Journal article 963 views 138 downloads
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires
Nano Letters, Volume: 17, Issue: 2, Pages: 687 - 694
Swansea University Authors:
Alex Lord , Steve Wilks
-
PDF | Version of Record
This is an open access article published under a Creative Commons Attribution (CC-BY) License.
Download (4.01MB)
DOI (Published version): 10.1021/acs.nanolett.6b03699
Abstract
Selecting the electrical properties of nanomaterials is essential if their potential as manufacturable devices is to be reached. Here, we show that the addition or removal of native semiconductor material at the edge of a nanocontact can be used to determine the electrical transport properties of me...
Published in: | Nano Letters |
---|---|
ISSN: | 1530-6984 1530-6992 |
Published: |
2017
|
Online Access: |
Check full text
|
URI: | https://cronfa.swan.ac.uk/Record/cronfa31528 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
first_indexed |
2016-12-23T14:49:55Z |
---|---|
last_indexed |
2021-01-15T03:49:55Z |
id |
cronfa31528 |
recordtype |
SURis |
fullrecord |
<?xml version="1.0"?><rfc1807><datestamp>2021-01-14T13:09:18.9542678</datestamp><bib-version>v2</bib-version><id>31528</id><entry>2016-12-23</entry><title>Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires</title><swanseaauthors><author><sid>d547bad707e12f5a9f12d4fcbeea87ed</sid><ORCID>0000-0002-6258-2187</ORCID><firstname>Alex</firstname><surname>Lord</surname><name>Alex Lord</name><active>true</active><ethesisStudent>false</ethesisStudent></author><author><sid>948a547e27d969b7e192b4620688704d</sid><firstname>Steve</firstname><surname>Wilks</surname><name>Steve Wilks</name><active>true</active><ethesisStudent>false</ethesisStudent></author></swanseaauthors><date>2016-12-23</date><deptcode>EEN</deptcode><abstract>Selecting the electrical properties of nanomaterials is essential if their potential as manufacturable devices is to be reached. Here, we show that the addition or removal of native semiconductor material at the edge of a nanocontact can be used to determine the electrical transport properties of metal–nanowire interfaces. While the transport properties of as-grown Au nanocatalyst contacts to semiconductor nanowires are well-studied, there are few techniques that have been explored to modify the electrical behavior. In this work, we use an iterative analytical process that directly correlates multiprobe transport measurements with subsequent aberration-corrected scanning transmission electron microscopy to study the effects of chemical processes that create structural changes at the contact interface edge. A strong metal–support interaction that encapsulates the Au nanocontacts over time, adding ZnO material to the edge region, gives rise to ohmic transport behavior due to the enhanced quantum-mechanical tunneling path. Removal of the extraneous material at the Au–nanowire interface eliminates the edge-tunneling path, producing a range of transport behavior that is dependent on the final interface quality. These results demonstrate chemically driven processes that can be factored into nanowire-device design to select the final properties.</abstract><type>Journal Article</type><journal>Nano Letters</journal><volume>17</volume><journalNumber>2</journalNumber><paginationStart>687</paginationStart><paginationEnd>694</paginationEnd><publisher/><placeOfPublication/><isbnPrint/><isbnElectronic/><issnPrint>1530-6984</issnPrint><issnElectronic>1530-6992</issnElectronic><keywords>Nanowires; electrical contacts; tunneling edge; effect aberration-corrected scanning transmission electron microscopy; strong metal−support interaction; ZnO</keywords><publishedDay>8</publishedDay><publishedMonth>2</publishedMonth><publishedYear>2017</publishedYear><publishedDate>2017-02-08</publishedDate><doi>10.1021/acs.nanolett.6b03699</doi><url/><notes/><college>COLLEGE NANME</college><department>Engineering</department><CollegeCode>COLLEGE CODE</CollegeCode><DepartmentCode>EEN</DepartmentCode><institution>Swansea University</institution><degreesponsorsfunders>RCUK, EP/K504002/1</degreesponsorsfunders><apcterm/><lastEdited>2021-01-14T13:09:18.9542678</lastEdited><Created>2016-12-23T09:52:06.3178327</Created><path><level id="1">Faculty of Science and Engineering</level><level id="2">School of Engineering and Applied Sciences - Uncategorised</level></path><authors><author><firstname>Alex</firstname><surname>Lord</surname><orcid>0000-0002-6258-2187</orcid><order>1</order></author><author><firstname>Quentin M.</firstname><surname>Ramasse</surname><order>2</order></author><author><firstname>Despoina M.</firstname><surname>Kepaptsoglou</surname><order>3</order></author><author><firstname>Jonathan E.</firstname><surname>Evans</surname><order>4</order></author><author><firstname>Philip R.</firstname><surname>Davies</surname><order>5</order></author><author><firstname>Michael B.</firstname><surname>Ward</surname><order>6</order></author><author><firstname>Steve</firstname><surname>Wilks</surname><order>7</order></author></authors><documents><document><filename>0031528-02062017141432.pdf</filename><originalFilename>lord2017.pdf</originalFilename><uploaded>2017-06-02T14:14:32.3730000</uploaded><type>Output</type><contentLength>4200101</contentLength><contentType>application/pdf</contentType><version>Version of Record</version><cronfaStatus>true</cronfaStatus><documentNotes>This is an open access article published under a Creative Commons Attribution (CC-BY) License.</documentNotes><copyrightCorrect>true</copyrightCorrect><language>eng</language><licence>https://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html</licence></document></documents><OutputDurs/></rfc1807> |
spelling |
2021-01-14T13:09:18.9542678 v2 31528 2016-12-23 Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires d547bad707e12f5a9f12d4fcbeea87ed 0000-0002-6258-2187 Alex Lord Alex Lord true false 948a547e27d969b7e192b4620688704d Steve Wilks Steve Wilks true false 2016-12-23 EEN Selecting the electrical properties of nanomaterials is essential if their potential as manufacturable devices is to be reached. Here, we show that the addition or removal of native semiconductor material at the edge of a nanocontact can be used to determine the electrical transport properties of metal–nanowire interfaces. While the transport properties of as-grown Au nanocatalyst contacts to semiconductor nanowires are well-studied, there are few techniques that have been explored to modify the electrical behavior. In this work, we use an iterative analytical process that directly correlates multiprobe transport measurements with subsequent aberration-corrected scanning transmission electron microscopy to study the effects of chemical processes that create structural changes at the contact interface edge. A strong metal–support interaction that encapsulates the Au nanocontacts over time, adding ZnO material to the edge region, gives rise to ohmic transport behavior due to the enhanced quantum-mechanical tunneling path. Removal of the extraneous material at the Au–nanowire interface eliminates the edge-tunneling path, producing a range of transport behavior that is dependent on the final interface quality. These results demonstrate chemically driven processes that can be factored into nanowire-device design to select the final properties. Journal Article Nano Letters 17 2 687 694 1530-6984 1530-6992 Nanowires; electrical contacts; tunneling edge; effect aberration-corrected scanning transmission electron microscopy; strong metal−support interaction; ZnO 8 2 2017 2017-02-08 10.1021/acs.nanolett.6b03699 COLLEGE NANME Engineering COLLEGE CODE EEN Swansea University RCUK, EP/K504002/1 2021-01-14T13:09:18.9542678 2016-12-23T09:52:06.3178327 Faculty of Science and Engineering School of Engineering and Applied Sciences - Uncategorised Alex Lord 0000-0002-6258-2187 1 Quentin M. Ramasse 2 Despoina M. Kepaptsoglou 3 Jonathan E. Evans 4 Philip R. Davies 5 Michael B. Ward 6 Steve Wilks 7 0031528-02062017141432.pdf lord2017.pdf 2017-06-02T14:14:32.3730000 Output 4200101 application/pdf Version of Record true This is an open access article published under a Creative Commons Attribution (CC-BY) License. true eng https://pubs.acs.org/page/policy/authorchoice_ccby_termsofuse.html |
title |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires |
spellingShingle |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires Alex Lord Steve Wilks |
title_short |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires |
title_full |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires |
title_fullStr |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires |
title_full_unstemmed |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires |
title_sort |
Modifying the Interface Edge to Control the Electrical Transport Properties of Nanocontacts to Nanowires |
author_id_str_mv |
d547bad707e12f5a9f12d4fcbeea87ed 948a547e27d969b7e192b4620688704d |
author_id_fullname_str_mv |
d547bad707e12f5a9f12d4fcbeea87ed_***_Alex Lord 948a547e27d969b7e192b4620688704d_***_Steve Wilks |
author |
Alex Lord Steve Wilks |
author2 |
Alex Lord Quentin M. Ramasse Despoina M. Kepaptsoglou Jonathan E. Evans Philip R. Davies Michael B. Ward Steve Wilks |
format |
Journal article |
container_title |
Nano Letters |
container_volume |
17 |
container_issue |
2 |
container_start_page |
687 |
publishDate |
2017 |
institution |
Swansea University |
issn |
1530-6984 1530-6992 |
doi_str_mv |
10.1021/acs.nanolett.6b03699 |
college_str |
Faculty of Science and Engineering |
hierarchytype |
|
hierarchy_top_id |
facultyofscienceandengineering |
hierarchy_top_title |
Faculty of Science and Engineering |
hierarchy_parent_id |
facultyofscienceandengineering |
hierarchy_parent_title |
Faculty of Science and Engineering |
department_str |
School of Engineering and Applied Sciences - Uncategorised{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Engineering and Applied Sciences - Uncategorised |
document_store_str |
1 |
active_str |
0 |
description |
Selecting the electrical properties of nanomaterials is essential if their potential as manufacturable devices is to be reached. Here, we show that the addition or removal of native semiconductor material at the edge of a nanocontact can be used to determine the electrical transport properties of metal–nanowire interfaces. While the transport properties of as-grown Au nanocatalyst contacts to semiconductor nanowires are well-studied, there are few techniques that have been explored to modify the electrical behavior. In this work, we use an iterative analytical process that directly correlates multiprobe transport measurements with subsequent aberration-corrected scanning transmission electron microscopy to study the effects of chemical processes that create structural changes at the contact interface edge. A strong metal–support interaction that encapsulates the Au nanocontacts over time, adding ZnO material to the edge region, gives rise to ohmic transport behavior due to the enhanced quantum-mechanical tunneling path. Removal of the extraneous material at the Au–nanowire interface eliminates the edge-tunneling path, producing a range of transport behavior that is dependent on the final interface quality. These results demonstrate chemically driven processes that can be factored into nanowire-device design to select the final properties. |
published_date |
2017-02-08T03:38:32Z |
_version_ |
1763751716610637824 |
score |
11.021648 |