Chemically Transformed Ag 2 Te Nanowires on Polyvinylidene Fluoride Membrane For Flexible Thermoelectric Applications

Flexible thermoelectric devices of nanomaterials have shown a great potential for applications in wearable to remotely located electronics with desired shapes and geometries. Continuous powering up the low power flexible electronics is a major challenge. We are reporting a flexible thermoelectric mo...

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Bibliographic Details
Published in:Angewandte Chemie International Edition 2024-03, Vol.63 (11), p.e202401234
Main Authors: Kashyap, Ankit, Rawat, Divya, Sarkar, Debattam, Singh, Niraj Kumar, Biswas, Kanishka, Soni, Ajay
Format: Article
Language:English
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Summary:Flexible thermoelectric devices of nanomaterials have shown a great potential for applications in wearable to remotely located electronics with desired shapes and geometries. Continuous powering up the low power flexible electronics is a major challenge. We are reporting a flexible thermoelectric module prepared from silver telluride (Ag Te) nanowires (NWs), which are chemically transformed from uniquely synthesized and scalable tellurium (Te) NWs. Conducting Ag Te NWs composites have shown an ultralow total thermal conductivity ~0.22 W/mK surpassing the bulk melt-grown Ag Te ~1.23 W/mK at ~300 K, which is attributed to the nanostructuring of the material. Flexible thermoelectric device consisting of 4 legs (n-type) of Ag Te NWs on polyvinylidene fluoride membrane displays a significant output voltage (V ) ~2.3 mV upon human touch and V ~18 mV at temperature gradient, ΔT ~50 K, which shows the importance of NWs based flexible thermoelectric devices to power up the low power wearable electronics.
ISSN:1433-7851
1521-3773
DOI:10.1002/anie.202401234