“School of Nano-Sciences”
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| Paper IPM / Nano-Sciences / 16700 |
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A triboelectric nanogenerator (TENG) electrode sensitive to the adsorption of water molecules has been introduced to create a selfpowered humidity sensor. Graphene oxide (GO) nanosheets and graphene oxide nanoribbon (GONR) possessing oxygenated functional groups, as well as high dielectric constants, have been proposed as appropriate candidates for this purpose. GO papers have been fabricated in three forms, i.e. pure GO paper, uniform composites of GONR and GO, and double-layer structures of GONR on top of GO. Results showed that all of the prepared paper-based TENGs revealed excellent performances by maximum output voltage above 300 V. As active humidity sensors, the maximum voltage response values of 57
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