Patent ID: 8287951
Filing Date: 2012-10-16
Classification: C09K,C30B,H01L,Y10T

Abstract:
1. A process for preparing a single source solid precursor matrix for semiconductor nanocrystals comprising the steps of: a) mixing of 0.1-1 Molar of an aqueous or non-aqueous (organic) solution containing a first component of a host matrix with 0.001-0.01 Molar of an aqueous/non-aqueous solution containing first dopant ions, which needs in situ modification of valency state; b) dissolving 10-20 milligram of an inorganic salt for the in situ reduction of the first dopant ions in the solution; c) addition of 0.001-0.01 Molar of an aqueous/non-aqueous solution of an inorganic salt containing second dopant ions which do not need modifications of their valency state; d) addition of 0.1-1 Molar of an aqueous/non-aqueous solution of an inorganic salt containing a second component of the host matrix; e) addition of 5-10% by weight of an aqueous solution containing a pH modifying complexing agent, to obtain a mixture; and f) heating the mixture thus obtained in step (e) to obtain a solid layered micro-structural precursor compound.