{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,11]],"date-time":"2026-09-11T10:40:39Z","timestamp":1789123239730,"version":"build-2803163510"},"reference-count":71,"publisher":"American Chemical Society (ACS)","issue":"34","license":[{"start":{"date-parts":[[2019,8,14]],"date-time":"2019-08-14T00:00:00Z","timestamp":1565740800000},"content-version":"vor","delay-in-days":22,"URL":"https:\/\/pubs.acs.org\/page\/policy\/authorchoice_ccby_termsofuse.html"}],"funder":[{"DOI":"10.13039\/100005156","name":"Alexander von Humboldt-Stiftung","doi-asserted-by":"publisher","award":["3-3MOL\/1148833 STP"],"award-info":[{"award-number":["3-3MOL\/1148833 STP"]}],"id":[{"id":"10.13039\/100005156","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000266","name":"Engineering and Physical Sciences Research Council","doi-asserted-by":"publisher","award":["EP\/K009567"],"award-info":[{"award-number":["EP\/K009567"]}],"id":[{"id":"10.13039\/501100000266","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100000266","name":"Engineering and Physical Sciences Research Council","doi-asserted-by":"publisher","award":["EP\/L000202"],"award-info":[{"award-number":["EP\/L000202"]}],"id":[{"id":"10.13039\/501100000266","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100001659","name":"Deutsche Forschungsgemeinschaft","doi-asserted-by":"publisher","award":["FOR2093"],"award-info":[{"award-number":["FOR2093"]}],"id":[{"id":"10.13039\/501100001659","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100008202","name":"Science and Technology Center in Ukraine","doi-asserted-by":"publisher","award":["6229A"],"award-info":[{"award-number":["6229A"]}],"id":[{"id":"10.13039\/501100008202","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2019,8,28]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Nanomaterials for highly selective and sensitive sensors toward specific gas molecules of volatile organic compounds (VOCs) are most important in developing new-generation of detector devices, for example, for biomarkers of diseases as well as for continuous air quality monitoring. Here, we present an innovative preparation approach for engineering sensors, which allow for full control of the dopant concentrations and the nanoparticles functionalization of columnar material surfaces. The main outcome of this powerful design concept lies in fine-tuning the reactivity of the sensor surfaces toward the VOCs of interest. First, nanocolumnar and well-distributed Ag-doped zinc oxide (ZnO:Ag) thin films are synthesized from chemical solution, and, at a second stage, noble nanoparticles of the required size are deposited using a gas aggregation source, ensuring that no percolating paths are formed between them. Typical samples that were investigated are Ag-doped and Ag nanoparticle-functionalized ZnO:Ag nanocolumnar films. The highest responses to VOCs, in particular to (CH3)2CHOH, were obtained at a low operating temperature (250 \u00b0C) for the samples synergistically enhanced with dopants and nanoparticles simultaneously. In addition, the response times, particularly the recovery times, are greatly reduced for the fully modified nanocolumnar thin films for a wide range of operating temperatures. The adsorption of propanol, acetone, methane, and hydrogen at various surface sites of the Ag-doped Ag8\/ZnO(0001) surface has been examined with the density functional theory (DFT) calculations to understand the preference for organic compounds and to confirm experimental results. The response of the synergistically enhanced sensors to gas molecules containing certain functional groups is in excellent agreement with density functional theory calculations performed in this work too. This new fabrication strategy can underpin the next generation of advanced materials for gas sensing applications and prevent VOC levels that are hazardous to human health and can cause environmental damages.<\/jats:p>","DOI":"10.1021\/acsami.9b07275","type":"journal-article","created":{"date-parts":[[2019,7,23]],"date-time":"2019-07-23T05:17:22Z","timestamp":1563859042000},"page":"31452-31466","source":"Crossref","is-referenced-by-count":115,"title":["Tuning\nZnO Sensors Reactivity toward\nVolatile Organic Compounds via Ag Doping and Nanoparticle Functionalization"],"prefix":"10.1021","volume":"11","author":[{"given":"Vasile","family":"Postica","sequence":"first","affiliation":[{"name":"Technical University of Moldova , , 168 Stefan cel Mare Av. , ,","place":["Chisinau, Republic of Moldova, MD-2004"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alexander","family":"Vahl","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Santos-Carballal","sequence":"additional","affiliation":[{"name":"Cardiff University , , Main Building, Park Place, ,","place":["Cardiff, United Kingdom, CF10 3AT"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Torben","family":"Dankwort","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Lorenz","family":"Kienle","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Mathias","family":"Hoppe","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Abdelaziz","family":"Cadi-Essadek","sequence":"additional","affiliation":[{"name":"Cardiff University , , Main Building, Park Place, ,","place":["Cardiff, United Kingdom, CF10 3AT"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nora H.","family":"de Leeuw","sequence":"additional","affiliation":[{"name":"Cardiff University , , Main Building, Park Place, ,","place":["Cardiff, United Kingdom, CF10 3AT"]},{"name":"Utrecht University , , Princetonplein 8A , ,","place":["Utrecht, The Netherlands, 3584 CD"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Maik-Ivo","family":"Terasa","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rainer","family":"Adelung","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-3367-1655","authenticated-orcid":true,"given":"Franz","family":"Faupel","sequence":"additional","affiliation":[{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Oleg","family":"Lupan","sequence":"additional","affiliation":[{"name":"Technical University of Moldova , , 168 Stefan cel Mare Av. , ,","place":["Chisinau, Republic of Moldova, MD-2004"]},{"name":"Kiel University , , Kaiserstr. 2 , , ,","place":["Kiel, Germany, D-24143"]}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"316","published-online":{"date-parts":[[2019,7,23]]},"reference":[{"key":"2026090212130545900_cit1","doi-asserted-by":"publisher","first-page":"163","DOI":"10.1016\/j.mattod.2014.08.017","article-title":"Breath\nanalysis by nanostructured metal oxides as chemo-resistive gas sensors","volume":"18","author":"Righettoni","year":"2015","journal-title":"Mater. 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