Iwan Zimmermann

Cette personne n’est plus à l’EPFL

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Publications associées (43)

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

Michael Graetzel, Mohammad Khaja Nazeeruddin, Paul Gratia, Sadig Aghazada, Cristina Roldán Carmona, Iwan Zimmermann, Inés Garcia Benito

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 wer ...

Wiley-VCH Verlag GmbH2016

Enhanced TiO2/MAPbI(3) Electronic Coupling by Interface Modification with PbI2

Mohammad Khaja Nazeeruddin, Paul Gratia, Cristina Roldán Carmona, Iwan Zimmermann, Giulia Grancini, Filippo de Angelis

Amer Chemical Soc2016

High efficiency methylammonium lead triiodide perovskite solar cells: the relevance of non-stoichiometric precursors

Michael Graetzel, Mohammad Khaja Nazeeruddin, Paul Gratia, Peng Gao, Cristina Roldán Carmona, Iwan Zimmermann, Giulia Grancini

Methylammonium lead iodide perovskite solar cells with improved performance and stability have been successfully prepared by using a non-stoichiometric PbI2 : CH3NH3I ratio in the precursor solution, and yield a power conversion efficiency (PCE) of above 1 ...

Royal Soc Chemistry2015

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