Deconvoluting the Impedance Response of Halide Perovskite Single Crystals: The Distribution of Relaxation Time Method

Basit Öğe Kaydı
dc.contributor.authorPandey, Siddhi Vinayak
dc.contributor.authorParikh, Nishi
dc.contributor.authorMahapatra, Apurba
dc.contributor.authorKalam, Abul
dc.contributor.authorAkin, Seckin
dc.contributor.authorSatapathi, Soumitra
dc.contributor.authorProchowicz, Daniel
dc.date.accessioned2024-02-23T14:16:34Z
dc.date.available2024-02-23T14:16:34Z
dc.date.issued2023
dc.departmentNEÜen_US
dc.description.abstractElectrochemical impedance spectroscopy (EIS) has beenemergingas a promising tool to study the core mechanisms occurring withinmetal halide perovskites (MHPs). Generally, MHPs show one or two semicirclesin the Nyquist spectra in the probed frequency range. However, inthe presence of external stimuli, often a Warburg diffusion or aninductive loop is observed at low frequencies. In such cases, a comparisonof low-frequency parameters in both cases cannot be drawn becauseof the lack of a unique electrical circuit (EC). To overcome the issueof lack of EC, transformation of the frequency-domain technique tothe time domain is carried out. In this work, we investigated threedifferent cases of MAPbI(3), MAPbBr(3), and surface-passivatedMAPbBr(3) single crystals (SCs), which showed one suppressedsemicircle, two semicircles, and a Warburg-like diffusion, respectively,in the Nyquist response of EIS. Next, we transformed these spectrainto the time domain using the distribution of relaxation times (DRT)technique, a machine-learning-assisted tool. The obtained resultssuggest that in the case of Nyquist spectra with one semicircle (thecase of MAPbI(3) SCs), the observed time constants usingEC and DRT are close enough. However, in the case of MAPbBr(3) SC, three different time constants are obtained, associated withhigh, medium, and low frequencies, although the Nyquist response showedtwo semicircles. At last, in the presence of surface-passivated SCs,the Warburg-like feature changes significantly for different passivationtimes. Interestingly, the DRT spectra showed almost similar time constants,through which reliable information on the low-frequency RC can beextracted. Thus, DRT can pave the way for the easy and reliable interpretationof EIS spectra, which is not possible using EC.en_US
dc.description.sponsorshipDean of Scientific Research, King Khalid University [RGP2/353/44]; ORSP of Pandit Deendayal Energy University; DST SERB [IPA/2021/96]en_US
dc.description.sponsorshipA.K. is thankful to the Dean of Scientific Research, King Khalid University, for financial support through grant number RGP2/353/44. P.Y. acknowledges the ORSP of Pandit Deendayal Energy University and DST SERB (IPA/2021/96) for financial support.en_US
dc.identifier.doi10.1021/acs.jpcc.3c01850
dc.identifier.endpage11615en_US
dc.identifier.issn1932-7447
dc.identifier.issn1932-7455
dc.identifier.issue24en_US
dc.identifier.scopus2-s2.0-85163501943en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage11609en_US
dc.identifier.urihttps://doi.org/10.1021/acs.jpcc.3c01850
dc.identifier.urihttps://hdl.handle.net/20.500.12452/12722
dc.identifier.volume127en_US
dc.identifier.wosWOS:001002588800001en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofJournal Of Physical Chemistry Cen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subject[Keyword Not Available]en_US
dc.titleDeconvoluting the Impedance Response of Halide Perovskite Single Crystals: The Distribution of Relaxation Time Methoden_US
dc.typeArticleen_US

Dosyalar

Koleksiyon

WoS İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu