Organic electroluminescence device with mixed hole transporting

Details Organic electroluminescence device with mixed hole transporting Organic electroluminescence device with mixed hole transporting

1995-11-17

1998-09-08

Yamnitzky, Marie R.

Stock material or miscellaneous articles

Composite

Of inorganic material

428917, 428448, 428450, 428457, 428704, 313504, 313506, H05B 3300

Patent

active

058043225

ABSTRACT:
An organic electroluminescent device is disclosed which has a cathode, an electron transporting zone, an emitting zone, an hole transporting zone and an anode that are laminated in sequence. The hole transporting zone includes at least one hole transporting layer fabricated with two or more homogeneously mixed hole transporting materials each having a glass transition temperature above 75.degree. C. and which are structurally compatible.

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Naito, K. et al., "Molecular Design for Nonpolymeric Organic Dye Glasses . . . ", The Journal of Physical Chemistry, vol. 97, No. 23, Jun. 1993, pp. 6240-6248.
Adachi, C. et al. "Molecular Design of Hole Transport Materials . . . ", Applied Physics Letters, vol. 66, No. 20, May 1995, pp. 2679-2681.

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