TY - JOUR
AU1 - Sun, J.P.
AU2 - Zhang, Z.X.
AU3 - Hou, S.M.
AU4 - Zhang, G.M.
AU5 - Gu, Z.N.
AU6 - Zhao, X.Y.
AU7 - Liu, W.M.
AU8 - Xue, Z.Q.
AB - The field emission characteristics of a single micro-bundle of single-walled carbon nanotubes (SWCNTs) were investigated using field emission microscopy (FEM). Fowler–Nordheim plots revealed that the work function of the SWCNTs was reduced with increasing heating temperature, and reached a minimum value around 1000 °C, assuming that the β factor was constant during the heating process. Field emission patterns also demonstrated fine structures that were believed to be images of the cap of a SWCNT, which was in a clean state. The radius of the SWCNT micro-bundle was measured by transmission electron microscopy (TEM), and the β factor was calculated using two empirical formulae. Then, the work function of the SWCNT was determined from the slope, K, of its Fowler–Nordheim plot. The work function values were Φ1=4.76 eV and Φ2=4.88 eV, respectively.
TI - Work function of single-walled carbon nanotubes determined by field emission microscopy
JF - Applied Physics A: Materials Science  Processing
DO - 10.1007/s003390201403
DA - 2002-10-01
UR - https://www.deepdyve.com/lp/springer-journals/work-function-of-single-walled-carbon-nanotubes-determined-by-field-HD75qR2eK0
SP - 479
EP - 483
VL - 75
IS - 4
DP - DeepDyve
ER -