Benzotrithiophene-Based Hole-Transporting Materials for 18.2% Perovskite Solar Cells



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Molina Ontoria, Agustín and Zimmermann, Iwan and García Benito, Inés and Gratia, Paul and Roldán Carmona, Cristina and Aghazada, Sadig and Graetzel, Michael and Khaja Nazeeruddin, Mohammad and Martín León, Nazario (2016) Benzotrithiophene-Based Hole-Transporting Materials for 18.2% Perovskite Solar Cells. Angewandte Chemie, 55 (21). pp. 6270-6274. ISSN 1521-3773

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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 todays 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).

Item Type:Article
Uncontrolled Keywords:benzotrithiophenes; perovskites; power conversion efficiency; solar cells; triarylamines
Subjects:Sciences > Chemistry > Chemistry, Organic
ID Code:41607
Deposited On:07 Mar 2017 09:22
Last Modified:01 Jun 2017 23:01

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