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Evolution of Perovskite Crystallization in Printed Mesoscopic Perovskite Solar Cells

Title data

Filonik, Oliver ; Thordardottir, Margret E. ; Lebert, Jenny ; Pröller, Stephan ; Weiß, Sebastian ; Haur, Lew J. ; Priyadarshi, Anish ; Fontaine, Philippe ; Müller-Buschbaum, Peter ; Mathews, Nripan ; Herzig, Eva M.:
Evolution of Perovskite Crystallization in Printed Mesoscopic Perovskite Solar Cells.
In: Energy Technology. (2019) .
ISSN 2194-4296
DOI: https://doi.org/10.1002/ente.201900343

Abstract in another language

Additives are frequently used to enhance material properties. The addition of the processing additive 5‐aminovaleric acid iodide (5‐AVAI) into printed mesoscopic perovskite solar cells has been shown to have a strong impact on device performance and stability. While it is difficult to understand the impact of 5‐AVAI as a processing additive by examining only the final thin films, we show that the evolution of morphology with and without 5‐AVAI reveals that 5‐AVAI influences the crystallization behaviour of the perovskite. We perform in‐situ grazing incidence wide angle X‐ray scattering (GIWAXS) to follow the perovskite formation within the printable all‐porous TiO2/ZrO2/carbon architecture and investigate the influence of 5‐AVAI on the perovskite crystallization within the scaffold. Using such time‐resolved measurements, we identify the suppression of large crystalline perovskite grains early in the fabrication process when 5‐AVAI is present, resulting in improved material backfilling. Our observations highlight the importance of 5‐AVAI in the precursor solution for reliable fabrication of printed perovskite solar cells relying on infiltration of a scaffold structure.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Juniorprofessur Experimentalphysik VII - Dynamik und Strukturbildung
Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Physics > Juniorprofessur Experimentalphysik VII - Dynamik und Strukturbildung > Juniorprofessur Experimentalphysik VII - Dynamik und Strukturbildung - Juniorprof. Dr. Eva Maria Herzig
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 04 Jul 2019 08:57
Last Modified: 04 Jul 2019 08:57
URI: https://eref.uni-bayreuth.de/id/eprint/49860