• 专利标题:   Producing graphene quantum ring useful in field effect transistor and solar cell, comprises e.g. adding carbon fiber into mixed solution of strong acid, ultrasonically processing, heat treating ultrasonically processed solution, and drying.
  • 专利号:   KR2017064593-A, KR1794520-B1
  • 发明人:   SIK Y K, SAMAL M, BARANGE N
  • 专利权人:   UNIV GACHON IND ACADEMIC COOP FOUND
  • 国际专利分类:   B01J019/10, C01B031/04, H01L029/16, H01L029/66, H01L031/04
  • 专利详细信息:   KR2017064593-A 12 Jun 2017 C01B-031/04 201745 Pages: 14
  • 申请详细信息:   KR2017064593-A KR169863 01 Dec 2015
  • 优先权号:   KR169863

▎ 摘  要

NOVELTY - Producing graphene quantum ring, comprises (a) adding carbon fiber into a mixed solution of strong acid, and ultrasonically processing, (b) heat treating the ultrasonically processed solution, and drying the solution to obtain a mixture, and (c) diluting the obtained mixture, adjusting the pH, dialyzing and cooling and drying the mixture. USE - The graphene quantum ring is useful in field effect transistor and solar cell (all claimed), preferably hybrid (inorganic and organic) solar cells and photoelectric device. ADVANTAGE - The graphene quantum ring has excellent electrical and optical properties, and work function of -4.16 eV. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for graphene quantum ring having zigzag and armchair hollow structure at the center and laminated with graphene sheet of cylindrical shape.