Role of Gas Molecule Complexity in Environmental Electron Microscopy and Photoelectron Yield Spectroscopy

Shanley, TW; Bonnie, F; Scott, J; Toth, M

Role of Gas Molecule Complexity in Environmental Electron Microscopy and Photoelectron Yield Spectroscopy

Shanley, TW Bonnie, F Scott, J Toth, M

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Publication Type:: Journal Article
Citation:: ACS Applied Materials and Interfaces, 2016, 8 (40), pp. 27305 - 27310
Issue Date:: 2016-10-12

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Field	Value	Language
dc.contributor.author	Shanley, TW	en_US
dc.contributor.author	Bonnie, F	en_US
dc.contributor.author	Scott, J	en_US
dc.contributor.author	Toth, M https://orcid.org/0000-0003-1564-4899	en_US
dc.date.available	2020-05-25T19:15:19Z
dc.date.issued	2016-10-12	en_US
dc.identifier.citation	ACS Applied Materials and Interfaces, 2016, 8 (40), pp. 27305 - 27310	en_US
dc.identifier.issn	1944-8244	en_US
dc.identifier.uri	http://hdl.handle.net/10453/54848
dc.description.abstract	© 2016 American Chemical Society. Environmental scanning electron microscopy (ESEM) and environmental photoelectron yield spectroscopy (EPYS) enable electron imaging and spectroscopy of surfaces and interfaces in low-vacuum gaseous environments. The techniques are both appealing and limited by the range of gases that can be used to amplify electrons emitted from a sample and used to form images/spectra. However, to date only H2O and NH3 gases have been identified as highly favorable electron amplification media. Here we demonstrate that ethanol vapor (CH3CH2OH) is superior to both of these and attribute its performance to its molecular complexity and valence orbital structure. Our findings improve the present understanding of what constitutes a favorable electron amplification gas and will help expand the applicability and usefulness of the ESEM and EPYS techniques.	en_US
dc.relation	http://purl.org/au-research/grants/arc/DP140102721
dc.relation.ispartof	ACS Applied Materials and Interfaces	en_US
dc.relation.isbasedon	10.1021/acsami.6b08681	en_US
dc.subject.classification	Nanoscience & Nanotechnology	en_US
dc.title	Role of Gas Molecule Complexity in Environmental Electron Microscopy and Photoelectron Yield Spectroscopy	en_US
dc.type	Journal Article
utslib.citation.volume	40	en_US
utslib.citation.volume	8	en_US
utslib.for	0303 Macromolecular and Materials Chemistry	en_US
utslib.for	0306 Physical Chemistry (incl. Structural)	en_US
utslib.for	03 Chemical Sciences	en_US
utslib.for	09 Engineering	en_US
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
pubs.organisational-group	/University of Technology Sydney/Strength - IBMD - Initiative for Biomedical Devices
pubs.organisational-group	/University of Technology Sydney/Strength - MTEE - Research Centre Materials and Technology for Energy Efficiency
utslib.copyright.status	open_access
pubs.issue	40	en_US
pubs.publication-status	Published	en_US
pubs.volume	8	en_US

Abstract:

© 2016 American Chemical Society. Environmental scanning electron microscopy (ESEM) and environmental photoelectron yield spectroscopy (EPYS) enable electron imaging and spectroscopy of surfaces and interfaces in low-vacuum gaseous environments. The techniques are both appealing and limited by the range of gases that can be used to amplify electrons emitted from a sample and used to form images/spectra. However, to date only H2O and NH3 gases have been identified as highly favorable electron amplification media. Here we demonstrate that ethanol vapor (CH3CH2OH) is superior to both of these and attribute its performance to its molecular complexity and valence orbital structure. Our findings improve the present understanding of what constitutes a favorable electron amplification gas and will help expand the applicability and usefulness of the ESEM and EPYS techniques.

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http://hdl.handle.net/10453/54848