Title:
ORGANIC ELECTROLUMINESCENT ELEMENT, GROUP OF ELEMENTS, METHOD FOR MANUFACTURING ORGANIC ELECTROLUMINESCENT ELEMENT, AND METHOD FOR CONTROLLING EMISSION WAVELENGTH OF ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
Japanese Patent JP2017126656
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element which can be adjusted to emit different emission wavelengths without the need for changing the combination of a donor compound and an acceptor compound.SOLUTION: An organic electroluminescent element comprises a donor layer 3 including a donor compound, a spacer layer 4 including a spacer compound, and an acceptor layer 5 including an acceptor compound in this order. The donor compound and the acceptor compound are compounds which form an exciplex and radiate delayed fluorescence, and the spacer compound is higher than the exciplex in excited triplet energy.SELECTED DRAWING: Figure 1
Inventors:
NAKANOYA HAJIME
FURUKAWA TARO
ADACHI CHIHAYA
FURUKAWA TARO
ADACHI CHIHAYA
Application Number:
JP2016005044A
Publication Date:
July 20, 2017
Filing Date:
January 14, 2016
Export Citation:
Assignee:
UNIV KYUSHU
International Classes:
H01L51/50; H05B33/10
Domestic Patent References:
| JP2005530320A | 2005-10-06 | |||
| JP2012193352A | 2012-10-11 |
Foreign References:
| WO2008143791A1 | 2008-11-27 | |||
| WO2015041157A1 | 2015-03-26 |
Other References:
DONG-YING ZHOU ET AL.: "Host to Guest Energy Transfer Mechanism in Phosphorescent and Fluorescent Organic Light-Emitting Dev", THE JOURNAL OF PHYSICAL CHEMISTRY, vol. C2014/118, JPN6020000125, 24 September 2014 (2014-09-24), pages 24006 - 24012, ISSN: 0004190121
TISSA SAJOTO ET AL.: "Blue and Near-UV Phosphorescence from Iridium Complexs with Cyclometalated Pyrazolyl or N-Heterocyc", INORGANIC CHEMISTRY ARTICLE, vol. 44, JPN6020000126, 27 September 2005 (2005-09-27), pages 7992 - 8003, ISSN: 0004190122
SHOUZHEN YUE ET AL.: "Optical simulation and optimization of weak-microcavity tandem white organic light emitting diodes", JOURNAL OF APPLIED PHISICS, vol. 116, JPN6020000129, 15 October 2014 (2014-10-15), pages 1 - 153102, ISSN: 0004190123
SUN YIN ET AL.: "Current-voltage characteristics of organic heterostructure devices with insulating spacer layers", ORGANIC ELECTRONICS, vol. 24, JPN7020000013, 14 May 2015 (2015-05-14), pages 26 - 29, ISSN: 0004190124
TISSA SAJOTO ET AL.: "Blue and Near-UV Phosphorescence from Iridium Complexs with Cyclometalated Pyrazolyl or N-Heterocyc", INORGANIC CHEMISTRY ARTICLE, vol. 44, JPN6020000126, 27 September 2005 (2005-09-27), pages 7992 - 8003, ISSN: 0004190122
SHOUZHEN YUE ET AL.: "Optical simulation and optimization of weak-microcavity tandem white organic light emitting diodes", JOURNAL OF APPLIED PHISICS, vol. 116, JPN6020000129, 15 October 2014 (2014-10-15), pages 1 - 153102, ISSN: 0004190123
SUN YIN ET AL.: "Current-voltage characteristics of organic heterostructure devices with insulating spacer layers", ORGANIC ELECTRONICS, vol. 24, JPN7020000013, 14 May 2015 (2015-05-14), pages 26 - 29, ISSN: 0004190124
Attorney, Agent or Firm:
Patent Service Corporation Patent Office Sykes
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