Sökning: id:"swepub:oai:DiVA.org:liu-13772" >
Improvement of poro...
Improvement of porous silicon based gas sensors by polymer modification
-
- Bakker, Jimmy W. P. (författare)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
- Arwin, Hans (författare)
- Linköpings universitet,Tillämpad optik,Tekniska högskolan
-
- Wang, Guoliang (författare)
- Linköpings universitet,Institutionen för fysik, kemi och biologi,Tekniska högskolan
-
visa fler...
-
Järrendahl, K. (författare)
-
visa färre...
-
(creator_code:org_t)
- Wiley, 2003
- 2003
- Engelska.
-
Ingår i: Physica Status Solidi (A). - : Wiley. - 0031-8965 .- 1521-396X. ; 197:2, s. 378-381
- Relaterad länk:
-
http://urn.kb.se/res...
-
visa fler...
-
https://urn.kb.se/re...
-
https://doi.org/10.1...
-
visa färre...
Abstract
Ämnesord
Stäng
- Gas sensing was performed using spectroscopic ellipsometry and porous silicon films. Modification of the porous layer by polymer deposition showed an increase in sensitivity to organic solvent vapor of up to 135%. The increase in sensitivity is strongly dependent on polymer concentration. At high concentrations, too much polymer is deposited, presumably blocking the pores, causing a decrease in sensitivity. At sufficiently low concentrations, the polymer causes a strong increase in sensitivity. This is assumed to be caused by the polymer being deposited inside the pores, where its interaction with the vapor influences the sensitivity. At very low concentration, the sensitivity approaches values obtained without polymer modification. The sensitivity increase is different for different vapors, pointing to possible selectivity enhancement.
Nyckelord
- 07.07.Df
- 61.43.Gt
- 78.67.Bf
- 82.35.Gh
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
Hitta via bibliotek
Till lärosätets databas