SELECTIVE PLACEMENT OF CARBON NANOTUBES VIA COULOMBIC ATTRACTION OF OPPOSITELY CHARGED CARBON NANOTUBES AND SELF-ASSEMBLED MONOLAYERS
申请人:International Business Machines Corporation
公开号:US20160137605A1
公开(公告)日:2016-05-19
A method of forming a structure having selectively placed carbon nanotubes, a method of making charged carbon nanotubes, a bi-functional precursor, and a structure having a high density carbon nanotube layer with minimal bundling. Carbon nanotubes are selectively placed on a substrate having two regions. The first region has an isoelectric point exceeding the second region's isoelectric point. The substrate is immersed in a solution of a bi-functional precursor having anchoring and charged ends. The anchoring end bonds to the first region to form a self-assembled monolayer having a charged end. The substrate with charged monolayer is immersed in a solution of carbon nanotubes having an opposite charge to form a carbon nanotube layer on the self-assembled monolayer. The charged carbon nanotubes are made by functionalization or coating with an ionic surfactant.
一种形成具有选择性放置碳纳米管的结构的方法,一种制备带电碳纳米管的方法,一种双功能前体,以及具有高密度碳纳米管层且最小捆绑的结构。碳纳米管被选择性地放置在具有两个区域的基底上。第一个区域的等电点超过第二个区域的等电点。基底浸入具有锚定端和带电端的双功能前体溶液中。锚定端与第一个区域结合形成具有带电端的自组装单分子层。带有带电单分子层的基底浸入具有与其带电相反的电荷的碳纳米管溶液中,形成碳纳米管层在自组装单分子层上。带电碳纳米管通过功能化或涂覆离子表面活性剂而制备。