Title:
CHARGE-TRANSPORTING VARNISH
Document Type and Number:
WIPO Patent Application WO/2015/050057
Kind Code:
A1
Abstract:
A charge-transporting varnish which contains a charge-transporting substance containing fluorine atoms, a charge-transporting substance containing no fluorine atoms, a dopant substance composed of a heteropolyacid, and an organic solvent. The charge-transporting substance containing fluorine atoms is a polymer which is obtained by condensing a triaryl amine compound, an arylaldehyde compound containing fluorine atoms, a fluorene derivative having a carbonyl group and a carbazole derivative having an alkyl group or an alkyl group containing an ether structure in the N-position, and which has a weight average molecular weight of 1,000-200,000. The charge-transporting substance containing no fluorine atoms is an oligoaniline compound. A thin film formed from this charge-transporting varnish is capable of providing an organic EL element having excellent luminance characteristics and durability even in cases where the thin film is used as a single layer between a positive electrode and a light emitting layer in such a manner that the thin film is in contact with the positive electrode and the light emitting layer.
Inventors:
OTANI NAOKI (JP)
Application Number:
PCT/JP2014/075641
Publication Date:
April 09, 2015
Filing Date:
September 26, 2014
Export Citation:
Assignee:
NISSAN CHEMICAL IND LTD (JP)
International Classes:
H01L51/50; C08G16/02; H05B33/10
Domestic Patent References:
| WO2010058777A1 | 2010-05-27 | |||
| WO2011065395A1 | 2011-06-03 | |||
| WO2014132917A1 | 2014-09-04 | |||
| WO2014132834A1 | 2014-09-04 | |||
| WO2014115865A1 | 2014-07-31 | |||
| WO2008032617A1 | 2008-03-20 | |||
| WO2008032616A1 | 2008-03-20 | |||
| WO2008129947A1 | 2008-10-30 | |||
| WO2013084664A1 | 2013-06-13 |
Foreign References:
| JP2002241455A | 2002-08-28 | |||
| US4624999A | 1986-11-25 | |||
| JPH10302963A | 1998-11-13 |
Other References:
ADACHI C. ET AL., JPN. J. APPL. PHYS., vol. 27, no. 2, 1988, pages L269 - 271
BULLETIN OF CHEMICAL SOCIETY OF JAPAN, vol. 67, 1994, pages 1749 - 1752
SYNTHETIC METALS, vol. 84, 1997, pages 119 - 120
See also references of EP 3054497A4
BULLETIN OF CHEMICAL SOCIETY OF JAPAN, vol. 67, 1994, pages 1749 - 1752
SYNTHETIC METALS, vol. 84, 1997, pages 119 - 120
See also references of EP 3054497A4
Attorney, Agent or Firm:
KOJIMA Takashi et al. (JP)
Takashi Kojima (JP)
Takashi Kojima (JP)
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