Bauer, Michael, Zhu, Hongwei, Baumeler, Thomas, Liu, Yuhang, Eickemeyer, Felix T., Lorenz, Christoph, Mena-Osteritz, Elena, Hertel, Dirk, Olthof, Selina, Zakeeruddin, Shaik Mohammed, Meerholz, Klaus, Graetzel, Michael and Baeuerle, Peter (2021). Cyclopentadiene-Based Hole-Transport Material for Cost-Reduced Stabilized Perovskite Solar Cells with Power Conversion Efficiencies Over 23%. Adv. Energy Mater., 11 (30). WEINHEIM: WILEY-V C H VERLAG GMBH. ISSN 1614-6840

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Abstract

Hole transport materials (HTM) are an important component in perovskite solar cells (PSC). Despite a multitude of HTMs developed in recent years, only few of them lead to solar cells with efficiencies over 20%. Therefore, it is still a challenge to develop high-performing HTMs, which have ideal energy levels of the frontier orbitals, are highly efficient in transporting charges, and stabilize the solar cell at the same time. In this work, the development of a structurally novel molecular HTM, CPDA 1, is described which is based on a common cyclopentadiene core and can be efficiently and inexpensively synthesized from readily available starting materials, which is important for future realization of low-cost photovoltaics on larger scale. Due to excellent optoelectronic, thermal, and transport properties, CPDA 1 not only meets the envisioned properties by reaching high efficiencies of 23.1%, which is among the highest reported to date, but also contributes to a respectable long-term stability of the PSCs.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Bauer, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zhu, HongweiUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baumeler, ThomasUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Liu, YuhangUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Eickemeyer, Felix T.UNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Lorenz, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Mena-Osteritz, ElenaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Hertel, DirkUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Olthof, SelinaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Zakeeruddin, Shaik MohammedUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Meerholz, KlausUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Graetzel, MichaelUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Baeuerle, PeterUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-579364
DOI: 10.1002/aenm.202003953
Journal or Publication Title: Adv. Energy Mater.
Volume: 11
Number: 30
Date: 2021
Publisher: WILEY-V C H VERLAG GMBH
Place of Publication: WEINHEIM
ISSN: 1614-6840
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
HIGHLY EFFICIENT; DOPANT-FREE; ENERGYMultiple languages
Chemistry, Physical; Energy & Fuels; Materials Science, Multidisciplinary; Physics, Applied; Physics, Condensed MatterMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/57936

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