PROCESS OF FORMING A CADMIUM AND SELENIUM CONTAINING NANOCRYSTALLINE COMPOSITE AND NANOCRSTALLINE COMPOSITE OBTAINED THEREFROM

摘要

Provided is a process of forming a Cd and Se containing nanocrystalline composite.The nanocrystalline composite has a composition of one of (a) Cd, M, Se, (b) Cd,Se, A, and (c) Cd, M, Se, A, with M being an element of group (12) of the PSE other thanCd and A being an element of group (16) of the PSE other than O and Se. In one embodimentin a suitable solvent a solution of the element Cd, or a precursor thereof, and,where applicable, of M, or a precursor thereof is formed. To the solution the elementSe and, where applicable, A is added and thereby a reaction mixture formed. Thereaction mixture is heated for a sufficient period of time at a temperature suitablefor forming the Cd and Se containing nanocrystalline composite and then the reactionmixture is allowed to cool. Finally the Cd and Se containing nanocrystallinecomposite isolated. In another embodiment the reaction mixture is formed byadding into a suitable solvent the element Cd, or a precursor thereof, Se, whereapplicable M and where applicable A. In this embodiment the reaction mixtureis heated and water formed during the process is being removed.