A Concept for Dopant-Free Hole Transport Layers for Efficient and Stable New-Generation Perovskite Solar Cells

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dc.contributor.authorAkin Kara, Duygu
dc.contributor.authorTurgut, Sevdiye Basak
dc.contributor.authorCirak, Dilek
dc.contributor.authorKaraman, Merve
dc.contributor.authorCan, Mustafa
dc.contributor.authorKoyuncu, Sermet
dc.contributor.authorGultekin, Burak
dc.date.accessioned2024-08-31T07:50:05Z
dc.date.available2024-08-31T07:50:05Z
dc.date.issued2024
dc.departmentEge Üniversitesien_US
dc.description.abstractA new donor-acceptor type polymers containing benzothiadiazole (HB1) and benzoselenidiazole (HB2) as acceptor units were prepared or use as hole transport layers in perovskite solar cells (PSCs). It was observed that the electrochemical HOMO-LUMO band gap narrowed from 2.74 to 1.88 depending on the variation in the acceptor unit. In addition, the charge-transfer band at 580 nm undergoes a 30 nm red-shift and broadens to the near-infrared region. HB1 and HB2 were introduced as dopant-free HTMs to replace the commonly used 2,2 ',7,7 '-tetrakis[N,N-di(4-methoxyphenyl)amino]-9-9 '-spirobifluorene (spiro-OMeTAD) in planar heterojunction n-i-p type of PSCs. Compared with HB2, HB1 exhibited better film morphology and mobility, resulting in improved charge-carrier extraction and transport. Dopant-free HB1 devices fabricated using the Cs0.05FA0.79MA0.16-Pb (IxBr1-x)3 triple cation perovskite displayed a champion power conversion efficiency of 11.69% under one sun illumination (100 mW cm(-2)) which is higher than the efficiency of HB2-based devices. The inflated performance was attributed to the reduced charge recombination and improved conductivity. In addition, these new HTMs exhibited higher hydrophobicity and thermal stability than their doped spiro-OMeTAD counterpart, making it possible to achieve good stability.en_US
dc.description.sponsorshipTUBITAK1003-Primary SubjectsR and D Funding Program [218M940]en_US
dc.description.sponsorshipTUBITAK1003-Primary SubjectsR and D Funding Program (Project No: 218M940)en_US
dc.identifier.doi10.1021/acsaenm.3c00818
dc.identifier.issn2771-9545
dc.identifier.urihttps://doi.org/10.1021/acsaenm.3c00818
dc.identifier.urihttps://hdl.handle.net/11454/105108
dc.identifier.wosWOS:001273639400001en_US
dc.identifier.wosqualityN/Aen_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.language.isoenen_US
dc.publisherAmer Chemical Socen_US
dc.relation.ispartofAcs Applied Engineering Materialsen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.snmz20240831_Uen_US
dc.subjectPolymeren_US
dc.subjectHole Transport Layeren_US
dc.subjectPerovskite Solarcellen_US
dc.subjectDopant-Freeen_US
dc.subjectDft Calculationen_US
dc.titleA Concept for Dopant-Free Hole Transport Layers for Efficient and Stable New-Generation Perovskite Solar Cellsen_US
dc.typeArticleen_US

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