Electrochemical Studies on Photoactive Thin Solid Films of Poly (2-(2-Thienyl) Furan) Occluded with a g-C 3 N 4 /SiC Mixture in Gel Electrolyte

Abstract

Photoactive assemblies were created using SiC, C 3 N 4 (CN), and Poly (2-(2-thienyl) furan) (PTF). These assemblies underwent spectroscopic and photoelectrochemical (PEC) investigations. The results show that these ternary semiconductor assemblies combine the advantages of each component to produce an enhanced photo response outcome. As a multiphase photocatalyst, they minimize or eliminate the electron-hole fast recombination problems associated with single-phase assemblies. Spectroscopic studies indicate that all assembly components absorb visible light photons with energy between 3.1 and 2.1 eV. The largest PEC photo response outcome was recorded when PTF was occluded with each SiC, CN, or both. PEC studies show that PTF/SiC/CN generates greater photon-to-charge conversion than PTF/SiC or PTF/CN. The photodiode parameters of the PTF/SiC/CN were calculated. The ideality factor was >1, which is expected from organic polymer semiconductors. The obtained spectroscopic/PEC results were explained by suggesting that PTF creates a better environment for forming multiphase interfaces to facilitate the movement of charge carriers and prevent the recombination of electron-hole pairs.