Print Email Facebook Twitter Drawing WS2thermal sensors on paper substrates Title Drawing WS2thermal sensors on paper substrates Author Lee, M. (TU Delft QN/Steeneken Lab; Kavli institute of nanoscience Delft) Mazaheri, Ali (Instituto de Ciencia de Materiales de Madrid (ICMM); University of Tehran) van der Zant, H.S.J. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) Frisenda, Riccardo (Instituto de Ciencia de Materiales de Madrid (ICMM)) Castellanos-Gomez, Andres (Instituto de Ciencia de Materiales de Madrid (ICMM)) Date 2020 Abstract Paper based thermoresistive sensors are fabricated by rubbing WS2 powder against a piece of standard copier paper, like the way a pencil is used to write on paper. The abrasion between the layered material and the rough paper surface erodes the material, breaking the weak van der Waals interlayer bonds, yielding a film of interconnected platelets. The resistance of WS2 presents a strong temperature dependence, as expected for a semiconductor material in which charge transport is due to thermally activated carriers. This strong temperature dependence makes the paper supported WS2 devices extremely sensitive to small changes in temperature. This exquisite thermal sensitivity, and their fast response times to sudden temperature changes, is exploited thereby demonstrating the USAbility of a WS2-on-paper thermal sensor in a respiration monitoring device. To reference this document use: http://resolver.tudelft.nl/uuid:8641be19-f2ce-488f-bae7-3806378d1b3e DOI https://doi.org/10.1039/d0nr06036d ISSN 2040-3364 Source Nanoscale, 12 (43), 22091-22096 Part of collection Institutional Repository Document type journal article Rights © 2020 M. Lee, Ali Mazaheri, H.S.J. van der Zant, Riccardo Frisenda, Andres Castellanos-Gomez Files PDF d0nr06036d.pdf 4.03 MB Close viewer /islandora/object/uuid:8641be19-f2ce-488f-bae7-3806378d1b3e/datastream/OBJ/view