豎立在晶態(tài)金表面上的短單壁碳納米管
ASSEMBLED SORTER SINGLE-WALLED CARBON NANOTUBES STAND-ON GOLD FILM SURFACE
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摘要: 合成和提純了單壁碳納米管(SWCNTs),用膠體將其豎直地組裝在金薄膜表面上。用此組裝技術制造了掃描隧道顯微鏡(STM)的針尖,成功地觀測到了金晶粒的形貌像和高定向石墨的原子像。SWCNTs豎立在金表面上對于電學特性測量,制造場發(fā)射電子源,組裝納米電子器件,制作掃描探針顯微鏡(SPM)針尖等有重要意義。Abstract: The single-walled carbon nanotubes(SWCNTs) are synthesized and purified.A water colloid of SWCNTs is prepared and used to assemble SWCNTs on a gold film surface.Its STM image shows sorter SWCNTs standing-on gold film surface.The crystal grain image of gold thin film and an atomic structure highly oriented pyrolytic graphite (HOPG) are observed using a scanning tunneling microscope(STE) with the SWCNT tip made from the water colloid mentioned above.The SWCNTs standing-on gold film surface is very important for measuring electronic properteis of carbon anotubes,fabricating field emission cathode,structing nanoelectrnic devices,and makign tips of a scannign probe microscope(SPM).
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