Enhanced Photostability of Lead Halide Perovskite Nanocrystals with Mn3+ Incorporation

Hu H, Fehn D, Barr M, Harreiß C, Zhao Y, Meyer K, Brabec CJ, Osvet A, Brabec C (2024)

Publication Type: Journal article

Publication year: 2024

Journal

ACS Applied Materials and Interfaces American Chemical Society

Book Volume: 16

Pages Range: 17946-17953

Journal Issue: 14

DOI: 10.1021/acsami.4c03356

Abstract

Recently, lead halide perovskite nanocrystals (NCs) have shown great potential and have been widely studied in lighting and optoelectronic fields. However, the long-term stability of perovskite NCs under irradiation is an important challenge for their application in practice. Mn2+ dopants are mostly proposed as substitutes for the Pb site in perovskite NCs synthesized through the hot-injection method, with the aim of improving both photo- and thermal stability. In this work, we employed a facile ligand-assisted reprecipitate strategy to introduce Mn ions into perovskite lattice, and the results showed that Mn3+ instead of Mn2+, even with a very low level of incorporation of 0.18 mol % as interstitial dopant, can enhance the photostability of perovskite binder film under the ambient conditions without emission change, and the photoluminescent efficiency can retain 70% and be stable under intensive irradiation for 12 h. Besides, Mn3+ incorporation could prolong the photoluminescent decay time by passivating trap defects and modifying the distortion of the lattice, which underscores the significant potential for application as light emitters.

Authors with CRIS profile

Huiying Hu Institute Materials for Electronics and Energy Technology (i-MEET) Dominik Fehn Lehrstuhl für Anorganische und Allgemeine Chemie Maissa Barr Lehrstuhl für Chemistry of thin film materials Christina Harreiß Lehrstuhl für Werkstoffwissenschaften (Mikro- und Nanostrukturforschung) Karsten Meyer Lehrstuhl für Anorganische und Allgemeine Chemie Andres Osvet Institute Materials for Electronics and Energy Technology (i-MEET) Christoph Brabec Institute Materials for Electronics and Energy Technology (i-MEET)

Additional Organisation(s)

Nanoanalysis and Electron Microscopy (CENEM) Interdisziplinäres Zentrum, Center for Nanoanalysis and Electron Microscopy (CENEM)

Involved external institutions

University of Electronic Science and Technology of China (UESTC) / 电子科技大学 CN China (CN)

How to cite

APA:

Hu, H., Fehn, D., Barr, M., Harreiß, C., Zhao, Y., Meyer, K.,... Brabec, C. (2024). Enhanced Photostability of Lead Halide Perovskite Nanocrystals with Mn3+ Incorporation. ACS Applied Materials and Interfaces, 16(14), 17946-17953. https://doi.org/10.1021/acsami.4c03356

MLA:

Hu, Huiying, et al. "Enhanced Photostability of Lead Halide Perovskite Nanocrystals with Mn3+ Incorporation." ACS Applied Materials and Interfaces 16.14 (2024): 17946-17953.

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