Triboelectric Nanogenerators Based on Transition Metal Carbo‐Chalcogenide (Nb2S2C and Ta2S2C) for Energy Harvesting and Self‐Powered Sensing

• DOI: 10.1002/advs.202409619
• Publication Date: 2024-09-25T14:40:49Z
• Authors: Yana Xiao; Zihua Li; Di Tan; Gachot Carsten; Bingang Xu
• Keywords: Polydimethylsiloxane

Abstract With burgeoning considerations over energy issues and carbon emissions, harvesting devices such as triboelectric nanogenerators (TENGs) are developed to provide renewable sustainable power. Enhancing electric output other properties of TENGs during operation is the focus research. Herein, two species (Nb 2 S C Ta C) a new family 2D materials, Transition Metal Carbo‐Chalcogenides (TMCCs), first employed develop with doping into Polydimethylsiloxane (PDMS). Compared control samples, these TMCC‐based exhibit higher owing enhanced permittivity PDMS composite, best performance achieved at concentration 3 wt. ‰ open circuit voltage (Voc) 112 V, short current (Isc) 8.6 µA charge transfer (Qsc) 175 nC for Nb based TENG, Voc 127 Isc 9.6 µA, Qsc 230 TENGs. These show maximum power density 1360 911 mW m −2 respectively. Moreover, tribology also evaluated same revealing that C/PDMS composite electronegative material presented lower coefficient friction (COF) than composite. Their applications self‐powered sensing demonstrated.