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dc.contributor.author박희준-
dc.date.accessioned2019-08-26T05:24:31Z-
dc.date.available2019-08-26T05:24:31Z-
dc.date.issued2019-03-
dc.identifier.citationADVANCED SCIENCE , v.6 , NO.6 , no. 1802163en_US
dc.identifier.issn2198-3844-
dc.identifier.urihttps://onlinelibrary.wiley.com/doi/full/10.1002/advs.201802163-
dc.identifier.urihttp://repository.hanyang.ac.kr/handle/20.500.11754/109919-
dc.description.abstractMethoxy-functionalized triphenylamine-imidazole derivatives that can simultaneously work as hole transport materials (HTMs) and interface-modifiers are designed for high-performance and stable perovskite solar cells (PSCs). Satisfying the fundamental electrical and optical properties as HTMs of p-i-n planar PSCs, their energy levels can be further tuned by the number of methoxy units for better alignment with those of perovskite, leading to efficient hole extraction. Moreover, when they are introduced between perovskite photoabsorber and low-temperature solution-processed NiOx interlayer, widely featured as an inorganic HTM but known to be vulnerable to interfacial defect generation and poor contact formation with perovskite, nitrogen and oxygen atoms in those organic molecules are found to work as Lewis bases that can passivate undercoordinated ion-induced defects in the perovskite and NiOx layers inducing carrier recombination, and the improved interfaces are also beneficial to enhance the crystallinity of perovskite. The formation of Lewis adducts is directly observed by IR, Raman, and X-ray photoelectron spectroscopy, and improved charge extraction and reduced recombination kinetics are confirmed by time-resolved photoluminescence and transient photovoltage experiments. Moreover, UV-blocking ability of the organic HTMs, the ameliorated interfacial property, and the improved crystallinity of perovskite significantly enhance the stability of PSCs under constant UV illumination in air without encapsulation.en_US
dc.description.sponsorshipZ.L., B.H.J., and S.J.H. contributed equally to this work. This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF-2017R1D1A1B03034711 and NRF-2017R1D1A3B03033045). This work was also partially supported by the Korea Institute of Energy Technology Evaluation and Planning (KETEP) and granted financial resource from the MOTIE (20164030201380).en_US
dc.language.isoenen_US
dc.publisherWILEYen_US
dc.subjectdefect passivationen_US
dc.subjecthole transport materialsen_US
dc.subjectperovskite solar cellsen_US
dc.subjectUV durabilityen_US
dc.titleBifacial Passivation of Organic Hole Transport Interlayer for NiOx-Based p-i-n Perovskite Solar Cellsen_US
dc.typeArticleen_US
dc.identifier.doi10.1002/advs.201802163-
dc.relation.journalADVANCED SCIENCE-
dc.contributor.googleauthorLi, Zijia-
dc.contributor.googleauthorJo, Bong Hyun-
dc.contributor.googleauthorHwang, Su Jin-
dc.contributor.googleauthorKim, Tae Hak-
dc.contributor.googleauthorSomasundaram, Sivaraman-
dc.contributor.googleauthorKamaraj, Eswaran-
dc.contributor.googleauthorBang, Jiwon-
dc.contributor.googleauthorAhn, Tae Kyu-
dc.contributor.googleauthorPark, Sanghyuk-
dc.contributor.googleauthorPark, Hui Joon-
dc.relation.code2019036119-
dc.sector.campusS-
dc.sector.daehakCOLLEGE OF ENGINEERING[S]-
dc.sector.departmentDEPARTMENT OF ORGANIC AND NANO ENGINEERING-
dc.identifier.pidhuijoon-
dc.identifier.orcidhttps://orcid.org/0000-0003-4607-207X-


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