In addition to hole transport, diphenylamino-end-capped oligofluorenylthiophenes can exhibit efficient electron transport, in which the oligothiophene central core acts as an excellent electron-transporting moiety. The highly efficient undoped multilayer OLEDs using OF(2)TTP-NPh and OF(2)QTP-NPh as an electron-transporting emitter exhibited a maximum luminance of 19,800 and 11,800 cd m(-2) with a luminance efficiency up to 5.3 and 1.0 cd A(-1), respectively.
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| http://dx.doi.org/10.1021/ol701561s | DOI Listing |
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