Nanoscience and Microsystems ETDs

Publication Date

Spring 5-13-2023

Abstract

Barium titanate (BTO) has been extensively studied for its promise in increasing device performance with its high dielectric constant. With the world moving toward miniaturization, research in nanotechnology is paving a road for the future of electronics, energy storage, and batteries. A challenge in understanding BTO’s potential lies in the particles’ tendency to agglomerate. Nanoparticles behave differently than their bulk counterparts, so understanding size effects is a crucial step in understanding BTO. In this work, BTO nanoparticles are synthesized via a hydrolysis reaction, then functionalized via a ligand exchange reaction to reduce agglomeration. BTO is added to epoxy composites at different volume percents, allowing for capacitance measurements. Finally, these composites are sectioned to obtain transmission electron microscopy (TEM) data to be used to quantify agglomeration. In this work, tert-butyl phosphonic acid (tBuPA) reduced agglomeration, and as the volume loading of the composites increased, the dielectric constant increased.

Keywords

Barium titanate, Ceramic materials, Dielectric constant, Nanotechnology

Document Type

Thesis

Language

English

Degree Name

Nanoscience and Microsystems

Level of Degree

Masters

Department Name

Nanoscience and Microsystems

First Committee Member (Chair)

Abhaya Datye

Second Committee Member

Eva Chi

Third Committee Member

Nick Carroll

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