Issue 18, 2022

Methylpiperazine based 0D chiral hybrid lead halides for second harmonic generation

Abstract

Hybrid organic–inorganic metal halides (HOMHs) have recently attracted broad research interest for their structural tunability and remarkable optoelectronic properties. Among them, chiral HOMHs have demonstrated promising applications in second-order nonlinear optics (NLO) on account of their inherent noncentrosymmetric structures. Herein, we synthesized two new chiral HOMHs, (S-/R-2-C5H14N2)2PbI6, based on S-/R-2-methylpiperazine chiral amines. They feature a band gap close to 2.9 eV with high phase purity as well as environmental and thermal stability. The induction of the chiral optical properties of (S-/R-2-C5H14N2)2PbI6 by chiral organic cations was verified by circular dichroism (CD) spectroscopy. Moreover, the resulted HOMHs materials demonstrate a strong second harmonic generation response with a large laser damage threshold (∼2.97 mJ cm−2), showing promising applications in NLO photonic devices.

Graphical abstract: Methylpiperazine based 0D chiral hybrid lead halides for second harmonic generation

Supplementary files

Article information

Article type
Paper
Submitted
21 Feb 2022
Accepted
11 Apr 2022
First published
11 Apr 2022

Dalton Trans., 2022,51, 7248-7254

Methylpiperazine based 0D chiral hybrid lead halides for second harmonic generation

X. Jia, Y. Zheng, P. Cheng, X. Han, L. Xu and J. Xu, Dalton Trans., 2022, 51, 7248 DOI: 10.1039/D2DT00557C

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