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Journal Article Highly Flexible, High-Performance Perovskite Solar Cells with Adhesion Promoted AuCl3-doped Graphene Electrodes
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Authors
허진혁, 신동희, 장민혁, Lee Myung Lae, Kang Mangu, 임상혁
Issue Date
201709
Source
Journal of Materials Chemistry A : Materials for Energy and Sustainability, v.5 no.40, pp.21146-21152
ISSN
2050-7488
Publisher
Royal Society of Chemistry (RSC)
DOI
https://dx.doi.org/10.1039/c7ta06465a
Project Code
17HB1400, 3-dimensional creative materials for high performance flexible ICT devices, Lee Myung Lae
Abstract
Super flexible TCO-free FAPbI3-xBrx planar type inverted perovskite solar cells with a 17.9% power conversion efficiency under 1 sun conditions were demonstrated by introducing an APTES (3-aminopropyl triethoxysilane) adhesion promoter between a PET flexible substrate and a AuCl3-doped single-layer graphene transparent electrode (TCE). Due to the formation of covalent bonds by the APTES inter-layer, the AuCl3-GR/APTES/PET substrate had excellent flexibility, whereas the AuCl3-GR/PET substrate and the ITO/PET substrate had significant degradation of the sheet resistance after a bending test due to the break-off or delamination of AuCl3-GR from the PET substrate and the cracking of ITO. Accordingly, the perovskite solar cells constructed on the AuCl3-GR/APTES/PET TCE substrate exhibited excellent bending stability and they maintained their PCE at over 90% of the initial value after 100 bending cycles at R ?돟 4 mm.
KSP Keywords
3-Aminopropyltriethoxysilane(APTES), Adhesion promoter, Conversion efficiency(C.E.), Covalent bonds, Flexible substrate, High performance, Highly flexible, Initial value, Inter-layer, PET substrate, TCO-free