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Single-crystal zinc...
Single-crystal zinc oxide nanorods with nanovoids as highly sensitive NO2 nanosensors
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Han, Hoang Van (author)
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Hoa, N. D. (author)
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Tong, P. V. (author)
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- Nguyen, Hugo (author)
- Uppsala universitet,Mikrosystemteknik
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Hieu, N. V. (author)
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(creator_code:org_t)
- Elsevier BV, 2013
- 2013
- English.
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In: Materials letters (General ed.). - : Elsevier BV. - 0167-577X .- 1873-4979. ; 94, s. 41-43
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- Design and synthesis of nanostructured materials with a highly porous crystal structure and high specific surface area are the key issues to an enhanced gas sensing performance. This letter introduces a simple and scalable hydrothermal method to fabricate single-crystal ZnO nanorods (NRs) with nanovoids (NVs) for highly sensitive NO2 nanosensors. The fabricated ZnO NRs have a single-crystal structure with an average length and diameter of about 900 nm and 23 nm, respectively. NVs of less than 5 nm size are found frequently along the NRs. Gas-sensing characterizations revealed that the ZnO NR sensors exhibited a relatively high response to sub-ppm NO2 with excellent stability after 8 cycles of switching from NO2 to dry air without significant response reduction.
Keyword
- Nanosensors
- NO2
- NVs
- ZnO NRs
- Teknisk fysik med inriktning mot mikrosystemteknik
- Engineering Science with specialization in Microsystems Technology
Publication and Content Type
- ref (subject category)
- art (subject category)
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