Flexible, scalable, and efficient thermoelectric touch detector based on PDMS and graphite flakes
Year: 2021
Type: article
Abstract: This paper presents freestanding thermoelectric touch detectors consisting of graphite conductive flakes into a polydimethylsiloxane matrix. An optimal concentration of graphite flakes (45 wt%) lead to robust and homogeneous detectors that exhibited signal-noise ratio values up to 170 with rise and falling times below 1 s and 7 s, respectively. The detectors performance was stable over continuous operation and did not reveal significant degradation while bended under different curvature radii (45, 25 and 15 mm) and consecutive bending cycles. Moreover, the twist of the thermal gradient direction between the electrodes of the detector enables a Yes or No response which opens new usage possibilities. Therefore, this work provides an efficient way to develop robust, low-cost, and scalable thermal detectors with potential use in wearable technologies.
Source: Flexible and Printed Electronics
Language: English
Subfield: Biomedical Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: hybrid
Estimated APC paid: $2,850
Awards: G1085418179, G1128460439, G1201865063, G1297482482, G1516346500, G1578237752, G1763632427, G1782464864, G2010546512, G289031131, G2903583423, G336009934, G340864225, G3443510363, G3783317134, G3840324753, G3891694003, G4578358810, G4971050434, Materials Synergy Integration for a Better Europe, G5224927334, G5699496122, New era of printed paper electronics based on advanced functional cellulose, G6033293373, G6909084317, Unidade de Investigação em Microssistemas Eletromecânicos, SYmbiosis for eNERGY harversting concepts for smart platforms on foils, Unidade de Investigação em Microssistemas Eletromecânicos, G8176948845, G8911869519, Flexible thermoelectric generator for wrist wear smart devices, G99328848
OpenAlex ID: W4200587111