Title:
LUMINESCENT THIN FILM AND ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2017/170812
Kind Code:
A1
Abstract:
The objective of the present invention is to provide: a luminescent thin film which has high luminous efficiency and a long emission life; and an organic electroluminescent element which uses this luminescent thin film and has improved stability during continuous driving.
A luminescent thin film according to the present invention is characterized by containing a phosphorescent metal complex and a host compound which forms an exciplex together with the phosphorescent metal complex.
Inventors:
ITO HIROTO (JP)
KITA HIROSHI (JP)
KITA HIROSHI (JP)
Application Number:
PCT/JP2017/013134
Publication Date:
October 05, 2017
Filing Date:
March 30, 2017
Export Citation:
Assignee:
KONICA MINOLTA INC (JP)
International Classes:
H01L51/50; C09K11/06
Domestic Patent References:
| WO2013035275A1 | 2013-03-14 | |||
| WO2013168688A1 | 2013-11-14 |
Foreign References:
| US20150069352A1 | 2015-03-12 |
Other References:
SU ET AL.: "A host material with a small singlet-triplet exchange energy for phosphorescent organic light-emitting diodes: Guest,host, and exciplex emission", ORGANIC ELECTRONICS, vol. 13, no. 10, 21 June 2012 (2012-06-21), pages 1937 - 1947, XP055429672
WANG ET AL.: "A Bipolar and Small Singlet-Triplet Splitting Energy Host with Triplet Energy Lower Than a Blue Phosphor for Phosphorescent OLEDs in Panchromatic Range", CHINESE JOURNAL OF CHEMISTRY, vol. 34, no. 8, 19 May 2016 (2016-05-19), pages 763 - 770, XP055429685
KOLOSOV ET AL.: "1,8-Naphthalimides in Phosphorescent Organic LEDs: The Interplay between Dopant, Exciplex, and Host Emission", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 124, no. 33, 24 July 2002 (2002-07-24), pages 9945 - 9954, XP055429699
WANG ET AL.: "A Bipolar and Small Singlet-Triplet Splitting Energy Host with Triplet Energy Lower Than a Blue Phosphor for Phosphorescent OLEDs in Panchromatic Range", CHINESE JOURNAL OF CHEMISTRY, vol. 34, no. 8, 19 May 2016 (2016-05-19), pages 763 - 770, XP055429685
KOLOSOV ET AL.: "1,8-Naphthalimides in Phosphorescent Organic LEDs: The Interplay between Dopant, Exciplex, and Host Emission", JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, vol. 124, no. 33, 24 July 2002 (2002-07-24), pages 9945 - 9954, XP055429699
Attorney, Agent or Firm:
KOYO INTERNATIONAL PATENT FIRM (JP)
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