Title:
PHOSPHORESCENT SUBSTANCE AND PHOSPHORESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/189045
Kind Code:
A1
Abstract:
Provided is a phosphorescent substance which comprises an electron donor and an electron acceptor, wherein an electron transfer from the electron donor to the electron acceptor occurs upon light irradiation to form a charge-transferred state and thereafter a back electron transfer from the electron acceptor to the electron donor occurs to move the excited triplet energy of the charge-transferred state to an excitation triplet energy level of the electron donor or electron acceptor, thereby emitting light.
Inventors:
KABE RYOTA (JP)
LIN ZESEN (JP)
NISHIMURA NAOHIRO (JP)
ADACHI CHIHAYA (JP)
LIN ZESEN (JP)
NISHIMURA NAOHIRO (JP)
ADACHI CHIHAYA (JP)
Application Number:
PCT/JP2019/012635
Publication Date:
October 03, 2019
Filing Date:
March 26, 2019
Export Citation:
Assignee:
UNIV KYUSHU NAT UNIV CORP (JP)
International Classes:
C09K11/06
Domestic Patent References:
| WO2015041157A1 | 2015-03-26 | |||
| WO2018105633A1 | 2018-06-14 |
Foreign References:
| JP2018501668A | 2018-01-18 | |||
| JP2017028283A | 2017-02-02 |
Other References:
MOON, C. ET AL.: "Combined inter-and intramolecular charge-transfer processes for highly efficient fluorescent organic light-emitting diodes with reduced triplet exciton quenching", ADVANCED MATERIALS, vol. 29, no. 7, 3 May 2017 (2017-05-03), pages 1606448, XP055638839
GOUSHI, KENICHI ET AL.: "Delayed organic electroluminescence devices using an exciplex state", JAPAN SOCIETY OF APPLIED PHYSICS AND THE RELATED SOCIETIES. EXTENDED ABSTRACTS OF THE SPRING MEETING 59
LIN, Z. ET AL.: "Organic long-persistent luminescence from a flexible and transparent doped polymer", ADVANCED MATERIALS, vol. 30, no. 45, 8 November 2018 (2018-11-08), pages 1803713, XP055638866
GOUSHI, KENICHI ET AL.: "Delayed organic electroluminescence devices using an exciplex state", JAPAN SOCIETY OF APPLIED PHYSICS AND THE RELATED SOCIETIES. EXTENDED ABSTRACTS OF THE SPRING MEETING 59
LIN, Z. ET AL.: "Organic long-persistent luminescence from a flexible and transparent doped polymer", ADVANCED MATERIALS, vol. 30, no. 45, 8 November 2018 (2018-11-08), pages 1803713, XP055638866
Attorney, Agent or Firm:
SIKS & CO. (JP)
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