A chemosensitive-based ammonia gas sensor with PANI/PEO-ZnO nanofiber composites sensing layer
| dc.contributor.author | Konuk Ege, Gözde | |
| dc.contributor.author | Akay, Özge | |
| dc.contributor.author | Yüce, Hüseyin | |
| dc.date.accessioned | 2024-06-13T20:18:15Z | |
| dc.date.available | 2024-06-13T20:18:15Z | |
| dc.date.issued | 2023 | |
| dc.department | Meslek Yüksekokulu, Gedik Meslek Yüksekokulu, Mekatronik Programı | |
| dc.description.abstract | PurposeThis study aims to investigate the ammonia-sensing performance of polyaniline/polyethylene oxide (PANI/PEO) and polyaniline/polyethylene oxide/zinc oxide (PANI/PEO-ZnO) composite nanofibers at room temperature. Design/methodology/approachGas sensor structures were fabricated using microfabrication techniques. First, onto the SiO2 wafer, gold electrodes were fabricated via thermal evaporation. PANI/PEO nanofibers were produced by the electrospinning method, and the ZnO layer was deposited by using radio frequency (RF) magnetron sputtering on the electrospun nanofibers as a sensing layer. Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM) and X-ray diffraction were performed to characterize the analysis of nanofibers. After all, gas sensing analysis of PANI/PEO and PANI/PEO/ZnO nanofibers was conducted using an experimental setup at room temperature conditions. Furthermore, the impact of humidity (17%-90% RH) on the sensor resistance was actively investigated. FindingsFTIR analysis confirms the presence of functional groups of PANI, PEO and ZnO in nanofiber structure. SEM micrographs demonstrate beads-free, thinner and smooth nanofibers with ZnO contribution to electrospun PANI/PEO nanofibers. Moreover, according to the gas sensing results, the PANI/PEO nanofibers exhibit 115 s and 457 s response time and recovery time, respectively. However, the PANI/PEO/ZnO nanofibers exhibit 245 s and 153 s response time and recovery time, respectively. PANI/PEO/MOx composite nanofibers ensure stability to the NH3 gas owing to the high surface/volume ratio and decrease in the humidity dependence of gas sensors, making gas sensors more stable to the environment. Originality/valueIn this study, ZnO was deposited via RF magnetron sputtering techniques on PANI/PEO nanofibers as a different approach instead of in situ polymerization to investigate and enhance the sensor response and recovery time of the PANI/PEO/ZnO and PANI/PEO composite nanofibers to ammonia. These results indicated that ZnO can enhance the sensing properties of conductive polymer-based resistive sensors. | |
| dc.identifier.doi | 10.1108/MI-04-2023-0051 | |
| dc.identifier.issn | 1356-5362 | |
| dc.identifier.issn | 1758-812X | |
| dc.identifier.scopus | 2-s2.0-85158908642 | |
| dc.identifier.scopusquality | Q4 | |
| dc.identifier.uri | https://doi.org/10.1108/MI-04-2023-0051 | |
| dc.identifier.uri | https://hdl.handle.net/11501/1289 | |
| dc.identifier.wos | WOS:000986103600001 | |
| dc.identifier.wosquality | Q4 | |
| dc.indekslendigikaynak | Web of Science | |
| dc.indekslendigikaynak | Scopus | |
| dc.institutionauthor | Konuk Ege, Gözde | |
| dc.institutionauthorid | 0000-0001-7349-0416 | |
| dc.language.iso | en | |
| dc.publisher | Emerald Group Publishing Ltd | |
| dc.relation.ispartof | Microelectronics International | |
| dc.relation.publicationcategory | Makale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı | |
| dc.rights | info:eu-repo/semantics/closedAccess | |
| dc.subject | Composites | |
| dc.subject | Pani | |
| dc.subject | Gas Sensor | |
| dc.subject | Polymer | |
| dc.subject | Nanofibers | |
| dc.title | A chemosensitive-based ammonia gas sensor with PANI/PEO-ZnO nanofiber composites sensing layer | |
| dc.type | Article |
