Improved performance of electrophosphorescent devices based on Re(CO)(3)Cl-dipyrido 3,2-a : 2('),3(')-c phenazine
作者： Chunyan Fu , Mingtao Li , Zhongmin Su , Ziruo Hong , Wenlian Li
DOI: 10.1063/1.2167401
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摘要: Highly efficient orange-yellow organic electroluminescent (EL) devices based on Re(CO)3Cl‐dipyrido[3,2‐a:2′,3′‐c]phenazine (Re-DPPz) have been fabricated. By incorporating Re-DPPz into EL with balanced charge injection and host-to-guest energy transfer, the performances were significantly improved comparing previously reports same complex. For device 7wt% doped emissive layer, turn-on voltage of 6V, maximum efficiency 6.3cd∕A, emission brightness approaching 1000 cd∕m2 achieved. The mechanism responsible for significant improvement was discussed.
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