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Sensing of explosive vapor by hybrid perovskites : effect of dimensionality
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dc.contributor.author | Harwell, Jonathon Robert | |
dc.contributor.author | Glackin, James Michael Edward | |
dc.contributor.author | Davis, N. J. L. K. | |
dc.contributor.author | Gillanders, Ross Neil | |
dc.contributor.author | Credington, D. | |
dc.contributor.author | Turnbull, Graham | |
dc.contributor.author | Samuel, Ifor David William | |
dc.date.accessioned | 2020-07-15T15:30:07Z | |
dc.date.available | 2020-07-15T15:30:07Z | |
dc.date.issued | 2020-07-10 | |
dc.identifier.citation | Harwell , J R , Glackin , J M E , Davis , N J L K , Gillanders , R N , Credington , D , Turnbull , G & Samuel , I D W 2020 , ' Sensing of explosive vapor by hybrid perovskites : effect of dimensionality ' , APL Materials , vol. 8 , 0771106 . https://doi.org/10.1063/5.0011229 | en |
dc.identifier.issn | 2166-532X | |
dc.identifier.other | PURE: 268491064 | |
dc.identifier.other | PURE UUID: a5eaf69e-1089-4192-94cc-7f25f1b5bae1 | |
dc.identifier.other | ORCID: /0000-0002-8825-3234/work/77524804 | |
dc.identifier.other | WOS: 000551835000001 | |
dc.identifier.other | Scopus: 85090166031 | |
dc.identifier.other | ORCID: /0000-0002-2508-1965/work/90952148 | |
dc.identifier.uri | https://hdl.handle.net/10023/20258 | |
dc.description | Funding: Engineering and Physical Sciences Research Council under grants EP/T01119X/1 and EP/K503940/1, and the NATO Science for Peace & Security programme under grant agreement MYP G5355. | en |
dc.description.abstract | Lead halide perovskites are very promising materials for many optoelectronic devices. They are low cost, photostable, and strongly photoluminescent materials, but so far have been little studied for sensing. In this article, we explore hybrid perovskites as sensors for explosive vapor. We tune the dimensionality of perovskite films in order to modify their exciton binding energy and film morphology and explore the effect on sensing response. We find that tuning from the 3D to the 0D regime increases the PL quenching response of perovskite films to the vapor of dinitrotoluene (DNT)—a molecule commonly found in landmines. We find that films of 0D perovskite nanocrystals work as sensitive and stable sensors, with strong PL responses to DNT molecules at concentrations in the parts per billion range. The PL quenching response can easily be reversed, making the sensors reusable. We compare the response to several explosive vapors and find that the response is strongest for DNT. These results show that hybrid perovskites have great potential for vapor sensing applications. | |
dc.format.extent | 9 | |
dc.language.iso | eng | |
dc.relation.ispartof | APL Materials | en |
dc.rights | Copyright © 2020 Author(s). All article content, except where otherwise noted, is licensed under a Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). | en |
dc.subject | QC Physics | en |
dc.subject | TK Electrical engineering. Electronics Nuclear engineering | en |
dc.subject | DAS | en |
dc.subject.lcc | QC | en |
dc.subject.lcc | TK | en |
dc.title | Sensing of explosive vapor by hybrid perovskites : effect of dimensionality | en |
dc.type | Journal article | en |
dc.contributor.sponsor | EPSRC | en |
dc.contributor.sponsor | NATO | en |
dc.contributor.sponsor | EPSRC | en |
dc.description.version | Publisher PDF | en |
dc.contributor.institution | University of St Andrews. School of Physics and Astronomy | en |
dc.contributor.institution | University of St Andrews. Sir James Mackenzie Institute for Early Diagnosis | en |
dc.contributor.institution | University of St Andrews. Centre for Biophotonics | en |
dc.contributor.institution | University of St Andrews. Condensed Matter Physics | en |
dc.identifier.doi | https://doi.org/10.1063/5.0011229 | |
dc.description.status | Peer reviewed | en |
dc.identifier.grantnumber | EP/T0119X/1 | en |
dc.identifier.grantnumber | MYP G5355 | en |
dc.identifier.grantnumber | EP/R511778/1 | en |
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