UM
Extending the environmental lifetime of unpackaged perovskite solar cells through interfacial design
Chen H.1; Hou Y.1; Halbig C.E.1; Chen S.1; Zhang H.1; Li N.1; Guo F.1; Tang X.1; Gasparini N.1; Levchuk I.1; Kahmann S.1; Ramirez Quiroz C.O.1; Osvet A.1; Eigler S.1; Brabec C.J.1
2016
Source PublicationJournal of Materials Chemistry A
ISSN20507496 20507488
Volume4Issue:30Pages:11604-11610
AbstractSolution-processed oxo-functionalized graphene (oxo-G ) is employed to substitute hydrophilic PEDOT:PSS as an anode interfacial layer for perovskite solar cells. The resulting devices exhibit a reasonably high power conversion efficiency (PCE) of 15.2% in the planar inverted architecture with oxo-G as a hole transporting material (HTM), and most importantly, deploy the full open-circuit voltage (V ) of up to 1.1 V. Moreover, oxo-G effectively slows down the ingress of water vapor into the device stack resulting in significantly enhanced environmental stability of unpackaged cells under illumination with 80% of the initial PCE being reached after 500 h. Without encapsulation, ∼60% of the initial PCE is retained after ∼1000 h of light soaking under 0.5 sun and ambient conditions maintaining the temperature beneath 30 °C. Moreover, the unsealed perovskite device retains 92% of its initial PCE after about 1900 h under ambient conditions and in the dark. Our results underpin that controlling water diffusion into perovskite cells through advanced interface engineering is a crucial step towards prolonged environmental stability.
DOI10.1039/c6ta03755k
URLView the original
Language英語
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Cited Times [WOS]:28   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Affiliation1.Friedrich-Alexander-Universität Erlangen-Nürnberg
2.Das Bayerische Zentrum für Angewandte Energieforschung e.V.
3.University of Groningen
4.Chalmers University of Technology
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Chen H.,Hou Y.,Halbig C.E.,et al. Extending the environmental lifetime of unpackaged perovskite solar cells through interfacial design[J]. Journal of Materials Chemistry A,2016,4(30):11604-11610.
APA Chen H..,Hou Y..,Halbig C.E..,Chen S..,Zhang H..,...&Brabec C.J..(2016).Extending the environmental lifetime of unpackaged perovskite solar cells through interfacial design.Journal of Materials Chemistry A,4(30),11604-11610.
MLA Chen H.,et al."Extending the environmental lifetime of unpackaged perovskite solar cells through interfacial design".Journal of Materials Chemistry A 4.30(2016):11604-11610.
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