Room temperature ethanol sensor with SUB-PPM detection limit improving the optical response by using mesoporous silica foam /
In this paper a low ppm-range ethanol sensor - operating at room temperature - is presented. The three types of ZnO2 based hybrid thin films as sensor surfaces consist of semiconductor nanoparticles, polyelectrolyte (polyacrylic acid, PAA) and/or mesoporous silica. The thin films were prepared by La...
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| Dokumentumtípus: | Könyv része |
| Megjelent: |
2016
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| Sorozat: | Proceedings of the International Symposium on Analytical and Environmental Problems
22 |
| Kulcsszavak: | Fizikai kémia |
| Online Access: | http://acta.bibl.u-szeged.hu/56132 |
| LEADER | 01989naa a2200277 i 4500 | ||
|---|---|---|---|
| 001 | acta56132 | ||
| 005 | 20220808154857.0 | ||
| 008 | 181213s2016 hu o 1|| zxx d | ||
| 020 | |a 978-963-306-507-5 | ||
| 040 | |a SZTE Egyetemi Kiadványok Repozitórium |b hun | ||
| 041 | |a zxx | ||
| 100 | 1 | |a Sebők Dániel | |
| 245 | 1 | 0 | |a Room temperature ethanol sensor with SUB-PPM detection limit |h [elektronikus dokumentum] : |b improving the optical response by using mesoporous silica foam / |c Sebők Dániel |
| 260 | |c 2016 | ||
| 300 | |a 407-411 | ||
| 490 | 0 | |a Proceedings of the International Symposium on Analytical and Environmental Problems |v 22 | |
| 520 | 3 | |a In this paper a low ppm-range ethanol sensor - operating at room temperature - is presented. The three types of ZnO2 based hybrid thin films as sensor surfaces consist of semiconductor nanoparticles, polyelectrolyte (polyacrylic acid, PAA) and/or mesoporous silica. The thin films were prepared by Layer-by-Layer (LbL) self-assembly method and were subjected to reflectometric interference measurements (RIfS) for testing sensorial application. The sensor investigation showed that the detection limit of the thin films is in the sub-ppm range. Applying mesoporous silica as surface coating or interlayers in the sandwich-structured thin film (ZnO/SF) improved the optical response, but the sensitivity showed non-linear characteristic. The thin film with mixed structure (ZnO/PAA/ZnO/SF) showed linear response in the 0.5-12 ppm range with 0.6 nm /ppm sensitivity and acceptable selectivity. | |
| 695 | |a Fizikai kémia | ||
| 700 | 0 | 1 | |a Janovák László |e aut |
| 700 | 0 | 1 | |a Sápi András |e aut |
| 700 | 0 | 1 | |a Dobó Dorina G. |e aut |
| 700 | 0 | 1 | |a Kukovecz Ákos |e aut |
| 700 | 0 | 1 | |a Kónya Zoltán |e aut |
| 700 | 0 | 1 | |a Dékány Imre |e aut |
| 710 | |a International Symposium on Analytical and Environmental Problems (22.) (2016) (Szeged) | ||
| 856 | 4 | 0 | |u http://acta.bibl.u-szeged.hu/56132/1/proceedings_of_isaep_2016_407-411.pdf |z Dokumentum-elérés |