Enhanced photoresponse in a Ag <sub>2</sub> S/In <sub>2</sub> Se <sub>3</sub> heterojunction based visible light photodetector
Prabhukrupa Chinmay Kumar, Swosti Mohanty, Jnanranjan Panda, Subhashree Das, S. Supriya, D. Alagarasan, Ramakanta Naik
Abstract
. The optical bandgap, density, extinction coefficient, and skin depth showed changes as probed by UV-visible spectroscopy. Upon annealing, the band gap was enhanced by 0.157 eV from its as-prepared state. The observed changes in optical parameters and photoconductivity make the film a suitable candidate for visible light photodetection.
Topics & Concepts
PhotodetectorPhotocurrentHeterojunctionOptoelectronicsMaterials scienceAnnealing (glass)PhotoconductivityVisible spectrumReverse biasDiodeComposite materialQuantum Dots Synthesis And PropertiesChalcogenide Semiconductor Thin FilmsPerovskite Materials and Applications