Abstract
Abstract The boron complexes coordinated with the anion of 2,3-dihydroxynaphthalene (DHN) or 2,3-dihydroxyquinoxaline (DHQx) were synthesized and applied to the organic electroluminescent devices as a blue light emitting layer. Emission peaks were observed at 480 and 430 nm in photoluminescence spectra of (DHQx) 3 B and Ph 2 B(DHN), respectively. The electroluminescent devices containing the emitting layer of Ph 2 B(DHN) showed greenish blue luminescence with the maximum emission peak at 498 nm. The ionization potential, electron affinity and electrochemical gap of (DHQx) 3 B and of Ph 2 B(DHN) were investigated with cyclic voltammetry and found to be consistent with their UV–vis absorption spectral band gap.
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