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http://dx.doi.org/10.5695/JKISE.2021.54.6.324

Evaluating the performance and characteristics of Rutile TiO2 thin film for Triboelectric Nanogenerator (TENG)  

Moon, Ji-Hyeon (Department of Materials Science and Chemical Engineering, Hanyang university)
Kim, Han-Jae (Department of Materials Science and Chemical Engineering, Hanyang university)
Kim, Hyo-Bae (Department of Materials Science and Chemical Engineering, Hanyang university)
Ahn, Ji-Hoon (Department of Materials Science and Chemical Engineering, Hanyang university)
Publication Information
Journal of the Korean institute of surface engineering / v.54, no.6, 2021 , pp. 324-330 More about this Journal
Abstract
As energy harvesting technology becomes important in relation to environmental issues, piezoelectric materials that convert mechanical energy into electrical energy are attracting attention. However, PZT, a representative material for piezoelectricity, is becoming difficult to use due to the problem that its components can cause environmental pollution. For this reason, recent research suggests a triboelectric nanogenerator (TENG) that generates energy through the combined effect of triboelectricity and electric induction for alternative piezoelectric devices. In TENG, electrical power is determined by the dielectric constant, thickness, and grain generation of the charged material. Therefore, in this study, a Rutile phase TiO2 thin film with high dielectric constant was formed using the spin-coating process and the effect of annealing was investigated. For electrical analysis, a TENG device was fabricated using PTFE as a material with an opposite charge, and electrical output according to film thickness and grain formation was comparatively analyzed.
Keywords
$TiO_2$; PTFE; Triboelectric nanogenerator; Sol-gel process; Energy harvesting;
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