Solvent Engineering of Hole-Transport Layer for Improved Efficiency and Stability in Perovskite Solar Cells

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dc.authorscopusid56996979900
dc.authorscopusid57437124100
dc.authorscopusid58195617000
dc.authorscopusid26655542300
dc.authorscopusid8379291000
dc.contributor.authorMutlu, Adem
dc.contributor.authorBaşak Turgut, Sevdiye
dc.contributor.authorEkici, Alper
dc.contributor.authorGültekin, Burak
dc.contributor.authorZafer, Ceylan
dc.date.accessioned2024-08-25T18:45:59Z
dc.date.available2024-08-25T18:45:59Z
dc.date.issued2023
dc.departmentEge Üniversitesien_US
dc.description.abstractAlthough perovskite solar cells (PSCs) are one of the fastest-growing photovoltaic technologies, many innovations are required to further improve performance and stability. The acetonitrile (ACN) solvent used to dissolve the Li-TFSI salt in Spiro-OMeTAD corrodes the perovskite thin film. In this study, 1-methoxy-2-propanol (1MEO) and 2-ethoxy-ethanol (2ETO) solvents are used by replacing ACN. The utilization of 1MEO results in improved hole mobility in Spiro-OMeTAD and reduction in defects at the perovskite/Spiro-OMeTAD interface, thus diminishing nonradiative recombination. The recombination resistances in the low-frequency range are determined via electrochemical impedance spectroscopy (EIS) and are found to be 3361.9 ohms for ACN-Spiro-OMeTAD, 4406.8 & omega; for 1MEO-Spiro-OMeTAD, and 3815.3 & omega; for 2MEO-Spiro-OMeTAD. These results indicate that the utilization of 1MEO and 2ETO instead of ACN effectively decreases charge recombination in PSCs. As a result, after replacing ACN with 1MEO and 2ETO, PSCs achieve a power conversion efficiency (PCE) of 21.3% and 20.0% respectively, while a PCE of 18.9% is obtained from the control device with ACN. During 45 d stability test, the initial efficiency of the control device decreases by 31.2%, while the 1MEO and 2ETO devices exhibit efficiency reductions of 12.2% and 7.7%, respectively. This study involves the replacement of acetonitrile (ACN) in Spiro-OMeTAD with 1-methoxy-2-propanol (1MEO) and 2-ethoxy-ethanol (2ETO). These solvents improve hole mobility in Spiro-OMeTAD, reducing defects at the perovskite/Spiro-OMeTAD interface and nonradiative recombination. This leads to higher device efficiencies of 21.3% and 20.0% for 1MEO and 2ETO, compared to ACN (18.9%). Modified devices demonstrate better stability during a 45 d test.image & COPY; 2023 WILEY-VCH GmbHen_US
dc.description.sponsorshipThe authors acknowledge the Presidency of Turkish Republic Department of Strategy and Budget for the financial support (project grant no. 2016K12-2841). [2016K12-2841]; Presidency of Turkish Republic Department of Strategy and Budgeten_US
dc.description.sponsorshipThe authors acknowledge the Presidency of Turkish Republic Department of Strategy and Budget for the financial support (project grant no. 2016K12-2841).en_US
dc.identifier.doi10.1002/adem.202301101
dc.identifier.issn1438-1656
dc.identifier.issn1527-2648
dc.identifier.scopus2-s2.0-85172702414en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.urihttps://doi.org/10.1002/adem.202301101
dc.identifier.urihttps://hdl.handle.net/11454/101761
dc.identifier.wosWOS:001072690800001en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.language.isoenen_US
dc.publisherWiley-V C H Verlag Gmbhen_US
dc.relation.ispartofAdvanced Engineering Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.snmz20240825_Gen_US
dc.subjectless-toxic solventsen_US
dc.subjecthole-transport materialsen_US
dc.subjectnonradiative recombinationen_US
dc.subjectperovskitesen_US
dc.subjectstabilityen_US
dc.subjectHalide Perovskitesen_US
dc.subject4-Tert-Butylpyridineen_US
dc.subjectHysteresisen_US
dc.titleSolvent Engineering of Hole-Transport Layer for Improved Efficiency and Stability in Perovskite Solar Cellsen_US
dc.typeArticleen_US

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