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dc.contributor.authorChang, Xiaoming
dc.contributor.authorFang, Junjie
dc.contributor.authorFan, Yuanyuan
dc.contributor.authorLuo, Tao
dc.contributor.authorSu, Hang
dc.contributor.authorZhang, Yalan
dc.contributor.authorLu, Jing
dc.contributor.authorTsetseris, Leonidas
dc.contributor.authorAnthopoulos, Thomas D.
dc.contributor.authorLiu, Shengzhong (Frank)
dc.contributor.authorZhao, Kui
dc.date.accessioned2020-09-07T13:55:55Z
dc.date.available2020-09-07T13:55:55Z
dc.date.issued2020-08-31
dc.date.submitted2020-02-21
dc.identifier.citationChang, X., Fang, J., Fan, Y., Luo, T., Su, H., Zhang, Y., … Zhao, K. (2020). Printable CsPbI 3 Perovskite Solar Cells with PCE of 19% via an Additive Strategy. Advanced Materials, 2001243. doi:10.1002/adma.202001243
dc.identifier.issn0935-9648
dc.identifier.pmid32864773
dc.identifier.doi10.1002/adma.202001243
dc.identifier.urihttp://hdl.handle.net/10754/664998
dc.description.abstractAll-inorganic CsPbI3 holds promise for efficient tandem solar cells, but reported fabrication techniques are not transferrable to scalable manufacturing methods. Herein, printable CsPbI3 solar cells are reported, in which the charge transporting layers and photoactive layer are deposited by fast blade-coating at a low temperature (≤100 °C) in ambient conditions. High-quality CsPbI3 films are grown via introducing a low concentration of the multifunctional molecular additive Zn(C6 F5 )2 , which reconciles the conflict between air-flow-assisted fast drying and low-quality film including energy misalignment and trap formation. Material analysis reveals a preferential accumulation of the additive close to the perovskite/SnO2 interface and strong chemisorption on the perovskite surface, which leads to the formation of energy gradients and suppressed trap formation within the perovskite film, as well as a 150 meV improvement of the energetic alignment at the perovskite/SnO2 interface. The combined benefits translate into significant enhancement of the power conversion efficiency to 19% for printable solar cells. The devices without encapsulation degrade only by ≈2% after 700 h in air conditions.
dc.description.sponsorshipThis work was supported by the National Key Research and Development Program of China (2016YFA0202403, 2017YFA0204800), Key Program project of the National Natural Science Foundation of China (51933010), National Natural Science Foundation of China (61974085), National University Research Fund (GK201802005), the 111 Project (B14041), the National 1000 Talents Plan program (1110010341).
dc.publisherWiley
dc.relation.urlhttps://onlinelibrary.wiley.com/doi/abs/10.1002/adma.202001243
dc.rightsArchived with thanks to Advanced materials (Deerfield Beach, Fla.)
dc.titlePrintable CsPbI3 Perovskite Solar Cells with PCE of 19% via an Additive Strategy.
dc.typeArticle
dc.contributor.departmentPhysical Science and Engineering (PSE) Division
dc.contributor.departmentMaterial Science and Engineering Program
dc.contributor.departmentKAUST Solar Center (KSC)
dc.identifier.journalAdvanced materials (Deerfield Beach, Fla.)
dc.rights.embargodate2021-09-01
dc.eprint.versionPost-print
dc.contributor.institutionKey Laboratory of Applied Surface and Colloid ChemistryMinistry of EducationShaanxi Key Laboratory for Advanced Energy DevicesShaanxi Engineering Lab for Advanced Energy TechnologySchool of Materials Science and EngineeringShaanxi Normal University Xi'an 710119 China
dc.contributor.institutionDalian National Laboratory for Clean EnergyiChEMDalian Institute of Chemical PhysicsChinese Academy of Sciences Dalian 116023 China
dc.contributor.institutionDepartment of PhysicsNational Technical University of Athens Athens GR-15780 Greece
dc.identifier.pages2001243
kaust.personAnthopoulos, Thomas D.
dc.date.accepted2020-07-13
dc.identifier.eid2-s2.0-85089961307
refterms.dateFOA2020-09-09T06:23:17Z
dc.date.published-online2020-08-31
dc.date.published-print2020-10


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