A promising optical limiting material: Tunable third-order nonlinear optical properties of robust CsPbX3 (X=Cl/Br, Br) nanocrystals glasses

As laser technology advances, the importance of laser protection puts an urgent demand for robust and high-efficient optical limiting materials. In this work, CsPbX3 (X = Cl/Br, Br) NCs were synthesized by precisely controlling the ratio of Cl− to Br− and the heat treatment temperature, and the thir...

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Bibliographic Details
Published in:Journal of the European Ceramic Society 2020-09, Vol.40 (12), p.4140-4147
Main Authors: Jin, Mengfeifei, Liang, Xiaojuan, Zhang, Huiling, Liu, Jianming, Shao, Guangzhan, Xiang, Weidong, Song, Yinglin
Format: Article
Language:English
Subjects:
Nanocrystals glass
NIT-PO
Nonlinear optical
Optical limiting
Perovskite
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Summary:As laser technology advances, the importance of laser protection puts an urgent demand for robust and high-efficient optical limiting materials. In this work, CsPbX3 (X = Cl/Br, Br) NCs were synthesized by precisely controlling the ratio of Cl− to Br− and the heat treatment temperature, and the third-order nonlinear (TONL) optical properties of them were investigated systematically and deeply based on a nonlinear optical imaging technique with the phase-object (NIT-PO) at 532 nm for the first time. All of them demonstrate strong reverse saturation absorption (∼10-12–10-11 m/W), and the sign of TONL refraction index (γ) relates to the component (CsPb(Cl/Br)3 NCs glasses: ∼10-20 m2/W, CsPbBr3 NCs glasses: ∼−10-20 to 10-19 m2/W). In addition, they have excellent characteristics of thermal stability and water stability, as well as photostability under 455 nm laser irradiation, indicating that it is a promising optical limiting material.
ISSN:0955-2219
1873-619X
DOI:10.1016/j.jeurceramsoc.2020.04.035