Photophysical insights into TFHA-OP: Optimizing Optical Performance Through Solvent and Film Thickness Control

dc.contributor.authorEkici, Oner
dc.contributor.authorOzen, Furkan
dc.contributor.authorOzen, Leyla Babali
dc.contributor.authorErsanli, Cem Cuneyt
dc.contributor.authorGunduz, Bayram
dc.contributor.authorCin, Gunseli Turgut
dc.date.accessioned2026-04-25T14:19:59Z
dc.date.available2026-04-25T14:19:59Z
dc.date.issued2025
dc.departmentSinop Üniversitesi
dc.description.abstractConjugated organic semiconductors with donor-it-acceptor (D-it-A) structures are pivotal for optoelectronic applications. This study investigates the optical properties of 2-(4-trifluoromethylphenyl)-3-(4-hydroxyphenyl) acrylonitrile (TFHA-OP), focusing on solvent and film thickness effects.UV-Vis spectroscopy shows that DMSO reduces the optical band gap t o 3.107 eV, compared to acetone, while increasing film thickness further lowers the band gap to 2.965 eV at 28.7 mu m, alongside an enhanced refractive index. TD-DFT and HOMO-LUMO analysis support these findings, confirming significant solvent and thickness dependence. Importantly, this study evaluates the nonlinear optical (NLO) properties in solution for the first time, revealing that DMSO significantly boosts beta tot by 2.7-fold. These findings underscore TFHA-OP's strong light-matter interaction in thin films, positioning it as a promising candidate for efficient, low-cost, and flexible optoelectronic devices, such as photovoltaics and sensors.
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [KBAG-119Z608]; Akdeniz University Scientific Research Projects Unit (AU-BAP) [FBA-2020-5403, FDK-2022-6056]
dc.description.sponsorshipWe would like to thank the Scientific and Technological Research Council of Turkey (TUBITAK, KBAG-119Z608) and Akdeniz University Scientific Research Projects Unit (AU-BAP, FBA-2020-5403 and FDK-2022-6056) for their financial support.
dc.identifier.doi10.1016/j.physb.2025.417524
dc.identifier.issn0921-4526
dc.identifier.issn1873-2135
dc.identifier.orcid0000-0001-5800-5021
dc.identifier.orcid0000-0001-9023-6604
dc.identifier.orcid0000-0001-9658-8344
dc.identifier.scopus2-s2.0-105009253818
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://doi.org/10.1016/j.physb.2025.417524
dc.identifier.urihttps://hdl.handle.net/11486/8304
dc.identifier.volume714
dc.identifier.wosWOS:001523288600001
dc.identifier.wosqualityQ2
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofPhysica B-Condensed Matter
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_WOS_20260420
dc.subjectOrganic optoelectronics
dc.subjectOptical properties
dc.subjectSolvent effects
dc.subjectFilm thickness effects
dc.subjectNonlinear optics (NLO)
dc.subjectHOMO-LUMO
dc.titlePhotophysical insights into TFHA-OP: Optimizing Optical Performance Through Solvent and Film Thickness Control
dc.typeArticle

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