Arylsulfonic acid compound and use thereof as...

Details Arylsulfonic acid compound and use thereof as... Arylsulfonic acid compound and use thereof as...

2011-01-04

2011-01-04

Kopec, Mark (Department: 1796)

Compositions

Electrically conductive or emissive compositions

C257S040000

Reexamination Certificate

active

07862747

ABSTRACT:
An excellent EL device having low driving voltage, high luminous efficiency and long life can be obtained by using a charge-transporting thin film composed of a charge-transporting varnish which contains an arylsulfonic acid compound represented by the formula (1) or (2) below as an electron-acceptor material especially in an OLED device or a PLED device.[In the formulae, X represents O, S or NH; A represents a naphthalene ring or anthracene ring having a substituent other than X and n SO3H groups; B represents a substituted or unsubstituted hydrocarbon group, 1,3,5-triazine group or a substituted of unsubstituted group represented by the following formula (3) or (4):(wherein W1and W2each independently represents O, S, an S(O) group, an S(O2) group, or a substituted or unsubstituted N, Si, P or P(O) group); n indicates the number of sulfonic acid groups bonded to A which is an integer satisfying 1≦n≦4; q indicates the number of B—X bonds which is an integer satisfying 1≦q; and r indicates the number of recurring units which is an integer satisfying 1≦r.].

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