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- W2001937155 abstract "ABSTRACT We synthesized low molecular weight triphenyldiamines (TPDs), novel 1,3,5-tris(diarylamino)benzenes (TDABs), polymerictriphenyldiamines and insoluble triphenylamine networks based on tris(4-ethynylphenyl)amine as hole transport materials forelectroluminescent displays. The HOMO energy values as determined from cyclic voltammetry measurements for TPDs andTDABs are between -4.97 and -5.16 eV. By using a polymeric TPD as hole transport layer and tris(8-qumolinolato) alumini-urn as emitter, LEDs with an onset voltage of 3V and a luminance up to 900 cd/rn2 were obtained under ambient conditions,using airstable Al-electrode as .cathode and ITO as anode.Keywords: hole transport materials, electroluminescence, triphenyldiamine, triphenylamine networks, polymeric tripheny-lamines, tris(diarylamino)benzenes, light emitting devices INTRODUCTION Recently, a lot of research has been devoted to the development of new organic materials for light emitting devices. In addi-tion to the requirements such as thermal stability, photostability and good film-forming properties, these materials shouldexhibit electrochemical stability and reversible redox behavior. Triphenylamine derivatives are well known hole transportmaterials with high charge transport mobilities. The low molecular weight triphenyldiammes (TPDs) which are frequentlyused in light emitting devices (LEDs) have low glass transition temperatures (Ta) and very recently a variety of new deriva-tives with high TgS have been developed ." @default.
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- W2001937155 date "1997-12-01" @default.
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- W2001937155 title "<title>Synthesis and properties of new hole transport materials for organic light-emitting devices</title>" @default.
- W2001937155 doi "https://doi.org/10.1117/12.279329" @default.
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