Title:
PHOSPHORESCENT SUBSTANCE AND PHOSPHORESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2018/105633
Kind Code:
A1
Abstract:
Disclosed is a phosphorescent substance that comprises an electron donor molecule, which comes into a stable radical cationic state, and an electron acceptor molecule, which comes into a stable radical anionic state. After light irradiation of the phosphorescent substance is stopped, luminescence is observed at 10 K. The disclosed phosphorescent substance of the invention, which may consist only of organic compounds, can emit afterglow for a long time without requiring the use of any rare-earth element.
Inventors:
KABE RYOTA (JP)
ADACHI CHIHAYA (JP)
ADACHI CHIHAYA (JP)
Application Number:
PCT/JP2017/043741
Publication Date:
June 14, 2018
Filing Date:
December 06, 2017
Export Citation:
Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
International Classes:
C09K11/06
Domestic Patent References:
| WO2015041157A1 | 2015-03-26 |
Foreign References:
| JP2012193352A | 2012-10-11 | |||
| US20150069352A1 | 2015-03-12 | |||
| JP2006206618A | 2006-08-10 |
Other References:
ADACHI, CHIHAYA ET AL.: "Delayed fluorescent organic EL element using exciplex", THE JAPAN SOCEITY OF APPLIED PHYSICS AND THE RELATED SOCIETIES, vol. 59, no. 17p-F7-6, 2012, XP009507530
ADACHI, CHIHAYA ET AL.: "Factor in high-efficiency intersystem crossing of donor-substituted aromatic group, the donor having long-lived triplet excitio n", THE JAPAN SOCEITY OF APPLIED PHYSICS AND THE RELATED SOCIETIES, 2010, XP009507529
ADACHI, CHIHAYA ET AL.: "Efficient Persistent Room Temperature Phosphorescence in Organic Materials", THE JAPAN SOCEITY OF APPLIED PHYSICS AND THE RELATED SOCIETIES, 2010, XP009507528
HANSCH, C., CHEM. REV., vol. 91, 1991, pages 165 - 195
See also references of EP 3553151A4
ADACHI, CHIHAYA ET AL.: "Factor in high-efficiency intersystem crossing of donor-substituted aromatic group, the donor having long-lived triplet excitio n", THE JAPAN SOCEITY OF APPLIED PHYSICS AND THE RELATED SOCIETIES, 2010, XP009507529
ADACHI, CHIHAYA ET AL.: "Efficient Persistent Room Temperature Phosphorescence in Organic Materials", THE JAPAN SOCEITY OF APPLIED PHYSICS AND THE RELATED SOCIETIES, 2010, XP009507528
HANSCH, C., CHEM. REV., vol. 91, 1991, pages 165 - 195
See also references of EP 3553151A4
Attorney, Agent or Firm:
SIKS & CO. (JP)
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