Issue 33, 2023

All-inorganic Mn2+-doped metal halide perovskite crystals for the late-time detection of X-ray afterglow imaging

Abstract

All-inorganic metal halide perovskite (MHP) materials have been widely studied because of their unique optoelectronic properties, whereas there has been little research reported on their X-ray afterglow imaging properties. Herein, we report the design and synthesis of Mn2+-doped hexagonal CsCdCl3 MHP crystals with excellent X-ray scintillation and X-ray induced afterglow. The orange emission from Mn2+ shows a red shift due to the strong interaction of the Mn2+–Mn2+ dimers formed at higher doping concentrations. The high-energy X-rays with higher electron filling capacity to feed the shallow (0.71 eV) and deep (0.90–1.08 eV) traps enable a long orange afterglow for more than 300 min. The afterglow emission can be rejuvenated effectively by 870 nm stimulus or heating even after 72 h of decay. Finally, we demonstrate the proof-of-concept applications of the fabricated flexible scintillator films for real-time online X-ray imaging with a spatial resolution of 12.2 lp mm−1, as well as time-lapse X-ray imaging recorded by a cell phone, which shows promise for being able to do offline late-time detection of X-ray afterglow imaging in the future.

Graphical abstract: All-inorganic Mn2+-doped metal halide perovskite crystals for the late-time detection of X-ray afterglow imaging

Supplementary files

Article information

Article type
Paper
Submitted
12 Maijs 2023
Accepted
20 Jūl. 2023
First published
21 Jūl. 2023

Nanoscale, 2023,15, 13628-13634

All-inorganic Mn2+-doped metal halide perovskite crystals for the late-time detection of X-ray afterglow imaging

S. Wu, L. Yuan, G. Chen, C. Peng and Y. Jin, Nanoscale, 2023, 15, 13628 DOI: 10.1039/D3NR02208K

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