Significant negative differential resistance predicted in scanning tunneling spectroscopy for aC60monolayer on a metal surface

2009 ◽  
Vol 80 (7) ◽  
Author(s):  
X. Q. Shi ◽  
Woei Wu Pai ◽  
X. D. Xiao ◽  
J. I. Cerdá ◽  
R. Q. Zhang ◽  
...  
Keyword(s):  
Metal Surface ◽  
Negative Differential Resistance ◽  
Differential Resistance ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling

scholarly journals Negative differential resistance in the scanning-tunneling spectroscopy of organic molecules

1999 ◽  
Vol 59 (12) ◽  
pp. R7852-R7855 ◽  
Author(s):  
Yongqiang Xue ◽  
Supriyo Datta ◽  
Seunghun Hong ◽  
R. Reifenberger ◽  
Jason Henderson ◽  
...  
Keyword(s):  
Negative Differential Resistance ◽  
Organic Molecules ◽  
Differential Resistance ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling

Scanning Tunneling Spectroscopy of One-Dimensional Surface States on a Metal Surface

1996 ◽  
Vol 76 (22) ◽  
pp. 4179-4182 ◽  
Author(s):  
A. Biedermann ◽  
O. Genser ◽  
W. Hebenstreit ◽  
M. Schmid ◽  
J. Redinger ◽  
...  
Keyword(s):  
Metal Surface ◽  
Surface States ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Scanning Tunneling ◽  
One Dimensional ◽  
Dimensional Surface

Scanning-tunneling spectroscopy on conjugated polymer films

2003 ◽  
Vol 771 ◽  
Author(s):  
M. Kemerink ◽  
S.F. Alvarado ◽  
P.M. Koenraad ◽  
R.A.J. Janssen ◽  
H.W.M. Salemink ◽  
...  
Keyword(s):  
Polymer Films ◽  
Conjugated Polymer ◽  
Three Dimensional ◽  
Field Enhancement ◽  
Direct Consequence ◽  
Scanning Tunneling Spectroscopy ◽  
Tunneling Spectroscopy ◽  
Band Alignment ◽  
Scanning Tunneling ◽  
Order Of Magnitude

AbstractScanning-tunneling spectroscopy experiments have been performed on conjugated polymer films and have been compared to a three-dimensional numerical model for charge injection and transport. It is found that field enhancement near the tip apex leads to significant changes in the injected current, which can amount to more than an order of magnitude, and can even change the polarity of the dominant charge carrier. As a direct consequence, the single-particle band gap and band alignment of the organic material can be directly obtained from tip height-voltage (z-V) curves, provided that the tip has a sufficiently sharp apex.

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