• 专利标题:   Coated micro tip used in atomic scale imaging, comprising a micro tip having a base and an oppositely disposed tip end; and graphene film coated on the tip.
  • 专利号:   WO2014011954-A1, US2015309073-A1
  • 发明人:   MIRKIN C A, SHIM W, BROWN K A, RASIN B, LIAO X, ZHOU X
  • 专利权人:   UNIV NORTHWESTERN
  • 国际专利分类:   B82Y040/00, G01Q070/14, G01Q070/06, G01Q070/16, G01Q080/00
  • 专利详细信息:   WO2014011954-A1 16 Jan 2014 G01Q-070/14 201409 Pages: 95 English
  • 申请详细信息:   WO2014011954-A1 WOUS050195 12 Jul 2013
  • 优先权号:   US671653P, US14414042

▎ 摘  要

NOVELTY - A coated micro tip, comprises a micro tip (14) having a base and an oppositely disposed tip end having a radius of curvature of less than 1 mu m; and a graphene film coated on the tip. USE - As coated micro tip (claimed) used in atomic scale imaging including atomic force microscope tip, near field scanning optical microscope tip, scanning tunneling microscope tip. ADVANTAGE - The coated micro tip has high wear resistant and electrically and thermally conducting; and is prepared by simple and cost effective manner. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for the following: (1) a micro probe, comprising the micro tip disposed on a micro cantilever arm; (2) a tip array micro probe comprising a tip substrate layer comprising a first surface and an oppositely disposed second surface, where the tip substrate layer comprising an elastomer; several tips fixed to the first surface, where the tip comprises a tip end disposed opposite the first surface, and where the graphene film is further coated on the first surface; (3) electrochemically patterning using a tip or micro probe involving applying a voltage across the graphene coating on the tip; and contacting an electrochemically sensitive substrate with the tip to electrochemically desorb the contacted portion of the electrochemically sensitive substrate; (4) thermal patterning using a tip or micro probe involving applying an electrical current across the graphene coating on at least one tip to resistively heat at least one tip and to heat an ink disposed on the tip; and contacting a substrate with the heated tip to apply the ink to the substrate; (5) making a graphene coated tip, involving coating a micro tip with a graphene film; and (6) making a graphene coated tip or micro probe involving immersing the tips of a tip or micro probe in a fluid comprising a graphene film floating on a surface of the fluid over the tips; disposing the immersed tips at an angle of at least 10 degrees relative to the graphene film floating on the surface of the fluid as measured from a plane parallel to the base of the tip; and coating the tips with the graphene film by gradually bringing the graphene film into contact with the tips while maintaining the relative angle between the floating portion of the film and the tips during coating. DESCRIPTION OF DRAWING(S) - The figure shows view of beam pen array and a beam pen lithography method. Tip substrate layer (12) Tip (14) Blocking layer (16) Aperture (18)