Photo-sensor characteristics of tannic acid (C76H52O46)/n-Si hybrid bio-photodiode for visible and UV lights detection

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dc.contributor.authorYildirim, Fatma
dc.contributor.authorOrhan, Zeynep
dc.contributor.authorTaskin, Mesut
dc.contributor.authorIncekara, Umit
dc.contributor.authorBiber, Mehmet
dc.contributor.authorAydogan, S.
dc.date.accessioned2024-02-23T14:13:21Z
dc.date.available2024-02-23T14:13:21Z
dc.date.issued2022
dc.departmentNEÜen_US
dc.description.abstractWe present the electo-optical characterization of tannic acid (TA)/n-Si heterojunction for visible and UV lights (365 nm and 395 nm). The TA was deposited on n-Si by spin coating. The morphological and structural analyses of TA film were carried out by Scanning Electron Microscopy (SEM) and Energy-dispersive X-ray (EDX) analyses, respectively. The electro-optical performance of the TA/n-Si bio-photodiode were investigated by I-V measurements for 10 mW/cm(2), 15 mW/cm(2), 20 mW/cm(2) and 30 mW/cm(2) visible light intensities in addition to UV light. Light-dependent the responsivity, ON/OFF ratio, detectivity, shunt resistance and series resistance were calculated. Maximum values of responsivity, detectivity and ON/OFF ratio were determined as 11.9 mA/W (-1.5 V), 3.2 x 109 Jones (at-0.42 V) and 194 (30 mW/cm2) (AM 1.5 G), at-2 V respectively. Whereas, they were determined to be 0.1 A/W, 4 x 109 Jones and 14977, respectively for UV light. Furthermore, the dielectric properties of the TA/n-Si heterostructure also were investigated from the dark Capacitance/Conductance-Voltage measurements. It was seen that both real and imaginary parts of the dielectric constants was frequency dependent. Experimental results show that the TA/n-Si device with a high rectification ratio of 2263 is a potential candidate for detecting visible and UV lights.en_US
dc.identifier.doi10.1016/j.optlastec.2022.108194
dc.identifier.issn0030-3992
dc.identifier.issn1879-2545
dc.identifier.scopus2-s2.0-85129294755en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1016/j.optlastec.2022.108194
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12404
dc.identifier.volume153en_US
dc.identifier.wosWOS:000794987300001en_US
dc.identifier.wosqualityQ1en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherElsevier Sci Ltden_US
dc.relation.ispartofOptics And Laser Technologyen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectBio-Photodiodeen_US
dc.subjectTannic Aciden_US
dc.subjectResponsivityen_US
dc.subjectOn/Off Ratioen_US
dc.subjectDielectric Constanten_US
dc.titlePhoto-sensor characteristics of tannic acid (C76H52O46)/n-Si hybrid bio-photodiode for visible and UV lights detectionen_US
dc.typeArticleen_US

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