Abstract
In this paper we report on gas sensors based on graphene grown by Chemical Vapor Deposition at 850 °C. Mo was used as catalyst for graphene nucleation. Resistors were directly designed on pre-patterned Mo using the transfer-free process we recently developed, thus avoiding films damage during the transfer to the target substrate. Devices operating at room temperature and relative humidity set at 50% were tested towards NO2. The sensors resulted to be highly specific towards NO2 and showed current variation up to 6%. The performances were compared with those of gas sensors based on graphene grown at 980 °C, which represents the usual growth temperature for such material. The findings show that by lowering the graphene growth temperature and consequently the energy consumptions the sensing benefits of these devices are still preserved.
Original language | English |
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Title of host publication | Proceedings of Eurosensors |
Pages | 1-4 |
Number of pages | 4 |
DOIs | |
Publication status | Published - 2017 |
Event | Eurosensors 2017: 31st Conference - Paris, France Duration: 3 Sep 2017 → 6 Sep 2017 Conference number: 31 http://www.eurosensors2017.eu/ |
Publication series
Name | Proceedings |
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Publisher | MDPI |
Number | 4 |
Volume | 1 |
ISSN (Print) | 2504-3900 |
Conference
Conference | Eurosensors 2017 |
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Country/Territory | France |
City | Paris |
Period | 3/09/17 → 6/09/17 |
Internet address |
Keywords
- gas sensors
- NO2
- environmental conditions
- graphene
- chemical vapor deposition
- transfer-free process