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- Publisher Website: 10.1088/1361-6528/abc288
- Scopus: eid_2-s2.0-85097313840
- PMID: 33075753
- WOS: WOS:000590398900001
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Article: Strain-engineered black arsenene as a promising gas sensor for detecting SO2 among SF6 decompositions
Title | Strain-engineered black arsenene as a promising gas sensor for detecting SO2 among SF6 decompositions |
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Authors | |
Keywords | black arsenene electric field gas sensor SF6decompositions SO2adsorption |
Issue Date | 2020 |
Publisher | Institute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nano |
Citation | Nanotechnology, 2020, v. 32 n. 6, p. article no. 065501 How to Cite? |
Abstract | The adsorption and gas sensing properties of black arsenene (B-As) regarding sulfur hexafluoride (SF6) and its six decompositions (SOF2, SO2F2, SO2, H2S, HF, and CF4) are investigated using density functional theory combined with the nonequilibrium Green's function. The sensitivity of B-As is evaluated by considering the most stable adsorption configuration, adsorption energy, work function, recovery time, local density of states, and charge transfer between the gas molecules and B-As. It is demonstrated that B-As is more sensitive to the SO2 molecule than to the other decompositions. Additionally, the adsorption strength can be manipulated by controlling the external electric field (E-field). The application of tensile biaxial strain results in more isotropic electrical conductance of B-As, and it can also effectively enhance the response toward SO2. For example, under a 1% equibiaxial tensile strain, a 132% response can be obtained along the zigzag direction. This work suggests the promising prospects of B-As-based gas sensors for detecting SO2 among SF6 decompositions. |
Persistent Identifier | http://hdl.handle.net/10722/300594 |
ISSN | 2023 Impact Factor: 2.9 2023 SCImago Journal Rankings: 0.631 |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | MAO, J | - |
dc.contributor.author | Chen, Y | - |
dc.date.accessioned | 2021-06-18T14:54:14Z | - |
dc.date.available | 2021-06-18T14:54:14Z | - |
dc.date.issued | 2020 | - |
dc.identifier.citation | Nanotechnology, 2020, v. 32 n. 6, p. article no. 065501 | - |
dc.identifier.issn | 0957-4484 | - |
dc.identifier.uri | http://hdl.handle.net/10722/300594 | - |
dc.description.abstract | The adsorption and gas sensing properties of black arsenene (B-As) regarding sulfur hexafluoride (SF6) and its six decompositions (SOF2, SO2F2, SO2, H2S, HF, and CF4) are investigated using density functional theory combined with the nonequilibrium Green's function. The sensitivity of B-As is evaluated by considering the most stable adsorption configuration, adsorption energy, work function, recovery time, local density of states, and charge transfer between the gas molecules and B-As. It is demonstrated that B-As is more sensitive to the SO2 molecule than to the other decompositions. Additionally, the adsorption strength can be manipulated by controlling the external electric field (E-field). The application of tensile biaxial strain results in more isotropic electrical conductance of B-As, and it can also effectively enhance the response toward SO2. For example, under a 1% equibiaxial tensile strain, a 132% response can be obtained along the zigzag direction. This work suggests the promising prospects of B-As-based gas sensors for detecting SO2 among SF6 decompositions. | - |
dc.language | eng | - |
dc.publisher | Institute of Physics Publishing. The Journal's web site is located at http://www.iop.org/journals/nano | - |
dc.relation.ispartof | Nanotechnology | - |
dc.rights | Nanotechnology. Copyright © Institute of Physics Publishing. | - |
dc.rights | This is an author-created, un-copyedited version of an article published in [insert name of journal]. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/[insert DOI]. | - |
dc.subject | black arsenene | - |
dc.subject | electric field | - |
dc.subject | gas sensor | - |
dc.subject | SF6decompositions | - |
dc.subject | SO2adsorption | - |
dc.title | Strain-engineered black arsenene as a promising gas sensor for detecting SO2 among SF6 decompositions | - |
dc.type | Article | - |
dc.identifier.email | Chen, Y: yuechen@hku.hk | - |
dc.identifier.authority | Chen, Y=rp01925 | - |
dc.description.nature | link_to_subscribed_fulltext | - |
dc.identifier.doi | 10.1088/1361-6528/abc288 | - |
dc.identifier.pmid | 33075753 | - |
dc.identifier.scopus | eid_2-s2.0-85097313840 | - |
dc.identifier.hkuros | 322971 | - |
dc.identifier.volume | 32 | - |
dc.identifier.issue | 6 | - |
dc.identifier.spage | article no. 065501 | - |
dc.identifier.epage | article no. 065501 | - |
dc.identifier.isi | WOS:000590398900001 | - |
dc.publisher.place | United Kingdom | - |