In:
Angewandte Chemie, Wiley, Vol. 134, No. 32 ( 2022-08-08)
Abstract:
Metal chalcogenophosphates are receiving increasing interest, specifically as promising infrared nonlinear optical (NLO) candidates. Here, a rare‐earth chalcogenophosphate Eu 2 P 2 S 6 crystallizing in the monoclinic noncentrosymmetric space group Pn was synthesized using a high‐temperature solid‐state method. Its structure features isolated [P 2 S 6 ] 4− dimer, and two types of EuS 8 bicapped triangular prisms. Eu 2 P 2 S 6 exhibits a phase‐matchable second‐harmonic generation (SHG) response ≈0.9×AgGaS 2 @2.1 μ m, and high laser‐induced damage threshold of 3.4×AgGaS 2 , representing the first rare‐earth NLO chalcogenophosphate. The theoretical calculation result suggests that the SHG response is ascribed to the synergetic contribution of [P 2 S 6 ] 4− dimers and EuS 8 bicapped triangular prisms. This work provides not only a promising high‐performance infrared NLO material, but also opens the avenue for exploring rare‐earth chalcogenophosphates as potential IR NLO materials.
Type of Medium:
Online Resource
ISSN:
0044-8249
,
1521-3757
DOI:
10.1002/ange.v134.32
DOI:
10.1002/ange.202206791
Language:
English
Publisher:
Wiley
Publication Date:
2022
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