Issue 44, 2022

Impact of crystal growth diversity on magneto-photoluminescence and circular dichroism in chiral lead halide perovskites

Abstract

Chiral-induced magneto-photoluminescence (magneto-PL) is a newly raised magneto-optical phenomenon, where photoluminescence intensity can be effectively manipulated by magnetic fields and material helicity. By far, little is known regarding the impact of crystallographic orientations on chiral-induced magneto-PL and circular dichroism (CD) for solution-made polycrystalline chiral lead halide perovskites (LHPs). By tuning weight percentages (wt%) rationally for precursor solutions in the work, we found that large magneto-PL (−13.2%) with strong tunability via polarized photoexcitation is highly decided by the crystallographic orientations for the chiral LHPs. The large effect stems from the effectiveness of magnetic field modulation to excitonic fine structures. We also found that diploe-allowed excitonic transitions and the CD characters could be dramatically influenced by crystallinities. Thus, a full understanding of its growth mode and optical properties is of paramount importance for achieving large magneto-PL with strong tunability. The work opens a new avenue for chiroptical applications.

Graphical abstract: Impact of crystal growth diversity on magneto-photoluminescence and circular dichroism in chiral lead halide perovskites

Supplementary files

Article information

Article type
Paper
Submitted
09 Sept. 2022
Accepted
20 Okt. 2022
First published
20 Okt. 2022

J. Mater. Chem. C, 2022,10, 16706-16713

Impact of crystal growth diversity on magneto-photoluminescence and circular dichroism in chiral lead halide perovskites

R. Pan, J. Hu, S. Tao, L. Kan, H. Yu and K. Wang, J. Mater. Chem. C, 2022, 10, 16706 DOI: 10.1039/D2TC03810B

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