n–n type In2O3@-WO3 heterojunction nanowires: enhanced NO2 gas sensing characteristics for environmental monitoring
Solvothermal synthesis of 1D n -In 2 O 3 @ n -WO 3 heterojunction nanowires (HNWs) and their NO 2 gas sensing characteristics are reported. The n -In 2 O 3 @ n -WO 3 HNWs have been well-characterised using XRD, Raman spectroscopy, XPS, SEM and HRTEM analyses. The NO 2 sensing performance of n -In 2...
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| Veröffentlicht in: | Mikrochimica acta (1966) 2024-11, Vol.191 (11), p.645, Article 645 |
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| container_issue | 11 |
| container_start_page | 645 |
| container_title | Mikrochimica acta (1966) |
| container_volume | 191 |
| creator | Vishnuraj, Ramakrishnan Unnathpadi, Rajesh Rangarajan, Murali Pullithadathil, Biji |
| description | Solvothermal synthesis of 1D
n
-In
2
O
3
@
n
-WO
3
heterojunction nanowires (HNWs) and their NO
2
gas sensing characteristics are reported. The
n
-In
2
O
3
@
n
-WO
3
HNWs have been well-characterised using XRD, Raman spectroscopy, XPS, SEM and HRTEM analyses. The NO
2
sensing performance of
n
-In
2
O
3
@
n
-WO
3
HNWs showed superior performance compared with pristine WO
3
NWs. Due to the distinctive configuration of WO
3
-In
2
O
3
heterojunctions, the
n
-In
2
O
3
@
n
-WO
3
HNWs demonstrated remarkable sensitivity reaching 182% in response towards 500 ppb of NO
2
gas at operating temperature of 200°C which is nearly 3.5 times greater than the response observed with pristine WO
3
(50%). Moreover, the
n
-In
2
O
3
@
n
-WO
3
HNWs also exhibited fast response (8–13 s)/recovery (54–62 s) time characteristics. A plausible sensing mechanism has been discussed. The enhancement in sensor characteristics shows that
n
-In
2
O
3
@
n
-WO
3
HNWs could serve as a promising material for high-performance NO
2
gas sensors for real-time environmental monitoring applications. This work could provide new understandings of the sensing mechanism of
n
-In
2
O
3
@
n
-WO
3
–based heterojunction nanowires, which can be applied to the design of novel
n–n
type MOS heterojunction materials for the application of low-temperature real-time high-performance NO
2
sensors.
Graphical Abstract |
| doi_str_mv | 10.1007/s00604-024-06693-7 |
| format | Article |
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n
-In
2
O
3
@
n
-WO
3
heterojunction nanowires (HNWs) and their NO
2
gas sensing characteristics are reported. The
n
-In
2
O
3
@
n
-WO
3
HNWs have been well-characterised using XRD, Raman spectroscopy, XPS, SEM and HRTEM analyses. The NO
2
sensing performance of
n
-In
2
O
3
@
n
-WO
3
HNWs showed superior performance compared with pristine WO
3
NWs. Due to the distinctive configuration of WO
3
-In
2
O
3
heterojunctions, the
n
-In
2
O
3
@
n
-WO
3
HNWs demonstrated remarkable sensitivity reaching 182% in response towards 500 ppb of NO
2
gas at operating temperature of 200°C which is nearly 3.5 times greater than the response observed with pristine WO
3
(50%). Moreover, the
n
-In
2
O
3
@
n
-WO
3
HNWs also exhibited fast response (8–13 s)/recovery (54–62 s) time characteristics. A plausible sensing mechanism has been discussed. The enhancement in sensor characteristics shows that
n
-In
2
O
3
@
n
-WO
3
HNWs could serve as a promising material for high-performance NO
2
gas sensors for real-time environmental monitoring applications. This work could provide new understandings of the sensing mechanism of
n
-In
2
O
3
@
n
-WO
3
–based heterojunction nanowires, which can be applied to the design of novel
n–n
type MOS heterojunction materials for the application of low-temperature real-time high-performance NO
2
sensors.
Graphical Abstract</description><identifier>ISSN: 0026-3672</identifier><identifier>ISSN: 1436-5073</identifier><identifier>EISSN: 1436-5073</identifier><identifier>DOI: 10.1007/s00604-024-06693-7</identifier><language>eng</language><publisher>Vienna: Springer Vienna</publisher><subject>Analytical Chemistry ; Characterization and Evaluation of Materials ; Chemistry ; Chemistry and Materials Science ; Configuration management ; Environmental monitoring ; Gas sensors ; Heterojunctions ; Indium oxides ; Low temperature ; Microengineering ; Nanochemistry ; Nanotechnology ; Nanowires ; Nitrogen dioxide ; Operating temperature ; Raman spectroscopy ; Real time ; Sensors ; X ray photoelectron spectroscopy</subject><ispartof>Mikrochimica acta (1966), 2024-11, Vol.191 (11), p.645, Article 645</ispartof><rights>The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.</rights><rights>2024. The Author(s), under exclusive licence to Springer-Verlag GmbH Austria, part of Springer Nature.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c233t-7ed70bafae611371174b7d51480b4cd0de02788d5cc1d67be33195645b88c8b33</cites><orcidid>0000-0002-5211-7986</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1007/s00604-024-06693-7$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1007/s00604-024-06693-7$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,776,780,27901,27902,41464,42533,51294</link.rule.ids></links><search><creatorcontrib>Vishnuraj, Ramakrishnan</creatorcontrib><creatorcontrib>Unnathpadi, Rajesh</creatorcontrib><creatorcontrib>Rangarajan, Murali</creatorcontrib><creatorcontrib>Pullithadathil, Biji</creatorcontrib><title>n–n type In2O3@-WO3 heterojunction nanowires: enhanced NO2 gas sensing characteristics for environmental monitoring</title><title>Mikrochimica acta (1966)</title><addtitle>Microchim Acta</addtitle><description>Solvothermal synthesis of 1D
n
-In
2
O
3
@
n
-WO
3
heterojunction nanowires (HNWs) and their NO
2
gas sensing characteristics are reported. The
n
-In
2
O
3
@
n
-WO
3
HNWs have been well-characterised using XRD, Raman spectroscopy, XPS, SEM and HRTEM analyses. The NO
2
sensing performance of
n
-In
2
O
3
@
n
-WO
3
HNWs showed superior performance compared with pristine WO
3
NWs. Due to the distinctive configuration of WO
3
-In
2
O
3
heterojunctions, the
n
-In
2
O
3
@
n
-WO
3
HNWs demonstrated remarkable sensitivity reaching 182% in response towards 500 ppb of NO
2
gas at operating temperature of 200°C which is nearly 3.5 times greater than the response observed with pristine WO
3
(50%). Moreover, the
n
-In
2
O
3
@
n
-WO
3
HNWs also exhibited fast response (8–13 s)/recovery (54–62 s) time characteristics. A plausible sensing mechanism has been discussed. The enhancement in sensor characteristics shows that
n
-In
2
O
3
@
n
-WO
3
HNWs could serve as a promising material for high-performance NO
2
gas sensors for real-time environmental monitoring applications. This work could provide new understandings of the sensing mechanism of
n
-In
2
O
3
@
n
-WO
3
–based heterojunction nanowires, which can be applied to the design of novel
n–n
type MOS heterojunction materials for the application of low-temperature real-time high-performance NO
2
sensors.
Graphical Abstract</description><subject>Analytical Chemistry</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry</subject><subject>Chemistry and Materials Science</subject><subject>Configuration management</subject><subject>Environmental monitoring</subject><subject>Gas sensors</subject><subject>Heterojunctions</subject><subject>Indium oxides</subject><subject>Low temperature</subject><subject>Microengineering</subject><subject>Nanochemistry</subject><subject>Nanotechnology</subject><subject>Nanowires</subject><subject>Nitrogen dioxide</subject><subject>Operating temperature</subject><subject>Raman spectroscopy</subject><subject>Real time</subject><subject>Sensors</subject><subject>X ray photoelectron spectroscopy</subject><issn>0026-3672</issn><issn>1436-5073</issn><issn>1436-5073</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2024</creationdate><recordtype>article</recordtype><recordid>eNp9kctKAzEUhoMoWC8v4Crgxs3oSTKTTF0p4g3EbhSXIZM5bVPapCYzijvfwTf0SUytILgQcsjm-3_O4SPkgMExA1AnCUBCWQDPI-VQFGqDDFgpZFGBEptkAMBlIaTi22QnpRkAU5KXA9L7z_cPT7u3JdJbz0firHgaCTrFDmOY9d52LnjqjQ-vLmI6peinxlts6f2I04lJNKFPzk-onZpobI651Dmb6DjEDL-4GPwCfWfmdBG860LM8B7ZGpt5wv2ff5c8Xl0-XNwUd6Pr24vzu8JyIbpCYaugMWODkjGhGFNlo9qKlTU0pW2hReCqrtvKWtZK1aAQbFjJsmrq2taNELvkaN27jOG5x9TphUsW53PjMfRJC8Z4LUEoldHDP-gs9NHn7VZUfqDqMlN8TdkYUoo41svoFia-aQZ6ZUKvTehsQn-b0KtqsQ6l5ep4jL_V_6S-AC16jMw</recordid><startdate>20241101</startdate><enddate>20241101</enddate><creator>Vishnuraj, Ramakrishnan</creator><creator>Unnathpadi, Rajesh</creator><creator>Rangarajan, Murali</creator><creator>Pullithadathil, Biji</creator><general>Springer Vienna</general><general>Springer Nature B.V</general><scope>AAYXX</scope><scope>CITATION</scope><scope>K9.</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-5211-7986</orcidid></search><sort><creationdate>20241101</creationdate><title>n–n type In2O3@-WO3 heterojunction nanowires: enhanced NO2 gas sensing characteristics for environmental monitoring</title><author>Vishnuraj, Ramakrishnan ; Unnathpadi, Rajesh ; Rangarajan, Murali ; Pullithadathil, Biji</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c233t-7ed70bafae611371174b7d51480b4cd0de02788d5cc1d67be33195645b88c8b33</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2024</creationdate><topic>Analytical Chemistry</topic><topic>Characterization and Evaluation of Materials</topic><topic>Chemistry</topic><topic>Chemistry and Materials Science</topic><topic>Configuration management</topic><topic>Environmental monitoring</topic><topic>Gas sensors</topic><topic>Heterojunctions</topic><topic>Indium oxides</topic><topic>Low temperature</topic><topic>Microengineering</topic><topic>Nanochemistry</topic><topic>Nanotechnology</topic><topic>Nanowires</topic><topic>Nitrogen dioxide</topic><topic>Operating temperature</topic><topic>Raman spectroscopy</topic><topic>Real time</topic><topic>Sensors</topic><topic>X ray photoelectron spectroscopy</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Vishnuraj, Ramakrishnan</creatorcontrib><creatorcontrib>Unnathpadi, Rajesh</creatorcontrib><creatorcontrib>Rangarajan, Murali</creatorcontrib><creatorcontrib>Pullithadathil, Biji</creatorcontrib><collection>CrossRef</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>MEDLINE - Academic</collection><jtitle>Mikrochimica acta (1966)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Vishnuraj, Ramakrishnan</au><au>Unnathpadi, Rajesh</au><au>Rangarajan, Murali</au><au>Pullithadathil, Biji</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>n–n type In2O3@-WO3 heterojunction nanowires: enhanced NO2 gas sensing characteristics for environmental monitoring</atitle><jtitle>Mikrochimica acta (1966)</jtitle><stitle>Microchim Acta</stitle><date>2024-11-01</date><risdate>2024</risdate><volume>191</volume><issue>11</issue><spage>645</spage><pages>645-</pages><artnum>645</artnum><issn>0026-3672</issn><issn>1436-5073</issn><eissn>1436-5073</eissn><abstract>Solvothermal synthesis of 1D
n
-In
2
O
3
@
n
-WO
3
heterojunction nanowires (HNWs) and their NO
2
gas sensing characteristics are reported. The
n
-In
2
O
3
@
n
-WO
3
HNWs have been well-characterised using XRD, Raman spectroscopy, XPS, SEM and HRTEM analyses. The NO
2
sensing performance of
n
-In
2
O
3
@
n
-WO
3
HNWs showed superior performance compared with pristine WO
3
NWs. Due to the distinctive configuration of WO
3
-In
2
O
3
heterojunctions, the
n
-In
2
O
3
@
n
-WO
3
HNWs demonstrated remarkable sensitivity reaching 182% in response towards 500 ppb of NO
2
gas at operating temperature of 200°C which is nearly 3.5 times greater than the response observed with pristine WO
3
(50%). Moreover, the
n
-In
2
O
3
@
n
-WO
3
HNWs also exhibited fast response (8–13 s)/recovery (54–62 s) time characteristics. A plausible sensing mechanism has been discussed. The enhancement in sensor characteristics shows that
n
-In
2
O
3
@
n
-WO
3
HNWs could serve as a promising material for high-performance NO
2
gas sensors for real-time environmental monitoring applications. This work could provide new understandings of the sensing mechanism of
n
-In
2
O
3
@
n
-WO
3
–based heterojunction nanowires, which can be applied to the design of novel
n–n
type MOS heterojunction materials for the application of low-temperature real-time high-performance NO
2
sensors.
Graphical Abstract</abstract><cop>Vienna</cop><pub>Springer Vienna</pub><doi>10.1007/s00604-024-06693-7</doi><orcidid>https://orcid.org/0000-0002-5211-7986</orcidid></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0026-3672 |
| ispartof | Mikrochimica acta (1966), 2024-11, Vol.191 (11), p.645, Article 645 |
| issn | 0026-3672 1436-5073 1436-5073 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_3112860377 |
| source | SpringerLink Journals - AutoHoldings |
| subjects | Analytical Chemistry Characterization and Evaluation of Materials Chemistry Chemistry and Materials Science Configuration management Environmental monitoring Gas sensors Heterojunctions Indium oxides Low temperature Microengineering Nanochemistry Nanotechnology Nanowires Nitrogen dioxide Operating temperature Raman spectroscopy Real time Sensors X ray photoelectron spectroscopy |
| title | n–n type In2O3@-WO3 heterojunction nanowires: enhanced NO2 gas sensing characteristics for environmental monitoring |
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