Influence of Thiazole-modified Carbon Nitride Nanosheets with Feasible Electronic Properties on Inverted Perovskite Solar Cells.

Author(s) Cruz, D.; Cerrillo, J.Garcia; Kumru, B.; Li, N.; Perea, J.Dario; Schmidt, B.V.K.J.; Lauermann, I.; Brabec, C.J.; Antonietti, M.
Journal J Am Chem Soc
Date Published 2019 Jul 16

Effective, solution processable designs of interfacial electron transporting layers (ETLs) or hole-blocking layers are promising tools in modern electronic devices, e.g. to improve performance, cost and stability of perovskite-based solar cells. Herein, we introduce a facile synthetic route of thiazole-modified carbon nitride with 1.5 nm thick nanosheets which can be processed to a homogeneous, metal-free ETL for inverted perovskite solar cells. We show that thiazole-modified carbon nitride enables electronic interface enhancement via suppression of charge recombination, achieving 1.09 V in Voc and a rise to 20.17 mA/cm2 in Jsc. Hence, this report presents the successful implementation of a carbon nitride-based structure to boost charge extraction from the perovskite absorber towards the electron transport layer in p-i-n devices.

DOI 10.1021/jacs.9b03639
ISSN 1520-5126
Citation J Am Chem Soc. 2019.

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