Method for attaching rod-shaped nano structure to probe holder

Abstract

The present invention relates to a method for manufacturing a probe for detecting surface signals or chemical signals through a long and slender rod-shaped nano structure such as tungsten nanowire, carbon nanotube, boron nanotube, etc., being attached to a tip end portion thereof. According to the method, a holder, acting as the probe, including a first electrode to which the rod-shaped nano structure is attached, and a second electrode at a predetermined distance from the first electrode are partially or fully immersed in a solution containing the rod-shaped structure. When a voltage is applied between two electrodes, an electrical field is generated, and the rod-shaped nano structure is attached to the holder, acting as the probe.

1 . A method for attaching a rod-shaped nano structure to a tip end portion of SPM (Scanning Probe Microscope) probe, the method comprising the steps of: 
 disposing a first electrode having a designated shape;    manufacturing a conductive tip end portion of the SPM probe for a voltage to be applied thereto, and disposing the tip end portion at a predetermined distance from the first electrode;    supplying a solution in which the rod-shaped nano structure is dispersed between the tip end portion of the SPM probe and the first electrode such that at least part of the tip end portion of the SPM probe and the electrode is immersed in the solution; and    attaching the nano structure being dispersed in the solution to the tip end portion of the SPM probe by applying a voltage to the electrodes.    
     
     
         2 . The method according to  claim 1 , further comprising the step of: 
 after the attaching step, fastening the nano structure to the holder more firmly by means of a fastening means like as coating film or fusion-welding or deposition of inorganic material islands.    
     
     
         3 . A probe for detecting mechanical, electrical and chemical signals, comprising: 
 a holder;    a rod-shaped nano structure, wherein one end portion of the nano structure is connected to the holder to be supported and the other end portion is relatively more protruded than the holder for detecting signals; and    an adhesion layer, wherein is placed between the holder and nano structure, giving a role of chemical bonding so as to attach the nano structure on the holder.    
     
     
         4 . A probe for detecting mechanical, electrical and chemical signals, comprising: 
 a holder;    a rod-shaped nano structure, wherein one end portion of the nano structure is connected to the holder to be supported and the other end portion is relatively more protruded than the holder for detecting signals; and    inorganic material islands for fastening the rod-shaped nano structure to the holder more firmly, the inorganic material islands being formed on a connection portion of the rod-shaped nano structure and the holder.