The nucleation and early stages of layer-by-layer growth of metal organic frameworks on surfaces
Publication Date
September 15, 2015
Creators
Description
High resolution atomic force microscopy (AFM) is used to resolve the evolution of crystallites of a metal organic framework (HKUST-1) grown on Au(111) using a liquid-phase layer-by-layer methodology. The nucleation and faceting of individual crystallites is followed by repeatedly imaging the same sub-micron region after each cycle of growth and we find that the growing surface is terminated by {111} facets leading to the formation of pyramidal nanostructures for [100] oriented crystallites, and triangular [111] islands with typical lateral dimensions of 10s of nanometres. AFM images reveal that crystallites can grow by 5-10 layers in each cycle. The growth rate depends on crystallographic orientation and the morphology of the gold substrate, and we demonstrate that under these conditions the growth is nanocrystalline with a morphology determined by the minimum energy surface.
Collection dates:
June 2013 - June 2014
External URI
Subjects
Subjects (JACS)
Subjects (LC)
Divisions
Faculties, Schools and Departments::University of Nottingham, UK Campus::Faculty of Science::School of Physics and Astronomy
Data type
Images acquired using atomic force microscopy
Grant Number
EP/I011870/1
Data collection method
Atomic force microscopy
Resource languages
English
Publisher
University of Nottingham
Date Issued
September 14, 2015
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README.txt
Description
README
Size
2.43 KB
Format
Text
Checksum (MD5)
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AFM images.zip
Description
Atomic Force Microscopy Images
Size
1.67 GB
Format
Unknown
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