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  • 专利标题:   Method for preparing graphene layer of e.g. electronic device, involves heating portion of graphene oxide layer by laser irradiation at specific laser output power, so that portion of graphene oxide is chemically reduced to graphene.
  • 专利号:   WO2015150198-A1, IN201647037404-A, US2017018712-A1, EP3127175-A1, CN106458600-A, JP2017519703-W
  • 发明人:   BALKENENDE A R, GIESBERS A J M, VAN DER TEMPEL L
  • 专利权人:   KONINK PHILIPS NV, PHILIPS LIGHTING HOLDING BV, PHILIPS LIGHTING HOLDING BV
  • 国际专利分类:   C01B031/04, H01L051/54, H01L051/56, H01L051/00, H01L051/52, C01B032/184, C01B032/192, B05D003/06, B05D005/12, B05D007/24, H01L021/268, H01L021/28, H01L051/50, H05B033/10, H05B033/28
  • 专利详细信息:   WO2015150198-A1 08 Oct 2015 H01L-051/56 201571 Pages: 32 English
  • 申请详细信息:   WO2015150198-A1 WOEP056481 26 Mar 2015
  • 优先权号:   EP163503

▎ 摘　　要

NOVELTY - The method involves preparing partially transparent and conductive layer (22) comprising graphene. A dispersion comprising graphene oxide is applied onto substrate (21) to form graphene oxide layer on substrate. A portion of graphene oxide layer heated by irradiation of laser beam (34) at specific laser output power to provide required energy density, so that portion of graphene oxide is chemically reduced to graphene (33) and thickness of graphene oxide layer is physically reduced by ablation. USE - Method for preparing graphene layer of electronic device and optoelectronic device (all claimed) such as organic LED and display. ADVANTAGE - The graphene layer is prepared effectively with desirable transparency and conductivity by simplified process, by heating the portion of graphene oxide layer by laser irradiation at specific laser output power, so that portion of graphene oxide is chemically reduced to graphene. DESCRIPTION OF DRAWING(S) - The drawing shows a cross sectional view of the graphene oxide layer on substrate. Substrate (21) Conductive layer (22) Graphene (33) Laser beam (34) Arrangement for preparation of graphene layer (200)