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Large nonlinear optical effect in tungsten bronze structures via Li/Na cross-substitutions

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Abstract

By a simple cross-substitution of A-site Li/Na in tetragonal tungsten bronze (TTB) structures, we successfully synthesized a new niobate compound, Pb2.15(Li0.25Na0.75)0.7Nb5O15, with a Image ID:d0cc03479g-t1.gif superstructure. This compound exhibits a strong second harmonic generation (SHG) up to ∼47 × KDP. The large SHG response is related to strengthened local distortion, manifesting cross-substitution as a possibly general route to improve the NLO effect in stiff and low symmetric structures.

Graphical abstract: Large nonlinear optical effect in tungsten bronze structures via Li/Na cross-substitutions

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Supplementary files

Article information


Submitted
15 May 2020
Accepted
12 Jun 2020
First published
13 Jun 2020

Chem. Commun., 2020, Advance Article
Article type
Communication

Large nonlinear optical effect in tungsten bronze structures via Li/Na cross-substitutions

S. Chu, K. Lin, T. Yang, C. Yu, Y. Cao, Y. Zhang, Y. Sun, Z. Li, X. Jiang, Z. Lin, Q. Li, J. Chen, K. Kato, H. Wu, Q. Huang and X. Xing, Chem. Commun., 2020, Advance Article , DOI: 10.1039/D0CC03479G

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