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Issue 20, 2020
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Sr4Pb1.5Sb5O5Se8: a new mid-infrared nonlinear optical material with a moderate SHG response

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Abstract

A new mid-infrared nonlinear optical oxyselenide compound, Sr4Pb1.5Sb5O5Se8, was successfully synthesized by traditional solid-state reaction. It crystallizes in the noncentrosymmetric space group Cm (No. 8) of the monoclinic system. The crystal structure is composed of edge-sharing quasi-2D 2[Pb1.5Sb3Se8]4− zigzag layers with Sr2+ ions and anionic 1[SbO2.5]2− pseudo-chains separating the adjacent layers. The compound has good thermal stability up to approximately 1000 K which is beneficial for nonlinear optical applications. The sharp down signal of the second harmonic generation (SHG) response measured with a 2.09 μm laser in the reflection mode reveals its nonlinear optical properties. The new compound Sr4Pb1.5Sb5O5Se8 provides some guidance to design new mid-infrared nonlinear optical materials.

Graphical abstract: Sr4Pb1.5Sb5O5Se8: a new mid-infrared nonlinear optical material with a moderate SHG response

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Supplementary files

Article information


Submitted
19 Jan 2020
Accepted
29 Apr 2020
First published
30 Apr 2020

CrystEngComm, 2020,22, 3526-3530
Article type
Paper

Sr4Pb1.5Sb5O5Se8: a new mid-infrared nonlinear optical material with a moderate SHG response

Y. Wang, M. Luo, P. Zhao, X. Che, Y. Cao and F. Huang, CrystEngComm, 2020, 22, 3526
DOI: 10.1039/D0CE00084A

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