A Crystal Host Selection For Aqueous Colloidal Luminescent Nanocrystals Doped By Nd3+ Used For Bioimaging In First Biological Window

Simple criteria for crystal host selection for Nd3+ doped nanocrystals using as fluorescent agents in the first biological window of wavelengths is set. It is a ratio of Judd-Ofclt intensity parameters 1.24/.126, which must be as large as possible to reduce the fluorescence Nd*-Nd self -quenching and Nd*-01-1quenching caused by vibrations of molecular groups positioned in the volume of nanocrystals. Keywords Nd5+:LaF3; Ne:KY3Fio; colloidal crystals; hydrothermal microwave treatment treatment; NJR fluorescence self -quenching; quenching by OTT acceptors.