POS5-1544
Ultrasonication-Induced Ambient Synthesis of Perovskite Nanowires with Block Copolymer for Photodetector Applications
When and Where
Nov 30, -0001
00:00 - 00:00
Presenter(s)
Doyun Kim (University of Seoul)
Co-Author(s)
Abstract
Metal halide perovskite nanowires have emerged as candidates of optoelectronic materials because of their exceptional properties, such as large absorption coefficients, high charge carrier mobility, and long exciton diffusion lengths. Conventional synthetic methods for perovskite nanowires typically require high temperatures and vacuum conditions, involving costly and complex processes. However, we successfully synthesized CsPbBr3 perovskite nanowires under ambient conditions facilitated by ultrasonication. It is especially notable that the incorporation of polystyrene-b-poly(2-vinyl pyridine) (PS-b-P2VP) block copolymers enhanced the solubility of the precursor metal ions and effectively suppressed the formation of the Cs4PbBr6 intermediate phase, enabling the synthesis of high-purity CsPbBr3 phase nanowires. Moreover, device performance analysis revealed that significant increase in photocurrent generated under light irradiation in photodetectors. This work highlights the promising potential of perovskite nanowires for next generation optoelectronic applications.
