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Ultra-fast charge transfer between fullerenes and a gold surface, as prepared by electrospray deposition

Temperton, Robert H. ; Skowron, Stephen T. ; Gibson, Andrew ; Handrup, Karsten LU and O'Shea, James N. (2020) In Chemical Physics Letters 747.
Abstract

Monolayers of C60 and the functionalised fullerene phenyl-C61-butyric acid methyl ester (PCBM) have been prepared on Au(1 1 1) by in situ electrospray deposition. The observation of super-spectator/super-Auger decay in resonant photoemission spectroscopy (RPES) of C60 confirms monolayers prepared using electrospray undergo ultra-fast charge transfer as per previous studies of C60 monolayers on Au(1 1 1) prepared by sublimation. For PCBM, X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) show the lowest unoccupied molecular orbital (LUMO) of the molecule overlaps the Fermi-level of the metal surface. Despite this, no evidence of ultra-fast charge... (More)

Monolayers of C60 and the functionalised fullerene phenyl-C61-butyric acid methyl ester (PCBM) have been prepared on Au(1 1 1) by in situ electrospray deposition. The observation of super-spectator/super-Auger decay in resonant photoemission spectroscopy (RPES) of C60 confirms monolayers prepared using electrospray undergo ultra-fast charge transfer as per previous studies of C60 monolayers on Au(1 1 1) prepared by sublimation. For PCBM, X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) show the lowest unoccupied molecular orbital (LUMO) of the molecule overlaps the Fermi-level of the metal surface. Despite this, no evidence of ultra-fast charge transfer is observed in the RPES of PCBM.

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publication status
published
subject
keywords
C60, Organic photovoltaics, PCBM, Resonant photoemission, RPES, Super-Auger decay, Super-spectator decay, X-ray photoelectron spectroscopy, XPS
in
Chemical Physics Letters
volume
747
article number
137309
publisher
Elsevier
external identifiers
  • scopus:85081647048
ISSN
0009-2614
DOI
10.1016/j.cplett.2020.137309
language
English
LU publication?
yes
id
2e1e32d4-d38c-40e8-a9bc-84817281930a
date added to LUP
2020-03-30 16:09:15
date last changed
2020-04-02 02:49:46
@article{2e1e32d4-d38c-40e8-a9bc-84817281930a,
  abstract     = {<p>Monolayers of C<sub>60</sub> and the functionalised fullerene phenyl-C<sub>61</sub>-butyric acid methyl ester (PCBM) have been prepared on Au(1 1 1) by in situ electrospray deposition. The observation of super-spectator/super-Auger decay in resonant photoemission spectroscopy (RPES) of C<sub>60</sub> confirms monolayers prepared using electrospray undergo ultra-fast charge transfer as per previous studies of C<sub>60</sub> monolayers on Au(1 1 1) prepared by sublimation. For PCBM, X-ray photoelectron spectroscopy (XPS) and near-edge X-ray absorption fine structure (NEXAFS) show the lowest unoccupied molecular orbital (LUMO) of the molecule overlaps the Fermi-level of the metal surface. Despite this, no evidence of ultra-fast charge transfer is observed in the RPES of PCBM.</p>},
  author       = {Temperton, Robert H. and Skowron, Stephen T. and Gibson, Andrew and Handrup, Karsten and O'Shea, James N.},
  issn         = {0009-2614},
  language     = {eng},
  month        = {05},
  publisher    = {Elsevier},
  series       = {Chemical Physics Letters},
  title        = {Ultra-fast charge transfer between fullerenes and a gold surface, as prepared by electrospray deposition},
  url          = {http://dx.doi.org/10.1016/j.cplett.2020.137309},
  doi          = {10.1016/j.cplett.2020.137309},
  volume       = {747},
  year         = {2020},
}