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  • 专利标题:   Production of carbon-based light emitting material e.g. graphene quantum dots, involves mixing and heating raw material comprising ascorbic acid, acid catalyst, and solvent to obtain material emitting light having preset wavelength.
  • 专利号:   WO2017130999-A1, TW201741440-A, KR2018101580-A, CN108603110-A, JP2017564290-X, EP3409746-A1, EP3409746-A4, US2019055466-A1
  • 发明人:   ISAJI TADAYUKI, OTANI NAOKI, MAEDA SHINICHI, UEDA MASAHIRO, KAWASAKI TAKEYOSHI, ISAJI T, OTANI N, MAEDA S, UEDA M, KAWASAKI T, TADAYUKI I, NAOKI O, SHINICHI M, MASAHIRO U, TAKAYOSHI K
  • 专利权人:   NISSAN CHEM IND LTD, NISSAN CHEM CORP, NISSAN CHEM IND LTD, NISSAN CHEM IND LTD
  • 国际专利分类:   C09K011/08, C09K011/65, C01B032/184
  • 专利详细信息:   WO2017130999-A1 03 Aug 2017 C09K-011/08 201756 Pages: 14 Japanese
  • 申请详细信息:   WO2017130999-A1 WOJP002446 25 Jan 2017
  • 优先权号:   JP012258, WOJP002446, CN80008337

▎ 摘　　要

NOVELTY - Production of carbon-based light emitting material which emits light having a wavelength of 550-700 nm when exposed to excitation light having a wavelength of 300-600 nm, involves mixing and heating a raw material comprising ascorbic acid, an acid catalyst containing an inorganic acid, and a solvent. USE - Production of carbon-based light emitting material e.g. graphene quantum dots. ADVANTAGE - The method enables production of carbon-based light emitting material with improved luminescence quantum yield, light emitting properties and chemical stability. The carbon-based light emitting material obtained from the method emits red fluorescence.