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- W2783809283 abstract "n-Type doping with (4-(1,3-dimethyl-2,3-dihydro-1H-benzoimidazol-2-yl)phenyl) dimethylamine (N-DMBI) reduces a work function (WF) of graphene by ∼0.45 eV without significant reduction of optical transmittance. Solution process of N-DMBI on graphene provides effective n-type doping effect and air-stability at the same time. Although neutral N-DMBI act as an electron receptor leaving the graphene p-doped, radical N-DMBI acts as an electron donator leaving the graphene n-doped, which is demonstrated by density functional theory. We also verify the suitability of N-DMBI-doped n-type graphene for use as a cathode in inverted polymer light-emitting diodes (PLEDs) by using various analytical methods. Inverted PLEDs using a graphene cathode doped with N-DMBI radical showed dramatically improved device efficiency (∼13.8 cd/A) than did inverted PLEDs with pristine graphene (∼2.74 cd/A). N-DMBI-doped graphene can provide a practical way to produce graphene cathodes with low WF in various organic optoelectronics." @default.
- W2783809283 created "2018-01-26" @default.
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- W2783809283 date "2018-01-26" @default.
- W2783809283 modified "2023-10-17" @default.
- W2783809283 title "Solution-Processed n-Type Graphene Doping for Cathode in Inverted Polymer Light-Emitting Diodes" @default.
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- W2783809283 doi "https://doi.org/10.1021/acsami.7b15307" @default.
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