Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells
Hou Y.1; Chen W.1; Baran D.1; Stubhan T.1; Luechinger N.A.4; Hartmeier B.4; Richter M.1; Min J.1; Chen S.1; Quiroz C.O.R.1; Li N.1; Zhang H.1; Heumueller T.1; Matt G.J.1; Osvet A.1; Forberich K.1; Zhang Z.-G.3; Li Y.3; Winter B.1; Schweizer P.1; Spiecker E.1; Brabec C.J.1
Source PublicationAdvanced Materials
ISSN15214095 09359648
AbstractAn experiment was conducted to demonstrate that low-temperature processed NiO-based nanocrystal ink (LT-NiO) has the potential to form an almost loss-free hole selective interface for flat heterojunction perovskite-based solar cells. First, The patterned ITO substrates were ultrasonic cleaned with acetone and isopropanol for 10 min each. On cleaned ITO substrate, a dense and smooth layer of LT-NiO was deposited by spin coating and followed by annealing at 70?230°C for 10 min in air to remove organic components. The as-prepared perovskite precursor solution was filtered using 0.45 μm PTFE syringe filter and coated onto the ITO/LT-NiO substrate at a speed of 4000 r.p.m. for 35 s. J-V characteristics of all the devices were measured using a source measurement unit from BoTest. FTPS:FTPS-EQE measurements were carried out using a Vertex 70 from Brucker optics, equipped with QTH lamp, quartz beam splitter and external detector option. A major improvement in open circuit voltage is found by replacing PEDOT:PSS with LT-NiO. A detailed analysis reveals that LT-NiO significantly reduces non-radiative recombination at the PEDOT:PSS/perovskite interface and further enhances the radiative LED efficiency towards unity which brings open circuit voltage closer to the radiative limit.
Keywordlow temperature processing nickel oxide non-radiative voltage loss perovskite solar cells
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Cited Times [WOS]:154   [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.Institute of Chemistry Chinese Academy of Sciences
4.Nanograde Ltd.
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Hou Y.,Chen W.,Baran D.,et al. Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells[J]. Advanced Materials,2016:5112-5120.
APA Hou Y..,Chen W..,Baran D..,Stubhan T..,Luechinger N.A..,Hartmeier B..,Richter M..,Min J..,Chen S..,Quiroz C.O.R..,Li N..,Zhang H..,Heumueller T..,Matt G.J..,Osvet A..,Forberich K..,Zhang Z.-G..,Li Y..,Winter B..,...&Brabec C.J..(2016).Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells.Advanced Materials,5112-5120.
MLA Hou Y.,et al."Overcoming the Interface Losses in Planar Heterojunction Perovskite-Based Solar Cells".Advanced Materials (2016):5112-5120.
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