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

Robert H. Temperton; Stephen T. Skowron; Andrew Gibson; Karsten Handrup; James N. O'Shea

doi:10.1016/j.cplett.2020.137309

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

Robert H. Temperton, Stephen T. Skowron, Andrew Gibson, Karsten Handrup, James N. O'Shea

Synchrotron Radiation Research

University of Nottingham

Research output: Contribution to journal › Article › peer-review

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 transfer is observed in the RPES of PCBM.

Original language	English
Article number	137309
Journal	Chemical Physics Letters
Volume	747
DOIs	https://doi.org/10.1016/j.cplett.2020.137309
Publication status	Published - 2020 May 16

Subject classification (UKÄ)

Materials Chemistry
Atom and Molecular Physics and Optics

Free keywords

C60
Organic photovoltaics
PCBM
Resonant photoemission
RPES
Super-Auger decay
Super-spectator decay
X-ray photoelectron spectroscopy
XPS

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10.1016/j.cplett.2020.137309

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

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 transfer is observed in the RPES of PCBM.",

keywords = "C60, Organic photovoltaics, PCBM, Resonant photoemission, RPES, Super-Auger decay, Super-spectator decay, X-ray photoelectron spectroscopy, XPS",

author = "Temperton, {Robert H.} and Skowron, {Stephen T.} and Andrew Gibson and Karsten Handrup and O'Shea, {James N.}",

year = "2020",

month = may,

day = "16",

doi = "10.1016/j.cplett.2020.137309",

language = "English",

volume = "747",

journal = "Chemical Physics Letters",

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T1 - Ultra-fast charge transfer between fullerenes and a gold surface, as prepared by electrospray deposition

AU - Temperton, Robert H.

AU - Skowron, Stephen T.

AU - Gibson, Andrew

AU - Handrup, Karsten

AU - O'Shea, James N.

PY - 2020/5/16

Y1 - 2020/5/16

N2 - 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.

AB - 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.

KW - C60

KW - Organic photovoltaics

KW - PCBM

KW - Resonant photoemission

KW - RPES

KW - Super-Auger decay

KW - Super-spectator decay

KW - X-ray photoelectron spectroscopy

KW - XPS

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U2 - 10.1016/j.cplett.2020.137309

DO - 10.1016/j.cplett.2020.137309

M3 - Article

AN - SCOPUS:85081647048

SN - 0009-2614

VL - 747

JO - Chemical Physics Letters

JF - Chemical Physics Letters

M1 - 137309

ER -

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

Abstract

Subject classification (UKÄ)

Free keywords

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