Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/75533
Title: Adsorption-induced desorption of benzene on Si(111)-7 × 7 by substrate-mediated electronic interactions
Authors: Yong, K.S.
Yang, S.-W.
Zhang, Y.P. 
Wu, P.
Xu, G.Q. 
Issue Date: 1-Apr-2008
Citation: Yong, K.S., Yang, S.-W., Zhang, Y.P., Wu, P., Xu, G.Q. (2008-04-01). Adsorption-induced desorption of benzene on Si(111)-7 × 7 by substrate-mediated electronic interactions. Langmuir 24 (7) : 3289-3293. ScholarBank@NUS Repository.
Abstract: The process of benzene adsorption on an adjacent adatom-rest atom pair on Si(111)-7 × 7 at room temperature was studied using in-situ scanning tunneling microscopy (STM). Both adsorption and desorption of benzene were observed to take place mostly at adjacent sites during the process. DFT calculation results show that the bond length between the rest atom and the carbon atom in a pre-adsorbed benzene molecule increases due to the charge transfer from a neighboring rest atom in response to an approaching benzene molecule. Such increase in the bond length, when coupled resonantly to the C-Si thermal vibration, could result in bond breakage and desorption of the adsorbate. The studies provide evidence for the desorption of a chemisorbed benzene caused by an adsorbing benzene at a neighboring site through a substrate-mediated electronic interaction. © 2008 American Chemical Society.
Source Title: Langmuir
URI: http://scholarbank.nus.edu.sg/handle/10635/75533
ISSN: 07437463
Appears in Collections:Staff Publications

Show full item record
Files in This Item:
There are no files associated with this item.

SCOPUSTM   
Citations

9
checked on Feb 26, 2018

WEB OF SCIENCETM
Citations

7
checked on Apr 30, 2018

Page view(s)

25
checked on May 4, 2018

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.