine metal particles, fine semiconductor particles, fine inorganic phosphor particles and fine inorganic luminous material particles dispersed therein, to co−precipitate an above inorganic fine particle forming a core and a microcrystal of the above organic material forming a shell, thereby forming a microcrystal shell of the organic material on the surface of the core of the fine inorganic particle having a particle size of 50 nm or less; and a method for preparing a composite microcrystal comprising a fine inorganic particle and a microcrystal of a &pgr;−conjugated polymer which comprises effecting a solid polymerization of the above organic microcrystal.