• 专利标题:   Seamless transferring large-area graphene involves performing chemical vapor deposition on copper foil for graphene growth, spin coating with poly(methyl methacrylate) and roll coating epoxy AB glue on polyethylene terephthalate surface.
  • 专利号:   CN105000551-A
  • 发明人:   WANG M, CAI C
  • 专利权人:   UNIV HEFEI TECHNOLOGY
  • 国际专利分类:   C01B031/04
  • 专利详细信息:   CN105000551-A 28 Oct 2015 C01B-031/04 201612 Pages: 7 Chinese
  • 申请详细信息:   CN105000551-A CN10400311 08 Jul 2015
  • 优先权号:   CN10400311

▎ 摘  要

NOVELTY - Seamless transferring large-area graphene involves taking 25 mu m copper foil, performing chemical vapor deposition for high-quality graphene growth, spin coating with 100 mg/mL poly(methyl methacrylate), baking at 168-170 degrees C for 4.6-5 minutes to obtain first component, taking epoxy AB glue comprising main agent and hardener at mass ratio of 1:1, roll coating on clean polyethylene terephthalate surface as substrate to obtain second component, combining two components, baking at 120-130 degrees C, etching, washing graphene film with deionized water and dilute hydrochloric acid respectively and drying. USE - Method for seamless transferring large-area graphene. ADVANTAGE - The graphene has 219-300 Omega sq-1 surface resistance and 96% light transmittance. The method is simple, has low production cost, and is suitable for continuous operation. DETAILED DESCRIPTION - Seamless transferring large-area graphene comprises taking 25 mu m copper foil, performing chemical vapor deposition for high-quality graphene growth, spin coating with 100 mg/mL poly(methyl methacrylate), baking at 168-170 degrees C for 4.6-5 minutes to obtain first component, taking epoxy AB glue comprising main agent and hardener at mass ratio of 1:1, roll coating on clean polyethylene terephthalate surface as substrate to obtain second component, combining two components, baking at 120-130 degrees C for 76-80 minutes, etching with 1 mol/L ferric chloride solution, washing graphene film with deionized water and dilute hydrochloric acid respectively and drying.