Patent ID: 7378151
Filing Date: 2008-05-27
Classification: B82Y,C01P,C09C,C09K,Y10S,Y10T

Abstract:
1. A water-soluble semiconductor nanoparticle consisting of: a core made of one chemical compound; a first layer which contains electron-releasing groups directly arranged on a surface of the core; and a second layer made of an ionic compound which is provided on the first layer in order to stablize the first layer, wherein said electron-releasing groups are of at least one type selected from the group consisting of —OR, —OCH wherein the ionic compound is of at least one type selected from the group consisting of ammonia, primary amines (R wherein said first layer and said second layer are formed from two separate surface treatments, and wherein said semiconductor nanoparticle has a fluorescent property with increased bandgap fluorescence by decreasing defective fluorescence.