Direct Determination of the Exciton Binding Energy of Conjugated Polymers Using a Scanning Tunneling Microscope

1998 ◽  
Vol 81 (5) ◽  
pp. 1082-1085 ◽  
Author(s):  
S. Alvarado ◽  
P. Seidler ◽  
D. Lidzey ◽  
D. Bradley
Keyword(s):  
Binding Energy ◽  
Conjugated Polymers ◽  
Scanning Tunneling Microscope ◽  
Direct Determination ◽  
Exciton Binding Energy ◽  
Scanning Tunneling ◽  
Tunneling Microscope

scholarly journals Stable Au–C bonds to the substrate for fullerene-based nanostructures

2017 ◽  
Vol 8 ◽  
pp. 1073-1079 ◽  
Author(s):  
Taras Chutora ◽  
Jesús Redondo ◽  
Bruno de la Torre ◽  
Martin Švec ◽  
Pavel Jelínek ◽  
...  
Keyword(s):  
Binding Energy ◽  
Carbon Atom ◽  
Scanning Tunneling Microscope ◽  
Room Temperature ◽  
Vacancy Defect ◽  
Low Energy ◽  
Scanning Tunneling ◽  
Ion Sputtering ◽  
Tunneling Microscope ◽  
Bright Spots

We report on the formation of fullerene-derived nanostructures on Au(111) at room temperature and under UHV conditions. After low-energy ion sputtering of fullerene films deposited on Au(111), bright spots appear at the herringbone corner sites when measured using a scanning tunneling microscope. These features are stable at room temperature against diffusion on the surface. We carry out DFT calculations of fullerene molecules having one missing carbon atom to simulate the vacancies in the molecules resulting from the sputtering process. These modified fullerenes have an adsorption energy on the Au(111) surface that is 1.6 eV higher than that of C60 molecules. This increased binding energy arises from the saturation by the Au surface of the bonds around the molecular vacancy defect. We therefore interpret the observed features as adsorbed fullerene-derived molecules with C vacancies. This provides a pathway for the formation of fullerene-based nanostructures on Au at room temperature.

Determination of Photoswitching Dynamics through Chiral Mapping of Single Molecules Using a Scanning Tunneling Microscope

2010 ◽  
Vol 104 (17) ◽  
Author(s):  
Matthew J. Comstock ◽  
David A. Strubbe ◽  
Luis Berbil-Bautista ◽  
Niv Levy ◽  
Jongweon Cho ◽  
...  
Keyword(s):  
Scanning Tunneling Microscope ◽  
Single Molecules ◽  
Scanning Tunneling ◽  
Tunneling Microscope
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