Improvement of Triboelectric Nanogenerator by As-Prepared Lithium Niobate for Energy Harvesting and Sensing Applications

Author

Jahid Inam Chowdhury, The University of Texas Rio Grande Valley

Date of Award

7-1-2024

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Chemistry

First Advisor

M. Jasim Uddin

Second Advisor

Nazmul Islam

Third Advisor

Wei Lin

Abstract

One readily available green energy source that is used to address the small-scale energy requirement is mechanical energy. To harvest mechanical energy, supply energy for upcoming electronic devices, and enable flexible health monitoring, triboelectric nanogenerators composed of perovskite and lightweight polymers have garnered significant interest. A material named lithium niobate (LiNbO3) was produced in two different phases and used to make a flexible triboelectric nanogenerator (TENG). Furthermore, lightweight polydimethylsiloxane (PDMS), Polyvinyl Alcohol (PVA), and LiNbO3 nanoparticles were used to produce a small triboelectric nanogenerator that successfully converts mechanical energy into electricity. LiNbO3 nanoparticles were first created and loaded into polydimethylsiloxane (PDMS) to create a triboelectric composite film. This triboelectric composite film was then placed between two copper electrodes to develop a TENG. The concentration of LiNbO3 injected into PDMS and PVA was thoroughly examined, as well as the electrical performance. Open-circuit voltage and short-circuit current measurements for the optimum LiNbO3 incorporated F-TENG were ∼10.24V to ∼2.54V and ∼170 nA to 2.4 μA, respectively (consistent). Triboelectric Nanogenerators (TENGs) showcase immense potential in research, serving as innovative energy-harvesting devices. From powering wearable electronics and self-sufficient sensors to enabling structural health monitoring and contributing to the Internet of Things, TENG applications span diverse fields. Their ability to convert ambient mechanical energy into electricity positions them as key contributors to sustainable and self-powered technological advancements. These sensors could be applied in areas such as monitoring blood flow, respiration, and muscle contractions.

Comments

Copyright 2024 Jahid Inam Chowdhury. https://proquest.com/docview/3115378857

Recommended Citation

Chowdhury, Jahid Inam, "Improvement of Triboelectric Nanogenerator by As-Prepared Lithium Niobate for Energy Harvesting and Sensing Applications" (2024). Theses and Dissertations. 1547.
https://scholarworks.utrgv.edu/etd/1547