Issue 45, 2021

Thickness dependent properties of ultrathin perovskite nanosheets with Ruddlesden–Popper-like atomic stackings

Abstract

Ruddlesden–Popper perovskites possess a rich variety of multiple phases due to their mixed organic cations and variable layer numbers. However, the direct observation of these phases and their optical performance in ultrathin nanosheets, have rarely been reported. Here we demonstrate, through a one-pot CVD synthesis method to incorporate MA+ and NMA+ cations into PbI2 simultaneously, that the stackings of Ruddlesden–Popper phases with a distribution of a number of layers 〈n〉 can be produced within a single perovskite nanosheet. As featured by the micro-, time-resolved and temperature-dependent photoluminescence measurements, the optical properties are highly dependent on the nanosheet thickness.

Graphical abstract: Thickness dependent properties of ultrathin perovskite nanosheets with Ruddlesden–Popper-like atomic stackings

Article information

Article type
Communication
Submitted
08 May 2021
Accepted
04 Oct 2021
First published
21 Oct 2021

Nanoscale, 2021,13, 18961-18966

Thickness dependent properties of ultrathin perovskite nanosheets with Ruddlesden–Popper-like atomic stackings

J. Zhong, Y. Sun, B. Liu, C. Zhu, Y. Cao, E. Sun, K. He, W. Zhang, K. Liao, X. Wang, Z. Liu and L. Wang, Nanoscale, 2021, 13, 18961 DOI: 10.1039/D1NR02939H

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