Quantum Dot Supernova-like-Shaped Arsenic (III) Sulfide-Oxide/Polypyrrole Thin Film for Optoelectronic Applications in a Wide Optical Range from Ultraviolet to Infrared

A quantum dot (QD) thin film of arsenic (III) oxide-hydroxide/polypyrrole (As2S3-As2O3/Ppy) with a supernova-like shape has been developed for optoelectronic applications across wide optical range, spanning from ultraviolet (UV) to infrared (IR). The fabrication process involves the polymerization pyrrole form Ppy in presence NaAsO2 and K2S2O8. resulting QD exhibits remarkable morphology characterized by structure porous nature particle size 4 nm. unique contributes its properties. material demonstrates maximum absorbance that extends up 600 chemical composite proved using various characterization techniques. As2S3-As2O3/Ppy holds significant potential applications, particularly light detection multiple regions. Its sensitivity evaluated through measurement photoresponsivity (R), yielding high value 0.31 mA/W. This indicates substantial current density (Jph) 0.031 mA/cm2 at wavelength 340 Additionally, detectivity (D) photodetector calculated based on these values, capability 6.9 × 107 Jones. ability detect low levels photons this photodetector. highly reproducible enables application systems. offers great promise as versatile excellent sensitivity, detectivity.