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Facile synthesized organic hole transporting material for perovskite solar cell with efficiency of 19.8%
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. Dalian University of Technology (DUT), China.
KTH, School of Chemical Science and Engineering (CHE), Chemistry, Organic Chemistry. KTH, School of Chemical Science and Engineering (CHE), Centres, Centre of Molecular Devices, CMD. Dalian University of Technology (DUT), China.ORCID iD: 0000-0002-4521-2870
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2016 (English)In: Nano Energy, ISSN 2211-2855, Vol. 23, 138-144 p.Article in journal (Refereed) PublishedText
Abstract [en]

The exploration of alternative molecular hole-transporting materials (HTMs) specifically for high performance perovskite solar cells (PSCs) is a relatively recent research area. Aiming for further increasing the 'efficiency-cost ratio' of PSCs, we developed a spiro[fluorene-9,9'-xanthene] based HTM (X59) via two-step synthesis from commercial precursors for perovskite solar cells (PSCs) that works as effectively as the well-known HTM-Spiro-OMeTAD-based device under the same conditions. The molecular structure was analyzed by X-ray crystallography indicating a similar packing regime as for Spiro-OMeTAD. An impressive PCE of 19.8% was achieved by using X59 as HTM in PSC, which can compete with the record PCE of 20.8% by using the state-of-the-art-HTM Spiro-OMeTAD (Tress et al., 2016) [1]. The optimized devices employing X59 as HTM exhibited minimized hysteresis, excellent reproducibility and reasonable stability under dark and dry conditions. The present finding highlights the potential of spiro-type HTM for high performance PSCs and paves the way to a much deceased fabrication cost for potential commercialization of perovskite solar panels.

Place, publisher, year, edition, pages
Elsevier, 2016. Vol. 23, 138-144 p.
Keyword [en]
Hole transporting material, Hysteresis, Perovskite, Single crystal, Crystallography, Efficiency, Hole mobility, Perovskite solar cells, Single crystals, X ray crystallography, Exploration of alternatives, Hole-transporting materials, Optimized devices, Organic hole transporting materials, Recent researches, Reproducibilities, State of the art, Two-step synthesis, Solar cells
National Category
Chemical Sciences
Identifiers
URN: urn:nbn:se:kth:diva-186987DOI: 10.1016/j.nanoen.2016.03.020ISI: 000375045900017ScopusID: 2-s2.0-84962374920OAI: oai:DiVA.org:kth-186987DiVA: diva2:928812
Funder
Swedish Energy AgencySwedish Research CouncilKnut and Alice Wallenberg Foundation
Note

QC 20160516

Available from: 2016-05-16 Created: 2016-05-16 Last updated: 2016-05-30Bibliographically approved

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Xu, BoSun, Licheng
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