Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene
Abstract Highly sensitive and selective gas-sensing materials are critical for applications ranging from environmental monitoring to breath analysis. A rational approach at the nanoscale is urgent to design next-generation sensing devices. In previous work, we unveiled interesting charge transfer ch...
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2024-11-01
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| Series: | Communications Materials |
| Online Access: | https://doi.org/10.1038/s43246-024-00693-z |
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| author | Daniele Perilli Sonia Freddi Michele Zanotti Giovanni Drera Andrea Casotto Stefania Pagliara Luca Schio Luigi Sangaletti Cristiana Di Valentin |
| author_facet | Daniele Perilli Sonia Freddi Michele Zanotti Giovanni Drera Andrea Casotto Stefania Pagliara Luca Schio Luigi Sangaletti Cristiana Di Valentin |
| author_sort | Daniele Perilli |
| collection | DOAJ |
| description | Abstract Highly sensitive and selective gas-sensing materials are critical for applications ranging from environmental monitoring to breath analysis. A rational approach at the nanoscale is urgent to design next-generation sensing devices. In previous work, we unveiled interesting charge transfer channels at the interface between p-type doped graphene and a layer of nickel phthalocyanine (NiPc) molecules, which we believe could be successfully exploited in gas sensing devices. Here, we have investigated the graphene-NiPc interface’s response to adsorbed gas molecules via first-principles calculations. We focused on NH3 and NO2 as test molecules, representing electron donors and acceptors, respectively. Notably, we identified the Ni d z 2 orbital as a key player in mediating the charge transfer and affecting the charge carrier density in graphene. As a proof-of-concept, we then prepared the graphene-NiPc system as a chemiresistor device and exposed it to NH3 and NO2 at room temperature. The sensing tests revealed excellent sensitivity and selectivity, along with a rapid recovery time and a remarkably low detection limit. |
| format | Article |
| id | doaj-art-747573979a404cc39fd2d019671c8f1c |
| institution | Kabale University |
| issn | 2662-4443 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Communications Materials |
| spelling | doaj-art-747573979a404cc39fd2d019671c8f1c2024-11-17T12:38:38ZengNature PortfolioCommunications Materials2662-44432024-11-015111310.1038/s43246-024-00693-zDesign of highly responsive chemiresistor-based sensors by interfacing NiPc with grapheneDaniele Perilli0Sonia Freddi1Michele Zanotti2Giovanni Drera3Andrea Casotto4Stefania Pagliara5Luca Schio6Luigi Sangaletti7Cristiana Di Valentin8Department of Materials Science, University of Milano-BicoccaI-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro CuoreI-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro CuoreDepartment of Materials Science, University of Milano-BicoccaI-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro CuoreI-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro CuoreCNR—Istituto Officina dei Materiali (IOM), Laboratorio TASCI-LAMP and Dipartimento di Matematica e Fisica, Università Cattolica del Sacro CuoreDepartment of Materials Science, University of Milano-BicoccaAbstract Highly sensitive and selective gas-sensing materials are critical for applications ranging from environmental monitoring to breath analysis. A rational approach at the nanoscale is urgent to design next-generation sensing devices. In previous work, we unveiled interesting charge transfer channels at the interface between p-type doped graphene and a layer of nickel phthalocyanine (NiPc) molecules, which we believe could be successfully exploited in gas sensing devices. Here, we have investigated the graphene-NiPc interface’s response to adsorbed gas molecules via first-principles calculations. We focused on NH3 and NO2 as test molecules, representing electron donors and acceptors, respectively. Notably, we identified the Ni d z 2 orbital as a key player in mediating the charge transfer and affecting the charge carrier density in graphene. As a proof-of-concept, we then prepared the graphene-NiPc system as a chemiresistor device and exposed it to NH3 and NO2 at room temperature. The sensing tests revealed excellent sensitivity and selectivity, along with a rapid recovery time and a remarkably low detection limit.https://doi.org/10.1038/s43246-024-00693-z |
| spellingShingle | Daniele Perilli Sonia Freddi Michele Zanotti Giovanni Drera Andrea Casotto Stefania Pagliara Luca Schio Luigi Sangaletti Cristiana Di Valentin Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene Communications Materials |
| title | Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene |
| title_full | Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene |
| title_fullStr | Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene |
| title_full_unstemmed | Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene |
| title_short | Design of highly responsive chemiresistor-based sensors by interfacing NiPc with graphene |
| title_sort | design of highly responsive chemiresistor based sensors by interfacing nipc with graphene |
| url | https://doi.org/10.1038/s43246-024-00693-z |
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