Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy

Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy

http://www.aaas.org/

Saved in:
Bibliographic Details
Main Authors: Ganapathy, R., Buckley, M.R., Gerbode, S.J., Cohen, I.
Format: article biblioteca
Language:English
Published: AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA 2010-01-22
Subjects:THIN-FILM GROWTH, NUCLEATION, CRYSTALS, NANOSTRUCTURES, DIFFUSION, PARTICLES, DYNAMICS, SURFACES, VIEW,
Online Access:https://hdl.handle.net/1813/23435
Tags: Add Tag
No Tags, Be the first to tag this record!
id dig-cornell-us-181323435
record_format koha
spelling dig-cornell-us-1813234352015-07-08T06:13:09Z Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy Ganapathy, R. Buckley, M.R. Gerbode, S.J. Cohen, I. THIN-FILM GROWTH NUCLEATION CRYSTALS NANOSTRUCTURES DIFFUSION PARTICLES DYNAMICS SURFACES VIEW http://www.aaas.org/ Epitaxial growth, a bottom-up self-assembly process for creating surface nano-and microstructures, has been extensively studied in the context of atoms. This process, however, is also a promising route to self-assembly of nanometer- and micrometer-scale particles into microstructures that have numerous technological applications. To determine whether atomic epitaxial growth laws are applicable to the epitaxy of larger particles with attractive interactions, we investigated the nucleation and growth dynamics of colloidal crystal films with single-particle resolution. We show quantitatively that colloidal epitaxy obeys the same two-dimensional island nucleation and growth laws that govern atomic epitaxy. However, we found that in colloidal epitaxy, step-edge and corner barriers that are responsible for film morphology have a diffusive origin. This diffusive mechanism suggests new routes toward controlling film morphology during epitaxy. We thank L. Ristroph, J. Savage, T. Arias, J. Machta, and A. Woll for useful discussions. We would like to especially thank J. Sethna for helping us set up the numerical calculations for residence times. This research was supported by grants from the NSF Division of Materials Research, the Cornell NanoScale Science and Technology Facility, and in part by award no. KUS-C1-018-02 from King Abdullah University of Science and Technology (KAUST). 2011-07-28T16:05:01Z 2011-07-28T16:05:01Z 2010-01-22 article SCIENCE, 327 (5964),445-448, JAN 22 2010 0036-8075 DOI: 10.1126/science.1179947    IDS Number: 546BS https://hdl.handle.net/1813/23435 en application/pdf AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
institution CORNELL US
collection DSpace
country Estados Unidos
countrycode US
component Bibliográfico
access En linea
databasecode dig-cornell-us
tag biblioteca
region America del Norte
libraryname Biblioteca de Cornell
language English
topic THIN-FILM GROWTH
NUCLEATION
CRYSTALS
NANOSTRUCTURES
DIFFUSION
PARTICLES
DYNAMICS
SURFACES
VIEW
THIN-FILM GROWTH
NUCLEATION
CRYSTALS
NANOSTRUCTURES
DIFFUSION
PARTICLES
DYNAMICS
SURFACES
VIEW
spellingShingle THIN-FILM GROWTH
NUCLEATION
CRYSTALS
NANOSTRUCTURES
DIFFUSION
PARTICLES
DYNAMICS
SURFACES
VIEW
THIN-FILM GROWTH
NUCLEATION
CRYSTALS
NANOSTRUCTURES
DIFFUSION
PARTICLES
DYNAMICS
SURFACES
VIEW
Ganapathy, R.
Buckley, M.R.
Gerbode, S.J.
Cohen, I.
Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy
description http://www.aaas.org/
format article
topic_facet THIN-FILM GROWTH
NUCLEATION
CRYSTALS
NANOSTRUCTURES
DIFFUSION
PARTICLES
DYNAMICS
SURFACES
VIEW
author Ganapathy, R.
Buckley, M.R.
Gerbode, S.J.
Cohen, I.
author_facet Ganapathy, R.
Buckley, M.R.
Gerbode, S.J.
Cohen, I.
author_sort Ganapathy, R.
title Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy
title_short Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy
title_full Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy
title_fullStr Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy
title_full_unstemmed Direct Measurements of Island Growth and Step-Edge Barriers in Colloidal Epitaxy
title_sort direct measurements of island growth and step-edge barriers in colloidal epitaxy
publisher AMER ASSOC ADVANCEMENT SCIENCE, 1200 NEW YORK AVE, NW, WASHINGTON, DC 20005 USA
publishDate 2010-01-22
url https://hdl.handle.net/1813/23435
work_keys_str_mv AT ganapathyr directmeasurementsofislandgrowthandstepedgebarriersincolloidalepitaxy
AT buckleymr directmeasurementsofislandgrowthandstepedgebarriersincolloidalepitaxy
AT gerbodesj directmeasurementsofislandgrowthandstepedgebarriersincolloidalepitaxy
AT coheni directmeasurementsofislandgrowthandstepedgebarriersincolloidalepitaxy
_version_ 1762930984211185665

Similar Items