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. 2018 May 23;8:8073. doi: 10.1038/s41598-018-26263-1

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© The Author(s) 2018

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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OCMFET pixel for bimodal sensing. (a) Schematic representation of OCMFETs with PVDF-TrFE spin-coated onto the sensing area. (b) I_DS variations upon the application of a thermal stimulus to the sensing area with poled PVDF-TrFE (red curve) and unpoled PVDF-TrFE (black curve). (c) Dynamic response of the sensor to the application of force stimuli to the sensing elements. (d) Calibration curve and sensitivity of the poled OCMFET in response to thermal stimuli. (e) Calibration curve and sensitivity of the poled OCMFETs in response to mechanical stimuli. (f) Calibration curve and sensitivity of the unpoled OCMFETs in response to mechanical stimuli.