Maximizing and stabilizing luminescence from halide perovskites with potassium passivation

Mojtaba Abdi-Jalebi, Zahra Andaji-Garmaroudi, Stefania Cacovich, Camille Stavrakas, Bertrand Philippe, Johannes M. Richter, Mejd Alsari, Edward P. Booker, Eline M. Hutter, Andrew J. Pearson, Samuele Lilliu, Tom J. Savenije, Håkan Rensmo, Giorgio Divitini, Caterina Ducati, Richard H. Friend and Samuel D. Stranks ()
Additional contact information
Mojtaba Abdi-Jalebi: Cavendish Laboratory, University of Cambridge
Zahra Andaji-Garmaroudi: Cavendish Laboratory, University of Cambridge
Stefania Cacovich: University of Cambridge
Camille Stavrakas: Cavendish Laboratory, University of Cambridge
Bertrand Philippe: Uppsala University
Johannes M. Richter: Cavendish Laboratory, University of Cambridge
Mejd Alsari: Cavendish Laboratory, University of Cambridge
Edward P. Booker: Cavendish Laboratory, University of Cambridge
Eline M. Hutter: Delft University of Technology
Andrew J. Pearson: Cavendish Laboratory, University of Cambridge
Samuele Lilliu: University of Sheffield
Tom J. Savenije: Delft University of Technology
Håkan Rensmo: Uppsala University
Giorgio Divitini: University of Cambridge
Caterina Ducati: University of Cambridge
Richard H. Friend: Cavendish Laboratory, University of Cambridge
Samuel D. Stranks: Cavendish Laboratory, University of Cambridge

Nature, 2018, vol. 555, issue 7697, 497-501

Abstract: Modifying the surfaces and grain boundaries of perovskites with passivating potassium halide layers can mitigate non-radiative losses and photoinduced ion migration, increasing luminescence yields and improving charge transport and interfaces with device electrodes.

Date: 2018
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DOI: 10.1038/nature25989

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