Analysis of biopolymeric starch films for potential application in optoelectronics

Abstract

The research on energy-efficient materials, such as perovskites, has experienced a surge due to their characteristics, low cost, and various synthesis methods, which enable the development of optoelectronic devices. However, their susceptibility to instability when exposed to air, moisture, or temperature variations has motivated the search for alternative structures that utilize sustainable materials, aiming to improve durability, optimize manufacturing, and reduce costs. In this context, the synthesis of starch-based polymeric matrix is proposed, applying a biopolymer, with the objective of mitigating the use of hydrocarbon-based polymers. The selected polysaccharides are derived from potatoes and aquatic plants from Lake Tota (Elodea). They were dissolved in dimethyl sulfoxide and dimethylformamide under ambient conditions, evaluating the feasibility of their application in perovskite-based technologies. The process resulted in the formation of homogeneous films, demonstrating the partial and complete dissolution of starches and establishing the foundation for their potential application in these perovskitebased devices.