{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["16(6)"],"submitter":["Sharma I"],"pubmed_abstract":["A self-powered visible-light photodetector was fabricated using a coumarin-derived Schiff base, 4-FMCSB, as the active layer. The compound was synthesized <i>via</i> a two-step process and characterized using FT-IR, NMR, MALDI-TOF-MS, and UV-vis spectroscopy. The optical band gap of 4-FMCSB was determined to be 2.33 eV, with DFT calculations confirming a HOMO-LUMO gap of 2.79 eV. Thin films of 4-FMCSB were deposited on ITO substrates <i>via</i> spin coating, and aluminium contacts were thermally evaporated to form Al/4-FMCSB/ITO photodetectors. The device exhibited a strong rectification ratio, rapid photo response (rise time: 510 ms; fall time: 210 ms), and efficient operation under zero bias. Key performance metrics included a responsivity of 12.6 mA W<sup>-1</sup>, detectivity of 9.31 ×"],"journal":["RSC advances"],"pagination":["5455-5465"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12834207"],"repository":["biostudies-literature"],"pubmed_title":["Design and fabrication of a zero-bias visible light photodetector based on a coumarin-derived Schiff base thin film."],"pmcid":["PMC12834207"],"pubmed_authors":["K A J","Shil S","Kekuda D","Anil Kumar NV","Sharma I"],"additional_accession":[]},"is_claimable":false,"name":"Design and fabrication of a zero-bias visible light photodetector based on a coumarin-derived Schiff base thin film.","description":"A self-powered visible-light photodetector was fabricated using a coumarin-derived Schiff base, 4-FMCSB, as the active layer. The compound was synthesized <i>via</i> a two-step process and characterized using FT-IR, NMR, MALDI-TOF-MS, and UV-vis spectroscopy. The optical band gap of 4-FMCSB was determined to be 2.33 eV, with DFT calculations confirming a HOMO-LUMO gap of 2.79 eV. Thin films of 4-FMCSB were deposited on ITO substrates <i>via</i> spin coating, and aluminium contacts were thermally evaporated to form Al/4-FMCSB/ITO photodetectors. The device exhibited a strong rectification ratio, rapid photo response (rise time: 510 ms; fall time: 210 ms), and efficient operation under zero bias. Key performance metrics included a responsivity of 12.6 mA W<sup>-1</sup>, detectivity of 9.31 ×","dates":{"release":"2026-01-01T00:00:00Z","publication":"2026 Jan","modification":"2026-06-13T05:28:03.828Z","creation":"2026-06-13T03:09:15.966Z"},"accession":"S-EPMC12834207","cross_references":{"pubmed":["41602198"],"doi":["10.1039/d5ra09436d"]}}