Electroluminescent devices and processes using polythiophenes

Details Electroluminescent devices and processes using polythiophenes Electroluminescent devices and processes using polythiophenes

1993-08-25

1999-10-12

Krynski, William

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428690, 428917, 313503, 313504, 25230116, 25230121, 25230134, 25230135, B32B 300

Patent

active

059652411

ABSTRACT:
Electroluminescent devices have, as the active layer, a polymer comprising a poly(3-substituted thiophene), the 3-substituent of which is an alkyl, cycloalkyl, alkoxy, cycloalkoxy, alkoxyalkyl, fluorocarbon, siloxyl or heteroorganic group, the poly(3-substituted thiophene) having a head-to-tail ratio of at least about 80 percent. Such devices give better electroluminescent performance than similar devices using a poly(3-substituted thiophene) having a lower head-to-tail ratio.

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Ohmori et al., Jap. J. Appl. Phys. 30(11B), L1938-L1940 (1991).
Ohmori et al., Solid State Commun. 80(8), 605-608 (1991).

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