Title:
LIGHT EMITTING DEVICE
Document Type and Number:
WIPO Patent Application WO/2018/121754
Kind Code:
A1
Abstract:
A light emitting device, comprising: a light emitting element and a light conversion portion; the light conversion portion absorbs primary light emitted from the light emitting element and converts the same into secondary light having a higher wavelength; the light conversion portion contains a light emitting material, the light emitting material comprising an organic complex, wherein the organic complex is composed of a tetrapyrrole macrocyclic ligand A, a rare earth ion Ln, and a deuterated or halogenated tripod ligand B. A porphyrin ligand of the organic complex in the light emitting material has high sensitization efficiency (70%-100%), external quantum dot efficiency, and light emitting stability. When the light emitting material is applied to the light emitting device, the light emitting efficiency and stability of the light emitting device are increased. In addition, the use of different rare earth ions or a combination of rare earth ions may achieve the adjustment and control of the emission peak position and peak width, thereby improving the light emitting performance thereof.
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Inventors:
LIU RONGHUI (CN)
LIU YUANHONG (CN)
MA XIAOLE (CN)
SHAO LENGLENG (CN)
LI YANFENG (CN)
CHEN XIAOXIA (CN)
LIU YUANHONG (CN)
MA XIAOLE (CN)
SHAO LENGLENG (CN)
LI YANFENG (CN)
CHEN XIAOXIA (CN)
Application Number:
PCT/CN2017/119954
Publication Date:
July 05, 2018
Filing Date:
December 29, 2017
Export Citation:
Assignee:
GRIREM ADVANCED MAT CO LTD (CN)
International Classes:
C07D487/22; C07F17/00; C09K11/06; H01L51/00
Domestic Patent References:
| WO2002101847A2 | 2002-12-19 |
Other References:
HU , JIYUN ET AL.: "Highly Near-IR Emissive Ytterbium (III) Complexes with Unprecedented Quantum Yields", CHEM. SCI., vol. 8, 13 January 2017 (2017-01-13), pages 2702 - 2709, XP055511804, Retrieved from the Internet
NING, YINGYING ET AL.: "Bioinspired Orientation of beta-Substituents on Porphyrin Antenna Ligands Switches Ytterbium (III) NIR Emission with Thermosensitivity", INORG. CHEM., vol. 56, no. 4, 1 February 2017 (2017-02-01), pages 1897 - 1905, XP055511823, Retrieved from the Internet
HU , JIYUN ET AL.: "beta-Fluorinated Porpholactones and Metal Complexes: Synthesis, Characterization and some Spectroscopic Studies", INORG. CHEM. FRONT., vol. 4, no. 9, 24 July 2017 (2017-07-24), pages 1539 - 1545, XP055511825, Retrieved from the Internet
FOLEY, T.J. ET AL.: "Facile Preparation and Photophysics of Near-Infrared Luminescent Lanthanide (III) Monoporphyrinate Complexes", INORG. CHEM., vol. 42, no. 16, 12 July 2003 (2003-07-12), pages 5023 - 5032, XP055045803
KE , XIANSHENG ET AL.: "Gadolinium (III) Porpholactones as Efficient and Robust Singlet Oxygen Photosensitizers", CHEM. EUR. J., vol. 22, no. 28, 1 June 2016 (2016-06-01), pages 9676 - 9686, XP055465179, Retrieved from the Internet
KE , XIANSHENG ET AL.: "Ytterbium (III) Porpholactones: beta-Lactonization of Porphyrin Ligands Enhances Sensitization Efficiency of Lanthanide Near-Infrared Luminescence", CHEM. EUR. J., vol. 20, no. 15, 3 March 2014 (2014-03-03), pages 4324 - 4333, XP055511829, Retrieved from the Internet
WONG, W. ET AL.: "Synthesis, Structures, Reactivity and Photoluminescence of Lanthanide (III) Monoporphyrinate Complexes", COORDINATION CHEMISTRY REVIEWS, vol. 251, no. 17-20, September 2007 (2007-09-01), pages 2386 - 2399, XP022247746, Retrieved from the Internet
NING, YINGYING ET AL.: "Bioinspired Orientation of beta-Substituents on Porphyrin Antenna Ligands Switches Ytterbium (III) NIR Emission with Thermosensitivity", INORG. CHEM., vol. 56, no. 4, 1 February 2017 (2017-02-01), pages 1897 - 1905, XP055511823, Retrieved from the Internet
HU , JIYUN ET AL.: "beta-Fluorinated Porpholactones and Metal Complexes: Synthesis, Characterization and some Spectroscopic Studies", INORG. CHEM. FRONT., vol. 4, no. 9, 24 July 2017 (2017-07-24), pages 1539 - 1545, XP055511825, Retrieved from the Internet
FOLEY, T.J. ET AL.: "Facile Preparation and Photophysics of Near-Infrared Luminescent Lanthanide (III) Monoporphyrinate Complexes", INORG. CHEM., vol. 42, no. 16, 12 July 2003 (2003-07-12), pages 5023 - 5032, XP055045803
KE , XIANSHENG ET AL.: "Gadolinium (III) Porpholactones as Efficient and Robust Singlet Oxygen Photosensitizers", CHEM. EUR. J., vol. 22, no. 28, 1 June 2016 (2016-06-01), pages 9676 - 9686, XP055465179, Retrieved from the Internet
KE , XIANSHENG ET AL.: "Ytterbium (III) Porpholactones: beta-Lactonization of Porphyrin Ligands Enhances Sensitization Efficiency of Lanthanide Near-Infrared Luminescence", CHEM. EUR. J., vol. 20, no. 15, 3 March 2014 (2014-03-03), pages 4324 - 4333, XP055511829, Retrieved from the Internet
WONG, W. ET AL.: "Synthesis, Structures, Reactivity and Photoluminescence of Lanthanide (III) Monoporphyrinate Complexes", COORDINATION CHEMISTRY REVIEWS, vol. 251, no. 17-20, September 2007 (2007-09-01), pages 2386 - 2399, XP022247746, Retrieved from the Internet
Attorney, Agent or Firm:
KANGXIN PARTNERS, P. C. (CN)
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