Benzotrithiophene-Based Hole-Transporting Materials for 18.2 % Perovskite Solar Cells.
- Molina-Ontoria A IMDEA-Nanociencia, C/ Faraday 9, Ciudad, Universitaria de Cantoblanco, 28049, Madrid, Spain.
- Zimmermann I Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, EPFL VALAIS, 1951, Sion, Switzerland.
- Garcia-Benito I IMDEA-Nanociencia, C/ Faraday 9, Ciudad, Universitaria de Cantoblanco, 28049, Madrid, Spain.
- Gratia P Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, EPFL VALAIS, 1951, Sion, Switzerland.
- Roldán-Carmona C Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, EPFL VALAIS, 1951, Sion, Switzerland.
- Aghazada S Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, EPFL VALAIS, 1951, Sion, Switzerland.
- Graetzel M Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, EPFL VALAIS, 1015, Lausanne, Switzerland.
- Nazeeruddin MK Group for Molecular Engineering of Functional Materials, Institute of Chemical Sciences and Engineering, EPFL VALAIS, 1951, Sion, Switzerland. mdkhaja.nazeeruddin@epfl.ch.
- Martín N IMDEA-Nanociencia, C/ Faraday 9, Ciudad, Universitaria de Cantoblanco, 28049, Madrid, Spain. nazmar@ucm.es.
- 2016-04-11
Published in:
- Angewandte Chemie (International ed. in English). - 2016
English
New star-shaped benzotrithiophene (BTT)-based hole-transporting materials (HTM) BTT-1, BTT-2 and BTT-3 have been obtained through a facile synthetic route by crosslinking triarylamine-based donor groups with a benzotrithiophene (BTT) core. The BTT HTMs were tested on solution-processed lead trihalide perovskite-based solar cells. Power conversion efficiencies in the range of 16 % to 18.2 % were achieved under AM 1.5 sun with the three derivatives. These values are comparable to those obtained with today's most commonly used HTM spiro-OMeTAD, which point them out as promising candidates to be used as readily available and cost-effective alternatives in perovskite solar cells (PSCs).
- Language
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- English
- Open access status
- green
- Identifiers
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- DOI 10.1002/anie.201511877
- PMID 27061436
- Persistent URL
- https://sonar.ch/global/documents/130092
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