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Tuning the Dielectric Constant and Surface Engineering of a BaTiO/Porous PDMS Composite Film for Enhanced Triboelectric Nanogenerator Output Performance. | LitMetric

Tuning the Dielectric Constant and Surface Engineering of a BaTiO/Porous PDMS Composite Film for Enhanced Triboelectric Nanogenerator Output Performance.

ACS Omega

Department of Electrical Engineering, Faculty of Engineering and Center of Excellence in Materials Science and Technology and Materials Science Research Center, Faculty of Science, Chiang Mai University, Chiang Mai 50200, Thailand.

Published: November 2021

AI Article Synopsis

Article Abstract

In this work, synergistic effects derived from surface engineering and dielectric property tuning were exploited to enhance the output performance of a triboelectric nanogenerator (TENG) based on an inorganic/porous PDMS composite in a contact-separation mode. BaTiO (BT)/porous PDMS films with different BT weight ratios were fabricated and evaluated for triboelectric nanogenerator (TENG) application. Maximum output signals of ca. 2500 V, 150 μA, and a power density of 1.2 W m are achieved from the TENG containing 7 wt % BT, which is the best compromise in terms of surface roughness, dielectric constant, and surface contact area as evidenced by SEM and AFM studies. These electrical signals are 2 times higher than those observed for the TENG without BT. The 7BT/porous PDMS-based TENG also shows high stability without a significant loss of output voltage for at least 24 000 cycles. With this optimized TENG, more than 350 LEDs are lit up and a wireless transmitter is operated within 9 s. This work not only shows the promoting effects from porous surfaces and an optimized dielectric constant but also offers a rapid and template/waste-free fabrication process for porous PDMS composite films toward large-scale production.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8582040PMC
http://dx.doi.org/10.1021/acsomega.1c04222DOI Listing

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