uu.seUppsala universitets publikasjoner
Endre søk
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf
Porous Nickel Oxide Film Sensor for Formaldehyde
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Fasta tillståndets fysik.
Vise andre og tillknytning
2014 (engelsk)Inngår i: INERA Workshop: Transition Metal Oxides as Functional Layers in Smart windows and Water Splitting Devices / Parallel session of the 18th International School on Condensed Matter Physics, 2014, s. UNSP 012012-Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Formaldehyde is a volatile organic compound and a harmful indoor pollutant contributing to the "sick building syndrome". We used advanced gas deposition to fabricate highly porous nickel oxide (NiO) thin films for formaldehyde sensing. The films were deposited on Al2O3 substrates with prefabricated comb-structured electrodes and a resistive heater at the opposite face. The morphology and structure of the films were investigated with scanning electron microscopy and X-ray diffraction. Porosity was determined by nitrogen adsorption isotherms with the Brunauer-Emmett-Teller method. Gas sensing measurements were performed to demonstrate the resistive response of the sensors with respect to different concentrations of formaldehyde at 150 degrees C.

sted, utgiver, år, opplag, sider
2014. s. UNSP 012012-
Serie
Journal of Physics Conference Series, ISSN 1742-6588 ; 559
HSV kategori
Identifikatorer
URN: urn:nbn:se:uu:diva-237084DOI: 10.1088/1742-6596/559/1/012012ISI: 000346420600012OAI: oai:DiVA.org:uu-237084DiVA, id: diva2:766351
Konferanse
INERA Workshop on Transition Metal Oxides as Functional Layers in Smart windows and Water Splitting Devices / Parallel session of the 18th International School on Condensed Matter Physics, sep 4-6, 2014, Varna, Bulgaria
Tilgjengelig fra: 2014-11-26 Laget: 2014-11-26 Sist oppdatert: 2016-10-14bibliografisk kontrollert
Inngår i avhandling
1. Thin films for indoor air monitoring: Measurements of Volatile Organic Compounds
Åpne denne publikasjonen i ny fane eller vindu >>Thin films for indoor air monitoring: Measurements of Volatile Organic Compounds
2016 (engelsk)Doktoravhandling, med artikler (Annet vitenskapelig)
Abstract [en]

Volatile organic compounds (VOCs) in the indoor air have adverse effects on the dwellers residing in a building or a vehicle. One of these effects is called sick building syndrome (SBS). SBS refers to situations in which the users of a building develop acute health effects and discomfort depending on the time they spend inside some buildings without having any specific illness. Furthermore, monitoring volatile organic compounds could lead to early diagnosis of specific illnesses through breath analysis. Among those VOCs formaldehyde, acetaldehyde can be listed.

In this thesis, VOC detecting thin film sensors have been investigated. Such sensors have been manufactured using semiconducting metal oxides, ligand activated gold nanoparticles and Graphene/TiO2 mixtures. Advanced gas deposition unit, have been used to produce NiO thin films and Au nanoparticles. DC magnetron sputtering has been used to produce InSnO and VO2 thin film sensors. Graphene/TiO2 sensors have been manufactured using doctor-blading.

While presenting the results, first, material characterization details are presented for each sensor, then, gas sensing results are presented. Morphologies, crystalline structures and chemical properties have been analyzed using scanning electron microscopy, X-ray diffraction and X-ray photo electron spectroscopy. Furthermore, more detailed analyses have been performed on NiO samples using extended X-ray absorption fine structure method and N2 adsorption measurements. Gas sensing measurements were focused on monitoring formaldehyde and acetaldehyde. However, responses ethanol and methane were measured in some cases to monitor selectivity. Graphene/TiO2 samples were used to monitor NO2 and NH3. For NiO thin film sensors and Au nano particles, fluctuation enhanced gas sensing is also presented in addition to conductometric measurements. 

sted, utgiver, år, opplag, sider
Uppsala: Acta Universitatis Upsaliensis, 2016. s. 78
Serie
Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Science and Technology, ISSN 1651-6214 ; 1422
Emneord
gas sensor, thin film, adcanced gas depostion, sputter deposition, nickel oxide, gold nanoparticles, indium tin oxide, acetaldehyde, formaldehyde
HSV kategori
Identifikatorer
urn:nbn:se:uu:diva-302558 (URN)978-91-554-9683-8 (ISBN)
Disputas
2016-10-21, Room Å2001, Ångströmlaboratoriet, Lägerhyddsv 1, 13:15 (engelsk)
Opponent
Veileder
Forskningsfinansiär
EU, FP7, Seventh Framework Programme, 267234
Tilgjengelig fra: 2016-09-28 Laget: 2016-09-06 Sist oppdatert: 2016-10-14bibliografisk kontrollert

Open Access i DiVA

fulltext(760 kB)355 nedlastinger
Filinformasjon
Fil FULLTEXT02.pdfFilstørrelse 760 kBChecksum SHA-512
90ec2bb688d43e4f924473e69e365624a93fa52d92e60f95f5126a1a8fdf9bf3a89b0b863e2dcd00acfb8d19ee12115df453a4da60cf4d323793e6f191a54622
Type fulltextMimetype application/pdf

Andre lenker

Forlagets fulltekst

Personposter BETA

Cindemir, UmutTopalian, ZarehÖsterlund, LarsGranqvist, Claes-GöranGunnar, Niklasson

Søk i DiVA

Av forfatter/redaktør
Cindemir, UmutTopalian, ZarehÖsterlund, LarsGranqvist, Claes-GöranGunnar, Niklasson
Av organisasjonen

Søk utenfor DiVA

GoogleGoogle Scholar
Totalt: 359 nedlastinger
Antall nedlastinger er summen av alle nedlastinger av alle fulltekster. Det kan for eksempel være tidligere versjoner som er ikke lenger tilgjengelige

doi
urn-nbn

Altmetric

doi
urn-nbn
Totalt: 1375 treff
RefereraExporteraLink to record
Permanent link

Direct link
Referera
Referensformat
  • apa
  • ieee
  • modern-language-association
  • vancouver
  • Annet format
Fler format
Språk
  • de-DE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • sv-SE
  • Annet språk
Fler språk
Utmatningsformat
  • html
  • text
  • asciidoc
  • rtf