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. 2018 Oct 26;18(11):3638. doi: 10.3390/s18113638

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© 2018 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

PMC Copyright notice

Panel (a): RT sensing responses of exfoliated BP flakes to H₂ (black curve) and NH₃ (blue curve); Panel (b): RT sensing responses of exfoliated BP flakes to NO₂. (Reproduced with permission from [212], © IOP Publishing, Bristol, United Kingdom. Reproduced with all permission. All rights reserved).