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Two-Stage Growth for Highly Ordered Epitaxial C60 Films on Au(111)

Tully, Alexandra B. ; Greenwood, Rysa ; Na, Meng Xing ; King, Vanessa ; Mårsell, Erik LU ; Niu, Yuran LU ; Golias, Evangelos LU orcid ; Mills, Arthur K. ; Levy, Giorgio and Michiardi, Matteo , et al. (2024) In Journal of Physical Chemistry C 128(42). p.18128-18134
Abstract

As an organic semiconductor and a prototypical acceptor molecule in organic photovoltaics, C60 has broad relevance to the world of organic thin film electronics. Although highly uniform C60 thin films are necessary to conduct spectroscopic analysis of the electronic structure of these C60-based materials, reported C60 films show a relatively low degree of order beyond a monolayer. Here, we develop a generalizable two-stage growth technique that consistently produces single-domain C60 films of controllable thicknesses, using Au(111) as an epitaxially well-matched substrate. We characterize the films using low-energy electron diffraction, low-energy electron microscopy, scanning... (More)

As an organic semiconductor and a prototypical acceptor molecule in organic photovoltaics, C60 has broad relevance to the world of organic thin film electronics. Although highly uniform C60 thin films are necessary to conduct spectroscopic analysis of the electronic structure of these C60-based materials, reported C60 films show a relatively low degree of order beyond a monolayer. Here, we develop a generalizable two-stage growth technique that consistently produces single-domain C60 films of controllable thicknesses, using Au(111) as an epitaxially well-matched substrate. We characterize the films using low-energy electron diffraction, low-energy electron microscopy, scanning tunneling microscopy, and angle-resolved photoemission spectroscopy (ARPES). We report highly oriented epitaxial film growth of C60/Au(111) from 1 monolayer (ML) up to 20 ML films. The high-quality of the C60 thin films enables the direct observation of the electronic dispersion of the HOMO and HOMO-1 bands via ARPES without need for small spot sizes. Our results indicate a path for the growth of organic films on metallic substrates with long-range ordering.

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organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physical Chemistry C
volume
128
issue
42
pages
7 pages
publisher
The American Chemical Society (ACS)
external identifiers
  • scopus:85206836416
ISSN
1932-7447
DOI
10.1021/acs.jpcc.4c05699
language
English
LU publication?
yes
id
cf882ec7-c1e6-4a48-a32f-e41b194f7404
date added to LUP
2024-12-10 14:00:32
date last changed
2025-04-04 13:51:51
@article{cf882ec7-c1e6-4a48-a32f-e41b194f7404,
  abstract     = {{<p>As an organic semiconductor and a prototypical acceptor molecule in organic photovoltaics, C<sub>60</sub> has broad relevance to the world of organic thin film electronics. Although highly uniform C<sub>60</sub> thin films are necessary to conduct spectroscopic analysis of the electronic structure of these C<sub>60</sub>-based materials, reported C<sub>60</sub> films show a relatively low degree of order beyond a monolayer. Here, we develop a generalizable two-stage growth technique that consistently produces single-domain C<sub>60</sub> films of controllable thicknesses, using Au(111) as an epitaxially well-matched substrate. We characterize the films using low-energy electron diffraction, low-energy electron microscopy, scanning tunneling microscopy, and angle-resolved photoemission spectroscopy (ARPES). We report highly oriented epitaxial film growth of C<sub>60</sub>/Au(111) from 1 monolayer (ML) up to 20 ML films. The high-quality of the C<sub>60</sub> thin films enables the direct observation of the electronic dispersion of the HOMO and HOMO-1 bands via ARPES without need for small spot sizes. Our results indicate a path for the growth of organic films on metallic substrates with long-range ordering.</p>}},
  author       = {{Tully, Alexandra B. and Greenwood, Rysa and Na, Meng Xing and King, Vanessa and Mårsell, Erik and Niu, Yuran and Golias, Evangelos and Mills, Arthur K. and Levy, Giorgio and Michiardi, Matteo and Menezes, Darius and Yu, Jiabin and Zhdanovich, Sergey and Damascelli, Andrea and Jones, David J. and Burke, Sarah A.}},
  issn         = {{1932-7447}},
  language     = {{eng}},
  number       = {{42}},
  pages        = {{18128--18134}},
  publisher    = {{The American Chemical Society (ACS)}},
  series       = {{Journal of Physical Chemistry C}},
  title        = {{Two-Stage Growth for Highly Ordered Epitaxial C<sub>60</sub> Films on Au(111)}},
  url          = {{http://dx.doi.org/10.1021/acs.jpcc.4c05699}},
  doi          = {{10.1021/acs.jpcc.4c05699}},
  volume       = {{128}},
  year         = {{2024}},
}