The present invention provides a diarylaminofluorene chromophore compound having the following structure: ##STR00001## wherein: M is a metal atom of Ir, Pt; R is H, CH3, OCH3, or F; A is none or six-member carbocyclic aromatic ring system; 0.gtoreq.m.gtoreq.3 0.gtoreq.n.gtoreq.1.The invention also provides high-efficiency organic light-emitting devices fabricated using these compounds.