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Stable perovskite based photodetector in impedance and capacitance mode

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dc.citedby11
dc.contributor.authorQasuria T.A.en_US
dc.contributor.authorAlam S.en_US
dc.contributor.authorKarimov K.S.en_US
dc.contributor.authorFatima N.en_US
dc.contributor.authorAlharthi Y.S.en_US
dc.contributor.authorAlharbi H.F.en_US
dc.contributor.authorAlharthi N.H.en_US
dc.contributor.authorAmin N.en_US
dc.contributor.authorAkhtaruzzaman M.en_US
dc.contributor.authorid36180306200en_US
dc.contributor.authorid57213490911en_US
dc.contributor.authorid35610344300en_US
dc.contributor.authorid56567742200en_US
dc.contributor.authorid57190339662en_US
dc.contributor.authorid57188221000en_US
dc.contributor.authorid55942800300en_US
dc.contributor.authorid7102424614en_US
dc.contributor.authorid57195441001en_US
dc.date.accessioned2023-05-29T07:22:32Z
dc.date.available2023-05-29T07:22:32Z
dc.date.issued2019
dc.description.abstractNowadays perovskite emerges as a promising photosensitive material for next-generation solution-processed devices. Perovskite-based solar cells degrade in ambient conditions up to some extent, after which they are discarded. In our work, we are using reusing the degraded cells as a high-performance stable perovskite-based photodetector. The symmetry of the detector is FTO/PEDOT:PSS/Perovskite/PC61BM/CdS/Ag showing sensitivity to light with respect to (w.r.t) impedance and capacitance. To enhance the excitons generation and absorption of light, the electron transport layer of cadmium sulfide along with PC61BM is selected and PEDOT:PSS layer is used for hole transportation. Atomic force microscopy, X-ray diffraction, and UV-absorption spectrum were obtained to study the surface morphology, composition, and absorption of the perovskite layer. The electric parameters within the frequency range 100 Hz to 200 kHz of samples under the effect of light were investigated. Experimental results showed that with the change in light intensity from dark to 325 W/m2, the highest impedance and capacitance were observed at 100 Hz. The impedance sensitivity is ?126.154 k? m2/W and the uppermost capacitance sensitivity w.r.t light intensity is 6.77 pF m2/W. Frequency-impedance and capacitance relationships and sensitivities were also measured. The results showed that in the range from 100 Hz to 200 kHz the maximum impedance sensitivity is ?343.37 ?/Hz in dark condition. While the capacitance sensitivity was highest when light intensity was 325 W/m2 (?37.27 pF/kHz), respectively. We attribute these observations due to the generation of electron-hole pairs under light and by the increase of their concentration, by the presence of the built-in capacitance and possible frequency dependence of the mobility of the charges. � 2019 The Authorsen_US
dc.description.natureFinalen_US
dc.identifier.ArtNo102699
dc.identifier.doi10.1016/j.rinp.2019.102699
dc.identifier.scopus2-s2.0-85072868248
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85072868248&doi=10.1016%2fj.rinp.2019.102699&partnerID=40&md5=78b1ef4b114c13313af5e7afdcd941c8
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/24273
dc.identifier.volume15
dc.publisherElsevier B.V.en_US
dc.relation.ispartofAll Open Access, Gold
dc.sourceScopus
dc.sourcetitleResults in Physics
dc.titleStable perovskite based photodetector in impedance and capacitance modeen_US
dc.typeArticleen_US
dspace.entity.typePublication
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