3D MICROSTRUCTURED POLYMERS FOR TRIBOELECTRIC NANOGENERATORS

Abstract

The demand for sustainable and decentralized energy solutions has intensified research into Triboelectric Nanogenerators (TENGs). This thesis explores the development of microstructured TENGs using 3D printing technologies, with a focus on the fabrication of triboelectric polymers. It also investigates the integration of Liquid Crystal Display (LCD)-based additive manufacturing with electrospinning to create flexible, microstructured TENG prototypes. Microstructuring in the form of different geometries was achieved and compared to flat counterparts to assess electrical output. Furthermore, this study also evaluated different parameters such as flow rate, tip-to-collector distance, and base-height ratios, and their impact on fiber uniformity and surface area. Experimental results showed that structured surfaces, especially pyramidal geometries, significantly enhanced charge generation and energy conversion efficiency compared to unstructured layers. The performance limitations and resolution constraints of commercial LCD printers were analyzed. This research highlights the feasibility and promises of combining microstructuring and 3D printing in advancing TENG.