Issue 10, 2024

Metal co-doped cesium manganese chlorine nanocrystals with high efficiency and tunable red emission

Abstract

Low photoluminescence efficiency and instability of lead-free halide perovskite nanomaterials are the main obstacles preventing their practical applications in the fields of optoelectronic devices and X-ray imaging. In this work, lanthanide-doped cesium manganese halide nanocrystals were synthesized by a simple hot injection method. The chemical composition and structural characteristics of the manganese-based perovskites were investigated in detail to prove that lanthanide ions successfully replaced partial manganese ions. As a result, red photoluminescence with a high photoluminescence quantum yield of 35% and a broad emission was obtained. More importantly, the roles of thulium and lead ions in enhancing the luminescence efficiency and tuning photoluminescence from 662 nm to 628 nm were studied in detail by modulating the molar ratios of thulium/lead. Furthermore, the thulium-doped NCs maintained a stable crystal phase and photoluminescence after two weeks. This work provides new insights into enhancing the photoluminescence and tuning the optical bandgap of a perovskite host with co-doping.

Graphical abstract: Metal co-doped cesium manganese chlorine nanocrystals with high efficiency and tunable red emission

Supplementary files

Article information

Article type
Paper
Submitted
10 Dec. 2023
Accepted
30 Janv. 2024
First published
30 Janv. 2024

J. Mater. Chem. C, 2024,12, 3573-3578

Metal co-doped cesium manganese chlorine nanocrystals with high efficiency and tunable red emission

S. Liu, X. Zhang, Q. Xu, Z. Xu, H. Zeng and D. Yang, J. Mater. Chem. C, 2024, 12, 3573 DOI: 10.1039/D3TC04539K

To request permission to reproduce material from this article, please go to the Copyright Clearance Center request page.

If you are an author contributing to an RSC publication, you do not need to request permission provided correct acknowledgement is given.

If you are the author of this article, you do not need to request permission to reproduce figures and diagrams provided correct acknowledgement is given. If you want to reproduce the whole article in a third-party publication (excluding your thesis/dissertation for which permission is not required) please go to the Copyright Clearance Center request page.

Read more about how to correctly acknowledge RSC content.

Social activity

Spotlight

Advertisements