Loading…
Fabrication of Nb-doped ZnO nanowall structure by RF magnetron sputter for enhanced gas-sensing properties
An Nb-doped ZnO nanowall is fabricated by radio-frequency (RF) magnetron sputtering at 250 °C for application in a gas sensor. The fabricated Nb-doped ZnO nanowall is characterized by field emission scanning microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffract...
Saved in:
| Published in: | Journal of alloys and compounds 2017-03, Vol.698, p.77-86 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| cited_by | cdi_FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983 |
|---|---|
| cites | cdi_FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983 |
| container_end_page | 86 |
| container_issue | |
| container_start_page | 77 |
| container_title | Journal of alloys and compounds |
| container_volume | 698 |
| creator | Kim, Seong-Hwan Shim, Gyu-In Choi, Se-Young |
| description | An Nb-doped ZnO nanowall is fabricated by radio-frequency (RF) magnetron sputtering at 250 °C for application in a gas sensor. The fabricated Nb-doped ZnO nanowall is characterized by field emission scanning microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The Nb-doped ZnO nanowall is observed to show a predominant exposed polarized (002) plane. The specific surface area is increased relative to that of the parent ZnO nanowall from 9.2 ± 0.42 m2 g−1 to 9.8 ± 0.52 m2 g−1. The segregation of Nb does not occur in the Nb-doped sample observed by TEM; this indicates that the addition of Nb occurs within the solid-solution limit of the ZnO host lattice. The Nb-doped ZnO nanowall gas sensor presents excellent gas sensing properties for acetone and ethanol gases at a relatively low operating temperature. We confirm the effects of Nb-doping on the ZnO nanowall, such as the exposed (002) plane, specific surface area increase, and electronic structural changes. Nb doping of the ZnO host lattice is a promising method that enhances the acetone and ethanol gas-sensing capacity at a relatively low operating temperature.
[Display omitted]
•Nb-doped ZnO nanowalls were grown by RF magnetron sputtering.•Nb doping increased crystallinity, surface area, & charge carrier concentration.•Doped ZnO showed good sensitivity (resistance changes) to reducing target gases.•Gas sensors of nanowalls showed lower operating temperatures than other sensors did.•Growth & sensing enhancement mechanisms were elucidated. |
| doi_str_mv | 10.1016/j.jallcom.2016.11.377 |
| format | article |
| fullrecord | <record><control><sourceid>proquest_cross</sourceid><recordid>TN_cdi_proquest_journals_1933931843</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><els_id>S0925838816338609</els_id><sourcerecordid>1933931843</sourcerecordid><originalsourceid>FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983</originalsourceid><addsrcrecordid>eNqFkE9LAzEUxIMoWKsfQQh43jWv2T_Zk0ixKhQLohcvIZt9W7O0SU2ySr-9KfXu6fFgfjPMEHINLAcG1e2QD2qz0W6bz9KbA-S8rk_IBETNs6KqmlMyYc2szAQX4pxchDAwxqDhMCHDQrXeaBWNs9T19KXNOrfDjn7YFbXKup9kTUP0o46jR9ru6euCbtXaYvQJCbsxRvS0d56i_VRWJ3atQhbQBmPXdOeTnY8GwyU569Um4NXfnZL3xcPb_Clbrh6f5_fLTBeMx6yrWdnWWAnVg-gBsOlFhS2WnAEvSlb3hWCAtZjNNBRFWXWaddjVLedVC43gU3Jz9E3RXyOGKAc3epsiZerMU21R8KQqjyrtXQgee7nzZqv8XgKTh1nlIP9mlYdZJYBMsybu7shhqvBt0MugDR5qG486ys6Zfxx-AW37hDI</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>1933931843</pqid></control><display><type>article</type><title>Fabrication of Nb-doped ZnO nanowall structure by RF magnetron sputter for enhanced gas-sensing properties</title><source>ScienceDirect Freedom Collection 2022-2024</source><creator>Kim, Seong-Hwan ; Shim, Gyu-In ; Choi, Se-Young</creator><creatorcontrib>Kim, Seong-Hwan ; Shim, Gyu-In ; Choi, Se-Young</creatorcontrib><description>An Nb-doped ZnO nanowall is fabricated by radio-frequency (RF) magnetron sputtering at 250 °C for application in a gas sensor. The fabricated Nb-doped ZnO nanowall is characterized by field emission scanning microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The Nb-doped ZnO nanowall is observed to show a predominant exposed polarized (002) plane. The specific surface area is increased relative to that of the parent ZnO nanowall from 9.2 ± 0.42 m2 g−1 to 9.8 ± 0.52 m2 g−1. The segregation of Nb does not occur in the Nb-doped sample observed by TEM; this indicates that the addition of Nb occurs within the solid-solution limit of the ZnO host lattice. The Nb-doped ZnO nanowall gas sensor presents excellent gas sensing properties for acetone and ethanol gases at a relatively low operating temperature. We confirm the effects of Nb-doping on the ZnO nanowall, such as the exposed (002) plane, specific surface area increase, and electronic structural changes. Nb doping of the ZnO host lattice is a promising method that enhances the acetone and ethanol gas-sensing capacity at a relatively low operating temperature.
[Display omitted]
•Nb-doped ZnO nanowalls were grown by RF magnetron sputtering.•Nb doping increased crystallinity, surface area, & charge carrier concentration.•Doped ZnO showed good sensitivity (resistance changes) to reducing target gases.•Gas sensors of nanowalls showed lower operating temperatures than other sensors did.•Growth & sensing enhancement mechanisms were elucidated.</description><identifier>ISSN: 0925-8388</identifier><identifier>EISSN: 1873-4669</identifier><identifier>DOI: 10.1016/j.jallcom.2016.11.377</identifier><language>eng</language><publisher>Lausanne: Elsevier B.V</publisher><subject>Acetone ; Alloys ; Detection ; Doping ; Emission spectroscopy ; Ethanol ; Exposure ; Field emission ; Gas sensors ; High resolution ; Magnetic properties ; Magnetron sputtering ; Nanofabrications ; Nanostructure ; Nanostructured compounds ; Nanostructured materials ; Operating temperature ; Point defects ; Radio frequency ; Scanning microscopy ; Specific surface ; Surface area ; Surfaces and interfaces ; Transition metal alloys and compounds ; Transmission electron microscopy ; X ray photoelectron spectroscopy ; X-ray diffraction ; Zinc oxide ; Zinc oxides</subject><ispartof>Journal of alloys and compounds, 2017-03, Vol.698, p.77-86</ispartof><rights>2016 Elsevier B.V.</rights><rights>Copyright Elsevier BV Mar 25, 2017</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983</citedby><cites>FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983</cites><orcidid>0000-0001-7018-7964 ; 0000-0003-0864-9050 ; 0000-0003-4529-9029</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>315,786,790,27957,27958</link.rule.ids></links><search><creatorcontrib>Kim, Seong-Hwan</creatorcontrib><creatorcontrib>Shim, Gyu-In</creatorcontrib><creatorcontrib>Choi, Se-Young</creatorcontrib><title>Fabrication of Nb-doped ZnO nanowall structure by RF magnetron sputter for enhanced gas-sensing properties</title><title>Journal of alloys and compounds</title><description>An Nb-doped ZnO nanowall is fabricated by radio-frequency (RF) magnetron sputtering at 250 °C for application in a gas sensor. The fabricated Nb-doped ZnO nanowall is characterized by field emission scanning microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The Nb-doped ZnO nanowall is observed to show a predominant exposed polarized (002) plane. The specific surface area is increased relative to that of the parent ZnO nanowall from 9.2 ± 0.42 m2 g−1 to 9.8 ± 0.52 m2 g−1. The segregation of Nb does not occur in the Nb-doped sample observed by TEM; this indicates that the addition of Nb occurs within the solid-solution limit of the ZnO host lattice. The Nb-doped ZnO nanowall gas sensor presents excellent gas sensing properties for acetone and ethanol gases at a relatively low operating temperature. We confirm the effects of Nb-doping on the ZnO nanowall, such as the exposed (002) plane, specific surface area increase, and electronic structural changes. Nb doping of the ZnO host lattice is a promising method that enhances the acetone and ethanol gas-sensing capacity at a relatively low operating temperature.
[Display omitted]
•Nb-doped ZnO nanowalls were grown by RF magnetron sputtering.•Nb doping increased crystallinity, surface area, & charge carrier concentration.•Doped ZnO showed good sensitivity (resistance changes) to reducing target gases.•Gas sensors of nanowalls showed lower operating temperatures than other sensors did.•Growth & sensing enhancement mechanisms were elucidated.</description><subject>Acetone</subject><subject>Alloys</subject><subject>Detection</subject><subject>Doping</subject><subject>Emission spectroscopy</subject><subject>Ethanol</subject><subject>Exposure</subject><subject>Field emission</subject><subject>Gas sensors</subject><subject>High resolution</subject><subject>Magnetic properties</subject><subject>Magnetron sputtering</subject><subject>Nanofabrications</subject><subject>Nanostructure</subject><subject>Nanostructured compounds</subject><subject>Nanostructured materials</subject><subject>Operating temperature</subject><subject>Point defects</subject><subject>Radio frequency</subject><subject>Scanning microscopy</subject><subject>Specific surface</subject><subject>Surface area</subject><subject>Surfaces and interfaces</subject><subject>Transition metal alloys and compounds</subject><subject>Transmission electron microscopy</subject><subject>X ray photoelectron spectroscopy</subject><subject>X-ray diffraction</subject><subject>Zinc oxide</subject><subject>Zinc oxides</subject><issn>0925-8388</issn><issn>1873-4669</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><recordid>eNqFkE9LAzEUxIMoWKsfQQh43jWv2T_Zk0ixKhQLohcvIZt9W7O0SU2ySr-9KfXu6fFgfjPMEHINLAcG1e2QD2qz0W6bz9KbA-S8rk_IBETNs6KqmlMyYc2szAQX4pxchDAwxqDhMCHDQrXeaBWNs9T19KXNOrfDjn7YFbXKup9kTUP0o46jR9ru6euCbtXaYvQJCbsxRvS0d56i_VRWJ3atQhbQBmPXdOeTnY8GwyU569Um4NXfnZL3xcPb_Clbrh6f5_fLTBeMx6yrWdnWWAnVg-gBsOlFhS2WnAEvSlb3hWCAtZjNNBRFWXWaddjVLedVC43gU3Jz9E3RXyOGKAc3epsiZerMU21R8KQqjyrtXQgee7nzZqv8XgKTh1nlIP9mlYdZJYBMsybu7shhqvBt0MugDR5qG486ys6Zfxx-AW37hDI</recordid><startdate>20170325</startdate><enddate>20170325</enddate><creator>Kim, Seong-Hwan</creator><creator>Shim, Gyu-In</creator><creator>Choi, Se-Young</creator><general>Elsevier B.V</general><general>Elsevier BV</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8BQ</scope><scope>8FD</scope><scope>JG9</scope><orcidid>https://orcid.org/0000-0001-7018-7964</orcidid><orcidid>https://orcid.org/0000-0003-0864-9050</orcidid><orcidid>https://orcid.org/0000-0003-4529-9029</orcidid></search><sort><creationdate>20170325</creationdate><title>Fabrication of Nb-doped ZnO nanowall structure by RF magnetron sputter for enhanced gas-sensing properties</title><author>Kim, Seong-Hwan ; Shim, Gyu-In ; Choi, Se-Young</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Acetone</topic><topic>Alloys</topic><topic>Detection</topic><topic>Doping</topic><topic>Emission spectroscopy</topic><topic>Ethanol</topic><topic>Exposure</topic><topic>Field emission</topic><topic>Gas sensors</topic><topic>High resolution</topic><topic>Magnetic properties</topic><topic>Magnetron sputtering</topic><topic>Nanofabrications</topic><topic>Nanostructure</topic><topic>Nanostructured compounds</topic><topic>Nanostructured materials</topic><topic>Operating temperature</topic><topic>Point defects</topic><topic>Radio frequency</topic><topic>Scanning microscopy</topic><topic>Specific surface</topic><topic>Surface area</topic><topic>Surfaces and interfaces</topic><topic>Transition metal alloys and compounds</topic><topic>Transmission electron microscopy</topic><topic>X ray photoelectron spectroscopy</topic><topic>X-ray diffraction</topic><topic>Zinc oxide</topic><topic>Zinc oxides</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Kim, Seong-Hwan</creatorcontrib><creatorcontrib>Shim, Gyu-In</creatorcontrib><creatorcontrib>Choi, Se-Young</creatorcontrib><collection>CrossRef</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Journal of alloys and compounds</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Kim, Seong-Hwan</au><au>Shim, Gyu-In</au><au>Choi, Se-Young</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Fabrication of Nb-doped ZnO nanowall structure by RF magnetron sputter for enhanced gas-sensing properties</atitle><jtitle>Journal of alloys and compounds</jtitle><date>2017-03-25</date><risdate>2017</risdate><volume>698</volume><spage>77</spage><epage>86</epage><pages>77-86</pages><issn>0925-8388</issn><eissn>1873-4669</eissn><abstract>An Nb-doped ZnO nanowall is fabricated by radio-frequency (RF) magnetron sputtering at 250 °C for application in a gas sensor. The fabricated Nb-doped ZnO nanowall is characterized by field emission scanning microscopy (FESEM), high-resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The Nb-doped ZnO nanowall is observed to show a predominant exposed polarized (002) plane. The specific surface area is increased relative to that of the parent ZnO nanowall from 9.2 ± 0.42 m2 g−1 to 9.8 ± 0.52 m2 g−1. The segregation of Nb does not occur in the Nb-doped sample observed by TEM; this indicates that the addition of Nb occurs within the solid-solution limit of the ZnO host lattice. The Nb-doped ZnO nanowall gas sensor presents excellent gas sensing properties for acetone and ethanol gases at a relatively low operating temperature. We confirm the effects of Nb-doping on the ZnO nanowall, such as the exposed (002) plane, specific surface area increase, and electronic structural changes. Nb doping of the ZnO host lattice is a promising method that enhances the acetone and ethanol gas-sensing capacity at a relatively low operating temperature.
[Display omitted]
•Nb-doped ZnO nanowalls were grown by RF magnetron sputtering.•Nb doping increased crystallinity, surface area, & charge carrier concentration.•Doped ZnO showed good sensitivity (resistance changes) to reducing target gases.•Gas sensors of nanowalls showed lower operating temperatures than other sensors did.•Growth & sensing enhancement mechanisms were elucidated.</abstract><cop>Lausanne</cop><pub>Elsevier B.V</pub><doi>10.1016/j.jallcom.2016.11.377</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0001-7018-7964</orcidid><orcidid>https://orcid.org/0000-0003-0864-9050</orcidid><orcidid>https://orcid.org/0000-0003-4529-9029</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0925-8388 |
| ispartof | Journal of alloys and compounds, 2017-03, Vol.698, p.77-86 |
| issn | 0925-8388 1873-4669 |
| language | eng |
| recordid | cdi_proquest_journals_1933931843 |
| source | ScienceDirect Freedom Collection 2022-2024 |
| subjects | Acetone Alloys Detection Doping Emission spectroscopy Ethanol Exposure Field emission Gas sensors High resolution Magnetic properties Magnetron sputtering Nanofabrications Nanostructure Nanostructured compounds Nanostructured materials Operating temperature Point defects Radio frequency Scanning microscopy Specific surface Surface area Surfaces and interfaces Transition metal alloys and compounds Transmission electron microscopy X ray photoelectron spectroscopy X-ray diffraction Zinc oxide Zinc oxides |
| title | Fabrication of Nb-doped ZnO nanowall structure by RF magnetron sputter for enhanced gas-sensing properties |
| url | http://sfxeu10.hosted.exlibrisgroup.com/loughborough?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2024-09-22T05%3A47%3A07IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_cross&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Fabrication%20of%20Nb-doped%20ZnO%20nanowall%20structure%20by%20RF%20magnetron%20sputter%20for%20enhanced%20gas-sensing%20properties&rft.jtitle=Journal%20of%20alloys%20and%20compounds&rft.au=Kim,%20Seong-Hwan&rft.date=2017-03-25&rft.volume=698&rft.spage=77&rft.epage=86&rft.pages=77-86&rft.issn=0925-8388&rft.eissn=1873-4669&rft_id=info:doi/10.1016/j.jallcom.2016.11.377&rft_dat=%3Cproquest_cross%3E1933931843%3C/proquest_cross%3E%3Cgrp_id%3Ecdi_FETCH-LOGICAL-c403t-d705b7e68af18f11e9f86ebe530134507f4801e7822c14456dc0ded7b336b1983%3C/grp_id%3E%3Coa%3E%3C/oa%3E%3Curl%3E%3C/url%3E&rft_id=info:oai/&rft_pqid=1933931843&rft_id=info:pmid/&rfr_iscdi=true |