Fluorinated Alq(3) derivatives with tunable optical properties

摘要

This communication reports that not only the emission colour but also the photoluminescence quantum yield of Alq(3) can be tuned by introducing fluorine atoms at different positions; with fluorination at C-5 the emission is red-shifted with a tremendously decreased intensity, fluorination at C-6 causes a blue-shift with a significantly increased intensity, and fluorination at C-7 has a minor effect on both the colour and intensity of Alq(3)'s emission.