Hot electron injection into semiconducting polymers in polymer based-perovskite solar cells and their fate
Jiménez-López J, Puscher B, Cambarau W, Fink R, Palomares E, Guldi DM (2019)
Publication Type: Journal article
Publication year: 2019
Journal
Book Volume: 11
Pages Range: 23357-23365
Journal Issue: 48
DOI: 10.1039/c9nr06297a
Abstract
Metal halide perovskites are known to possess upon photoexcitation long-lived hot carriers. By using femtosecond laser transient absorption spectroscopy, we probed in the current work interfacial charge transfer, that is, hot electrons and holes in methylammonium lead iodide perovskite. The focus was, on the one hand, on titanium dioxide as an electron transporting material and, on the other hand, on several organic semiconducting materials as hole transporting materials in perovskite solar cells. An unexpected carrier loss pathway for hot electrons was found in the form of injection into the low lying LUMOs of several organic semiconducting materials. Of great importance is the fact that the final photocurrents of perovskite solar cells scale with the suppression of this newly discovered loss pathway.
Authors with CRIS profile
Bianka Puscher
Lehrstuhl für Physikalische Chemie I
Rainer Fink
Professur für Physikalische Chemie
Dirk Michael Guldi
Lehrstuhl für Physikalische Chemie I
Involved external institutions
Spain (ES)How to cite
APA:
Jiménez-López, J., Puscher, B., Cambarau, W., Fink, R., Palomares, E., & Guldi, D.M. (2019). Hot electron injection into semiconducting polymers in polymer based-perovskite solar cells and their fate. Nanoscale, 11(48), 23357-23365. https://doi.org/10.1039/c9nr06297a
MLA:
Jiménez-López, Jesús, et al. "Hot electron injection into semiconducting polymers in polymer based-perovskite solar cells and their fate." Nanoscale 11.48 (2019): 23357-23365.
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