Patent ID: 11911983
Assignee: POSTECH RESEARCH AND BUSINESS DEVELOPMENT FOUNDATION
Field: Micro-structural and nano-technology (Chemistry)
Classification: CPC B  D  G | IPC B  D

Claim 2:
3. The method of claim 1, wherein the critical speed (νc) is determined by the following equation:, v
    c
  
  =
  
    
      a
      
        d
        pt
      
    
    ⁢
    
      (
      
        a
        =
        
          4
          ⁢
          x
          ⁢
          
            
          
          ⁢
          E
          ⁢
          
            
              ϕ
              0
            
            
              
                ϕ
                wet
              
              -
              
                ϕ
                0
              
            
          
        
      
      )
    
  

wherein dpt is the inner diameter of the tip of the pipette; x is an axial length of a wet solid region; E is an evaporation rate of a solvent; φwet is a volume fraction of a solute (that is, the wire-forming material) in the wet solid region; and φ0 is a volume fraction of the solute in the solution filled in the pipette, and
wherein the wet solid region shows a state in which the solvent is still evaporating from a surface of the wet solid region, even though the wet solid region retains the shape of the wire due to solidification of at least a portion of the solution drawn from the tip of the pipette.