Light-Induced Performance Enhancement of Supercapacitors through Thiol-Ene Click Surface Functionalization of Thienothiophene-BODIPY Porous Polymers

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dc.authorid0000-0003-4448-1101
dc.authorid0000-0002-0840-4953
dc.authorid0000-0001-7939-5380
dc.authorid0000-0002-7935-3954
dc.authorid0000-0003-0238-0169
dc.authorid0000-0001-8352-8326
dc.contributor.authorOzdemir, Mucahit
dc.contributor.authorUlucay, Sude
dc.contributor.authorSevimli, Esra
dc.contributor.authorAltinisik, Sinem
dc.contributor.authorKoksoy, Baybars
dc.contributor.authorYalcin, Bahattin
dc.contributor.authorKoyuncu, Sermet
dc.date.accessioned2026-02-08T15:15:29Z
dc.date.available2026-02-08T15:15:29Z
dc.date.issued2025
dc.departmentBursa Teknik Üniversitesi
dc.description.abstractPhotoassisted supercapacitors are emerging as next-generation energy storage devices that synergistically combine light harvesting and electrochemical energy storage. BODIPY-based semiconductors, known for their strong light absorption, tunable electronic properties, and photostability, have recently attracted attention as efficient photoactive components in such systems. This study investigates the potential use of cross-linked thieno[3,2-b]thiophene-BODIPY polymer as an electrode material for photoassisted supercapacitors, prepared through a surface functionalization approach using thiol-ene click chemistry. The polymer exhibited broad-band absorption and a low band gap due to extended conjugation, as confirmed by UV-vis and fluorescence spectroscopy, along with comprehensive optical, electrochemical, and morphological characterization. DFT calculations showed that the HOMO-LUMO energy gap narrows under illumination, indicating improved charge transport. Cyclic voltammetry (CV), galvanostatic charge-discharge (GCD), and electrochemical impedance spectroscopy (EIS) measurements confirmed that the cross-linked polymer offers high capacitance, low internal resistance, and long cycle stability. In terms of supercapacitor performance, a photoinduced enhancement of up to 50% in specific capacitance was observed under light. At a current density of 1.0 A/g, the specific capacitance increased from 240 F/g in the dark to 362 F/g under illumination. Stability tests conducted over 2000 cycles demonstrated that the supercapacitor retained 90% of its initial capacitance.
dc.description.sponsorshipResearch Foundation of Marmara University, Commission of Scientific Research Project (BAPKO) ADEP [ADF-2022-10738]
dc.description.sponsorshipThis work was supported by the Research Foundation of Marmara University, Commission of Scientific Research Project (BAPKO) ADEP ADF-2022-10738.
dc.identifier.doi10.1021/acsaem.5c02377
dc.identifier.endpage17245
dc.identifier.issn2574-0962
dc.identifier.issue23
dc.identifier.startpage17232
dc.identifier.urihttps://doi.org/10.1021/acsaem.5c02377
dc.identifier.urihttps://hdl.handle.net/20.500.12885/5799
dc.identifier.volume8
dc.identifier.wosWOS:001584763000001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.language.isoen
dc.publisherAmer Chemical Soc
dc.relation.ispartofAcs Applied Energy Materials
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.snmzWOS_KA_20260207
dc.subjectBODIPY
dc.subjectcross-linked polymer
dc.subjectsupercapacitor
dc.subjectelectrochemistry
dc.subjectphotophysics
dc.titleLight-Induced Performance Enhancement of Supercapacitors through Thiol-Ene Click Surface Functionalization of Thienothiophene-BODIPY Porous Polymers
dc.typeArticle

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