(BA)2CsAgBiBr7/PVDF composite for energy harvesting and sensing application

Abstract

The thesis eloquently delineated the comprehensive endeavour undertaken to advance the domain of all-inorganic layered perovskite nanomaterials, with a specific emphasis on their utilization in the realm of Piezoelectric Nano generator (PENG) construction. Through a meticulous exploration, an in-depth analysis was conducted to delve into the historical evolution, fundamental operational principles, intrinsic characteristics, and the potential trajectory of this technology. The exhaustive review of existing literature encompassed a thorough examination of numerous research articles and scientific manuscripts, aimed at elucidating the current standing and identifying the research voids within the diverse array of perovskite materials currently accessible, distinguished by their remarkable electrical, chemical, and optoelectronic prowess. Leveraging the advantages conferred by facile assembly, a conformal structure, adaptability, and autonomous functionalities, such as energy harvesting and, photo detection these materials have emerged as a viable and sustainable alternative energy source, poised to reshape the energy landscape. Research endeavours focusing on perovskite materials have already underscored their exceptional electrical conductivity and modifiable bandgap, positioning them in the vanguard of materials deemed promising for applications in optoelectronic mersisters, as well as energy harvesting mechanisms. In this context, a meticulous optimization process was undertaken to refine the synthesis methodology for the pivotal all-inorganic compound known as butyl ammonium Caesium Silver Bismuth Bromide ((BA)2CsAgBiBr7), a layered perovskite nanostructure, achieved through a streamlined chemical synthesis pathway. Subsequent to the synthesis, a comprehensive characterization encompassing structural, morphological, electrical, and optical analyses was conducted to ascertain the properties and attributes of the developed materials. Composite thin films comprising (BA)2CsAgBiBr7/PVDF were fabricated to serve as the building blocks for the Nano generator and other associated devices, marking a significant stride in the realm of energy conversion technologies. The functionality and performance of the Nano generator were meticulously scrutinized, with a particular focus on its efficacy in harnessing energy from human motion. Notably, the investigation revealed promising outcomes, culminating in the development of an innovative application cantered on Knock Detection, underpinned by the Piezoelectric Nano generator (PENG) technology, thus exemplifying the boundless potential and versatility of this ground-breaking technology.