LIGHT-EMITTING MATERIAL COMPRISING PHOTOACTIVE GROUP-BONDED POLYSILSESQUIOXANE HAVING A LADDER STRUCTURE, THIN FILM USING THE SAME AND ORGANIC ELECTROINIC DEVICE COMPRISING THE SAME

摘要

PURPOSE: A light-emitting material is provided to ensure excellent heat resistance and mechanical properties and high light emitting efficiency and to eliminate the disadvantages of a POSS structure with weak thin film properties. CONSTITUTION: A light-emitting material comprises polysilsesquioxane having a ladder structure where a photoactive group is bonded to a siloxane main chain. The polysilsesquioxane is represented by chemical formula 1. In chemical formula 1, R is a functional group having optical activity by a double or triple bond within a phenyl-based monocyclic group, a heterocyclic group thereof or cyclic group, or a derivative thereof, wherein the phenyl-based monocyclic group includes a substituted or unsubstituted phenylene, pyrene, rubrene, coumarin, oxazine, carbazole, thiophene, iridium, porphyrin, and azo-based dye functional groups; and n is 1-100,000.