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https://hdl.handle.net/11147/7840
Title: | Fabrication and characterization of a solution processed flexible thermal sensor by using chemically synthesized GO and rGO | Authors: | Bozkurt, Hakan Diker, Halide Varlıklı, Canan |
Keywords: | Ascorbic acid Reduced graphene oxide Thermal sensor |
Publisher: | Institute of Electrical and Electronics Engineers Inc. | Abstract: | Graphene oxide (GO) was reduced by ascorbic acid which is an environmental-friendly reductant and obtained sample was named as reduced GO (rGO). Stable dispersions of GO and rGO were prepared in N,N-Dimethylformamide (DMF). Compared to GO sample, rGO was determined to have more thermal stability, smaller sheet size and lower surface energy. GO and rGO dispersions were drop-casted on aluminum (Al) coated acetate substrate and used as thermal sensor. Fabricated sensors were tested from 25 °C to 150 °C. The sensors fabricated with GO, were not stabile against driven temperature changes. However, rGO ones, presented no thermal hysteresis effect after the first heating step. This sensor (Al/rGO/Al) acted like an NTC (Negative Temperature Coefficient) thermistor. The resistance of the rGO sensor was changed between 42 k? to 25 k? depending on the test temperature range (25 °C to 150 °C). Average beta value was calculated as 519.7649 K. © 2019 IEEE. | Description: | 2019 Innovations in Intelligent Systems and Applications Conference, ASYU 2019 -- 31 October 2019 through 2 November 2019 | URI: | https://doi.org/10.1109/ASYU48272.2019.8946377 https://hdl.handle.net/11147/7840 |
ISBN: | 9781728128689 |
Appears in Collections: | Photonics / Fotonik Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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File | Size | Format | |
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Fabrication_and_Characterization.pdf | 409.74 kB | Adobe PDF | View/Open |
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