Carbon letters

Korean Carbon Society (한국탄소학회)
권호 표지
DOI QR코드

DOI QR Code

A Study on Electrical Resistivity Behaviors of PAN-based Carbon Nanofiber Webs

  • Park, Soo-Jin (Dept. of Chemistry, Inha Univ.) ;
  • Im, Se-Hyuk (Dept. of Advanced Organic Materials Engineering, Chonbuk National Univ.) ;
  • Rhee, John-M. (Dept. of Advanced Organic Materials Engineering, Chonbuk National Univ.) ;
  • Lee, Young-Seak (Dept. of Fine Chemical Engineering and Chemistry, Chungnam National Univ.)
  • Received : 2007.02.14
  • Accepted : 2007.03.15
  • Published : 2007.03.30
Download PDF
⟨ Previous Next ⟩

Abstract

The influences of various carbonization temperatures on electrical resistivity and morphologies of polyacrylonitrile (PAN)-based nanofiber webs were studied. The diameter size distribution and morphologies of the nanofiber webs were observed by a scanning electron microscope. The electrical resistivity behaviors of the webs were evaluated by a volume resistivity tester. From the results, the volume resistivity of the carbon webs was ranged from $5.1{\times}10^{-1}\;{\Omega}{\cdot}cm$ to $3.0{\times}10^{-2}\;{\Omega}{\cdot}cm$, and the average diameter of the fiber webs was varied in the range of 310 to 160 nm with increasing the carbonization temperature. These results could be explained that the graphitic region of carbon webs was formed after carbonization at high temperatures. And the amorphous structure of polymeric fiber webs was significantly changed to the graphitic crystalline, resulting in shrinking the size of fiber diameters.

Keywords