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Title:
GRAPHENE QUANTUM DOT COMPOSITE COMPRISING DIELECTRIC MATRIX, ELECTROLUMINESCENT DEVICE COMPRISING SAME, AND METHOD FOR PREPARING GRAPHENE QUANTUM DOT COMPOSITE
Document Type and Number:
WIPO Patent Application WO/2020/130325
Kind Code:
A1
Abstract:
A disclosed graphene quantum dot composite comprises a dielectric matrix comprising a metal oxynitride, and graphene quantum dots dispersed in the dielectric matrix. The graphene quantum dot composite can inhibit quenching caused by the aggregation of graphene quantum dots and can improve the quantum efficiency of graphene quantum dots.

Inventors:
JEON SEOKWOO (KR)
PARK MINSU (KR)
YOON HYEWON (KR)
Application Number:
PCT/KR2019/014548
Publication Date:
June 25, 2020
Filing Date:
October 31, 2019
Export Citation:
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Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
C09K11/02; C09K11/65; H01L51/50; B82Y20/00; B82Y40/00
Foreign References:
KR20170012345A2017-02-02
KR20130091381A2013-08-19
Other References:
PARK , MINSU: "Efficient Solid-State Photoluminescence of Graphene Quantum Dots Embedded in Boron Oxynitride for AC-Electroluminescent Device", ADVANCED MATERIALS, vol. 1802951, 7 August 2018 (2018-08-07), pages 1 - 8, XP055721552
LI, JUNWEN: "Graphene quantum dots embedded in hexagonal boron nitride sheets", APPLIED PHYSICS LETTERS, vol. 013105, 2011, pages 1 - 3, XP012139092, DOI: 10.1063/1.3533804
TABASSUM, HASSINA: "Hierarchical Cobalt Hydroxide and B/N Co-Doped Graphene Nanohybrids Derived from Metal-Organic Frameworks for High Energy Density Asymmetric Supercapacitors", SCIENTIFIC REPORTS, vol. 43084, 2017, XP055721553
Attorney, Agent or Firm:
PARK, Young-woo (KR)
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