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Abstract
This paper presents a temperature difference triboelectric nanogenerator (TDNG) designed to enhance electrical output performance in high-temperature environments. Unlike typical triboelectric nanogenerators (TENGs) whose output decreases at high temperatures due to thermionic emission, the TDNG leverages a temperature difference between its friction layers. A 145 K temperature difference resulted in a 2.7-fold increase in voltage, 2.2-fold increase in current, 3.0-fold increase in surface charge density, and a 4.9-fold increase in output power compared to a 0 K difference. Further optimization achieved a current density of 443 µA cm⁻², exceeding previous records. The study includes theoretical modeling and experimental validation.
Publisher
Nature Communications
Published On
Aug 06, 2021
Authors
Bolang Cheng, Qi Xu, Yaqin Ding, Suo Bai, Xiaofeng Jia, Yangdianchen Yu, Juan Wen, Yong Qin
Tags
triboelectric nanogenerator
temperature difference
high-temperature environments
electrical output
surface charge density
current density
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