Multispectral analysis of photosensitive perovskite-E7 liquid crystal composites: Correlating optical response with electrical properties

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dc.contributor.authorDemir, Ahmet
dc.date.accessioned2025-10-11T20:48:28Z
dc.date.available2025-10-11T20:48:28Z
dc.date.issued2025
dc.departmentDüzce Üniversitesien_US
dc.description.abstractThis study investigates the photoresponsive electrical and dielectric characteristics of CH3NH3PbI3-xClx perovskite precursor ink-doped nematic liquid crystal (E7) composite under variable illumination intensities (0-100 mW/cm2). Through comprehensive electrochemical impedance spectroscopy analysis, we observed significant light-dependent modulation of charge transport mechanisms. Electrochemical impedance spectroscopy measurements revealed a 27-fold enhancement in current density under 100 mW/cm2 illumination compared to dark conditions. Complex impedance analysis demonstrated systematic reduction in charge transfer resistance with increasing light intensity, while dielectric studies revealed distinct relaxation processes in low and highfrequency regions. The composite exhibited dual relaxation times (tau 1, tau 2) that decreased from 430 to 90 s at first relaxation region (tau 1), and reaching maximum values from 8x10-4 s to 2.5 x 10-3 s at second relaxation region (tau 2) significantly with increasing illumination. AC conductivity analysis revealed four distinct conduction regions with varying frequency dependencies, suggesting multiple charge transport mechanisms. These findings demonstrate the potential of perovskite-liquid crystal composites for optoelectronic applications requiring tunable electrical and dielectric properties.en_US
dc.identifier.doi10.1016/j.optmat.2025.116878
dc.identifier.issn0925-3467
dc.identifier.issn1873-1252
dc.identifier.scopus2-s2.0-85218878518en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.optmat.2025.116878
dc.identifier.urihttps://hdl.handle.net/20.500.12684/21938
dc.identifier.volume162en_US
dc.identifier.wosWOS:001438810700001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.institutionauthorDemir, Ahmet
dc.language.isoenen_US
dc.publisherElsevieren_US
dc.relation.ispartofOptical Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmzKA_WOS_20250911
dc.subjectHalide Perovskiteen_US
dc.subjectLiquid crystalen_US
dc.subjectPhotoresponsive behavioren_US
dc.subjectImpedance spectroscopyen_US
dc.subjectDielectric relaxationen_US
dc.subjectCharge transport mechanismsen_US
dc.titleMultispectral analysis of photosensitive perovskite-E7 liquid crystal composites: Correlating optical response with electrical propertiesen_US
dc.typeArticleen_US

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