LiZn(OH)CO3 : A Deep-Ultraviolet Nonlinear Optical Hydroxycarbonate Designed from a Diamond-like Structure.
Angew Chem Int Ed Engl
; 60(24): 13574-13578, 2021 Jun 07.
Article
em En
| MEDLINE
| ID: mdl-33822457
ABSTRACT
Deep-ultraviolet (DUV) nonlinear optical (NLO) crystals are vital to the development of science and state-of-the-art technologies, but the exploration of these important optoelectronic materials is hindered by the contradiction between NLO effect and energy band gap as well as the sensitivity of DUV phase-matching to optical birefringence. Here, in order to achieve a well balanced DUV NLO performance, we chose the diamond-like structure as the prototype template for the material design and synthesized the first DUV NLO hydroxycarbonate crystal, LiZn(OH)CO3 . This compound simultaneously has a wide band gap (>6.53â
eV), a strong second harmonic generation response (ca. 3.2×KDP), and a large birefringence (0.147 at 1064â
nm) with the shortest DUV phase-matching capability (λPM <190â
nm) among all reported NLO carbonates. Moreover, the structure-property relationships in LiZn(OH)CO3 are analyzed by first-principles calculations. This work presents an effective design strategy to push the NLO performance of hydroxycarbonates into the DUV region.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Revista:
Angew Chem Int Ed Engl
Ano de publicação:
2021
Tipo de documento:
Article