Publication: RARE EARTH OXIDE DIELECTRICS FOR FLEXIBLE TRIBOELECTRIC NANOGENERATOR
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Issued Date
2025-01-01
Resource Type
ISSN
0858849X
eISSN
25870009
Scopus ID
2-s2.0-105006001594
Journal Title
Suranaree Journal of Science and Technology
Volume
32
Issue
1
Rights Holder(s)
SCOPUS
Bibliographic Citation
Suranaree Journal of Science and Technology Vol.32 No.1 (2025)
Suggested Citation
Kingkam W., Issarapanacheewin S., Ukasi S., Pulphol P., Pakawanit P., Vittayakorn N., Pongampai S., Charoonsuk T. RARE EARTH OXIDE DIELECTRICS FOR FLEXIBLE TRIBOELECTRIC NANOGENERATOR. Suranaree Journal of Science and Technology Vol.32 No.1 (2025). doi:10.55766/sujst9270 Retrieved from: https://hdl.handle.net/20.500.14740/21053
Corresponding Author(s)
Other Contributor(s)
Abstract
Rare earth oxides (REO) are well known in catalysts, glass-related industries, and permanent magnets manufacturing for almost 70%, according to the mature industry. This work proposes the new developments of REO as the emergence for mechanical energy harvesting (MEH) technology. The binary-system of REO or R2O3, including La2O3, Sm2O3 and Nd2O3, are used as dielectric materials to incorporate polydimethylsiloxane (PDMS) for fabricating flexible triboelectric nanogenerators (TENG), one of MEH devices. The change in REO’s amount was studied at 0.5, 2.5, 5, and 10 wt%. Upon applying mechanical force in vertical direction, the PDMS/R2O3 TENG can convert mechanical energy into electricity for the best value of ~66 V and ~93 μA with power density of about ~62 μW·cm-2. The PDMS/La2O3 can be used to fully charge the 0.22 and 0.33 μF capacitor within 3 seconds and power up over 100 LEDs directly. Moreover, the influence of triboelectric polarity and dielectricity on the triboelectric output performance is scientifically discussed by following the percolation point with air breakdown limitation’s theory. The researcher believes that the knowledge of this work will be inexhaustible useful to develop a group of REO in broad applications of MEH electronics in future.