Temperature-dependent nucleation and capture-zone scaling of C60 on silicon oxide

M. A. Groce; B. R. Conrad; W. G. Cullen; A. Pimpinelli; E. D. Williams; T. L. Einstein

doi:10.1016/j.susc.2011.08.020

Temperature-dependent nucleation and capture-zone scaling of C₆₀ on silicon oxide

M. A. Groce, B. R. Conrad, W. G. Cullen, A. Pimpinelli, E. D. Williams, T. L. Einstein

Houston Methodist

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

16 Scopus citations

Abstract

Submonolayer films of C₆₀ have been deposited on ultrathin SiO₂ films for the purpose of characterizing the initial stages of nucleation and growth as a function of temperature. Capture zones extracted from the initial film morphology were analyzed using both the gamma and generalized Wigner distributions. The calculated critical nucleus size i of the C ₆₀ islands was observed to change over the temperature range 298 K to 483 K. All fitted values of i were found to be between 0 and 1, representing stable monomers and stable dimers, respectively. With increasing temperature of film preparation, we observed i first increasing through this range and then decreasing. We discuss possible explanations of this reentrant-like behavior.

Original language	English (US)
Pages (from-to)	53-56
Number of pages	4
Journal	Surface Science
Volume	606
Issue number	1-2
DOIs	https://doi.org/10.1016/j.susc.2011.08.020
State	Published - Jan 2012

Keywords

Capture-zone distributions
Critical nucleus size
Fullerenes
Models of non-equilibrium phenomena: nucleation and growth
Scanning tunneling microscopy

ASJC Scopus subject areas

Condensed Matter Physics
Surfaces and Interfaces
Surfaces, Coatings and Films
Materials Chemistry

Access to Document

10.1016/j.susc.2011.08.020

Cite this

@article{2dc3a06fa52e4f0abb731439c19565f9,

title = "Temperature-dependent nucleation and capture-zone scaling of C60 on silicon oxide",

abstract = "Submonolayer films of C60 have been deposited on ultrathin SiO2 films for the purpose of characterizing the initial stages of nucleation and growth as a function of temperature. Capture zones extracted from the initial film morphology were analyzed using both the gamma and generalized Wigner distributions. The calculated critical nucleus size i of the C 60 islands was observed to change over the temperature range 298 K to 483 K. All fitted values of i were found to be between 0 and 1, representing stable monomers and stable dimers, respectively. With increasing temperature of film preparation, we observed i first increasing through this range and then decreasing. We discuss possible explanations of this reentrant-like behavior.",

keywords = "Capture-zone distributions, Critical nucleus size, Fullerenes, Models of non-equilibrium phenomena: nucleation and growth, Scanning tunneling microscopy",

author = "Groce, {M. A.} and Conrad, {B. R.} and Cullen, {W. G.} and A. Pimpinelli and Williams, {E. D.} and Einstein, {T. L.}",

note = "Funding Information: We gratefully acknowledge support and SEF support from the NSF MRSEC under grant DMR 05–20471 , as well as research infrastructure support from the University of Maryland CNAM. We thank D.L. Gonz{\'a}lez and J.E. Reutt-Robey for helpful discussions. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.",

year = "2012",

month = jan,

doi = "10.1016/j.susc.2011.08.020",

language = "English (US)",

volume = "606",

pages = "53--56",

journal = "Surface Science",

issn = "0039-6028",

publisher = "Elsevier",

number = "1-2",

}

TY - JOUR

T1 - Temperature-dependent nucleation and capture-zone scaling of C60 on silicon oxide

AU - Groce, M. A.

AU - Conrad, B. R.

AU - Cullen, W. G.

AU - Pimpinelli, A.

AU - Williams, E. D.

AU - Einstein, T. L.

N1 - Funding Information: We gratefully acknowledge support and SEF support from the NSF MRSEC under grant DMR 05–20471 , as well as research infrastructure support from the University of Maryland CNAM. We thank D.L. González and J.E. Reutt-Robey for helpful discussions. Copyright: Copyright 2011 Elsevier B.V., All rights reserved.

PY - 2012/1

Y1 - 2012/1

N2 - Submonolayer films of C60 have been deposited on ultrathin SiO2 films for the purpose of characterizing the initial stages of nucleation and growth as a function of temperature. Capture zones extracted from the initial film morphology were analyzed using both the gamma and generalized Wigner distributions. The calculated critical nucleus size i of the C 60 islands was observed to change over the temperature range 298 K to 483 K. All fitted values of i were found to be between 0 and 1, representing stable monomers and stable dimers, respectively. With increasing temperature of film preparation, we observed i first increasing through this range and then decreasing. We discuss possible explanations of this reentrant-like behavior.

AB - Submonolayer films of C60 have been deposited on ultrathin SiO2 films for the purpose of characterizing the initial stages of nucleation and growth as a function of temperature. Capture zones extracted from the initial film morphology were analyzed using both the gamma and generalized Wigner distributions. The calculated critical nucleus size i of the C 60 islands was observed to change over the temperature range 298 K to 483 K. All fitted values of i were found to be between 0 and 1, representing stable monomers and stable dimers, respectively. With increasing temperature of film preparation, we observed i first increasing through this range and then decreasing. We discuss possible explanations of this reentrant-like behavior.

KW - Capture-zone distributions

KW - Critical nucleus size

KW - Fullerenes

KW - Models of non-equilibrium phenomena: nucleation and growth

KW - Scanning tunneling microscopy

UR - http://www.scopus.com/inward/record.url?scp=80255123802&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=80255123802&partnerID=8YFLogxK

U2 - 10.1016/j.susc.2011.08.020

DO - 10.1016/j.susc.2011.08.020

M3 - Article

AN - SCOPUS:80255123802

SN - 0039-6028

VL - 606

SP - 53

EP - 56

JO - Surface Science

JF - Surface Science

IS - 1-2

ER -