Synthesis and properties of new hole transport materials for organic light-emitting devices

Mukundan Thelakkat; Andreas Bacher; Ralf Fink; Frank Haubner; Hans-Werner Schmidt

doi:10.1117/12.279329

1 December 1997 Synthesis and properties of new hole transport materials for organic light-emitting devices

Mukundan Thelakkat, Andreas Bacher, Ralf Fink, Frank Haubner, Hans-Werner Schmidt

Author Affiliations +

Proceedings Volume 3148, Organic Light-Emitting Materials and Devices; (1997) https://doi.org/10.1117/12.279329
Event: Optical Science, Engineering and Instrumentation '97, 1997, San Diego, CA, United States

Abstract

We synthesized low molecular weight triphenyldiamines (TPDs), novel 1,3,5-tris(diarylamino)benzenes (TDABs), polymeric triphenyldiamines and insoluble triphenylamine networks based on tris(4-ethynylphenyl)amine as hole transport materials for electroluminescent displays. The HOMO energy values as determined from cyclic voltammetry measurements for TPDs and TDABs are between -4.97 and -5.16 eV. By using a polymeric TPD as hole transport layer and tris(8-quinolinolato) aluminium as emitter, LEDs with an onset voltage of 3V and a luminance up to 900 cs?m² were obtained under ambient conditions, using airstable Al-electrode as cathode and ITO as anode.

Citation Download Citation

Mukundan Thelakkat, Andreas Bacher, Ralf Fink, Frank Haubner, and Hans-Werner Schmidt "Synthesis and properties of new hole transport materials for organic light-emitting devices", Proc. SPIE 3148, Organic Light-Emitting Materials and Devices, (1 December 1997); https://doi.org/10.1117/12.279329

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