A UV non-hydrogen pure selenite nonlinear optical material for achieving balanced properties through framework-optimized structural transformation

Li, Peng-Fei; Hu, Chun-Li; Mao, Jiang-Gao; Kong, Fang

doi:10.1039/d3mh01790g

Cited by 12 publications

(6 citation statements)

References 61 publications

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“…These compounds can be synthesized easily due to the absence of competition from other anionic groups. Among them, NaLu(SeO 3 ) 2 , Sc(HSeO 3 ) 3 , and Ga 2 (SeO 3 ) 3 (H 2 O) 3 have potential applications in the ultraviolet (UV) region. The mixed-anion selenite system refers to compounds that contain two or more different anionic groups. , These compounds can combine the advantages of various anionic groups to obtain materials with an excellent overall performance.…”

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confidence: 99%

Hg₃Se(SeO₃)(SO₄): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Li,

Hu,

et al. 2024

Inorg. Chem.

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Exploring new material systems is a highly significant task in the field of inorganic chemistry. A new mixed-valent selenium compound, Hg 3 Se(SeO 3 )(SO 4 ), was successfully synthesized through in situ reactions. This compound exhibits a novel three-dimensional structure composed of Hg 3 Se(SO 4 ) layers bridged by SeO 3 trigonal pyramids. It is the first structure containing (SeO 3 ) 2− , (SO 4 ) 2− , and Se 2− simultaneously. In addition, Hg 3 Se(SeO 3 )(SO 4 ) possesses a wide bandgap (3.5 eV), moderate birefringence (Cal:0.064@546 nm, Exp:0.069@546 nm), a high laser-induced damage threshold (23.35 MW cm −2 ), and a wide transmittance window (0.28−6.6 μm). Our work demonstrates that mixed-valent (+4, −2) selenite selenide can be potential optical materials for the mid-infrared region.

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Hg₃Se(SeO₃)(SO₄): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Li,

Hu,

et al. 2024

Inorg. Chem.

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“…The birefringence of Hg 2 (TeO 3 )(SO 4 ) and Hg 4 (Te 2 O 5 )(SO 4 ) was measured by the polarizing microscope method. , The crystal thicknesses of Hg 2 (TeO 3 )(SO 4 ) and Hg 4 (Te 2 O 5 )(SO 4 ) are 6.6 and 2.0 μm, respectively. The optical path differences at 546 nm are 1.052 and 1.040 μm.…”

Section: Resultsmentioning

confidence: 99%

Hg₄(Te₂O₅)(SO₄): A Giant Birefringent Sulfate Crystal Triggered by a Highly Selective Cation

Li,

Hu,

et al. 2024

J. Am. Chem. Soc.

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Sulfate crystals are often criticized for their low birefringence. The small anisotropic SO 4 group is becoming the biggest bottleneck hindering the application of sulfates in optical functional materials. In this study, we report a new method to significantly enhance the birefringence of sulfates. The title compound increases the birefringence recording of sulfates to 0.542@546 nm, which is significantly larger than that of the commercial birefringent crystal of TiO 2 (0.306@546.1 nm). At the infrared wavelength, the birefringence of Hg 4 (Te 2 O 5 )(SO 4 ) can be up to 0.400@1064 nm, which is also much larger than the infrared birefringent crystal of YVO 4 (0.209@1064 nm). In addition, it also has a wide transparency range, high thermal stability, and excellent environmental stability, making it a potential birefringent material. Hg 4 (Te 2 O 5 )(SO 4 ) features a novel two-dimensional layered structure composed of [Hg 4 (Te 2 O 5 )] 2+ layers separated by isolated (SO 4 ) 2− tetrahedra. This compound was designed by introducing a highly selective cation in a tellurite sulfate system. The low valence low coordination cations connect with tellurite groups only, making the sulfate isolated in the structure. The steric repulsive action of the isolated SO 4 tetrahedra may regulate the linear and lone pair groups arranged in a way that favors large birefringence. This method can be proven by theoretical calculations. PAWED studies showed that the large birefringence originated from the synergistic effect of (Hg 2 O 2 ) 2− , (Te 2 O 5 ) 2− , and (SO 4 ) 2− units, with a contribution ratio of 42.17, 37.92, and 19.88%, respectively. Our work breaks the limitation of low birefringence in sulfates and opens up new possibilities for their application as birefringent crystals.

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“…The powder LIDT of (3AP) 2 (Sb 4 F 13 ) is comparable with that of NaLu(SeO 3 ) 2 , despite the substantial difference in their band gaps (3.05 vs. 5.30 eV). 55 …”

Section: Resultsmentioning

confidence: 99%

[(C₅H₆N₂)₂H](Sb₄F₁₃): a polyfluoroantimonite with a strong second harmonic generation effect

Wu,

Hu,

et al. 2024

Chem. Sci.

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A UV non-hydrogen pure selenite nonlinear optical material for achieving balanced properties through framework-optimized structural transformation

Abstract: For non-centrosymmetric (NCS) oxides intended for ultraviolet (UV) nonlinear optical (NLO) applications, achieving a wide bandgap, large second harmonic generation (SHG) intensity, and sufficient birefringence to satisfy phase matching is...

Cited by 12 publications

References 61 publications

Hg₃Se(SeO₃)(SO₄): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Hg₃Se(SeO₃)(SO₄): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Hg₄(Te₂O₅)(SO₄): A Giant Birefringent Sulfate Crystal Triggered by a Highly Selective Cation

[(C₅H₆N₂)₂H](Sb₄F₁₃): a polyfluoroantimonite with a strong second harmonic generation effect

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A UV non-hydrogen pure selenite nonlinear optical material for achieving balanced properties through framework-optimized structural transformation

Abstract: For non-centrosymmetric (NCS) oxides intended for ultraviolet (UV) nonlinear optical (NLO) applications, achieving a wide bandgap, large second harmonic generation (SHG) intensity, and sufficient birefringence to satisfy phase matching is...

Cited by 12 publications

References 61 publications

Hg3Se(SeO3)(SO4): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Hg3Se(SeO3)(SO4): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Hg4(Te2O5)(SO4): A Giant Birefringent Sulfate Crystal Triggered by a Highly Selective Cation

[(C5H6N2)2H](Sb4F13): a polyfluoroantimonite with a strong second harmonic generation effect

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Hg₃Se(SeO₃)(SO₄): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Hg₃Se(SeO₃)(SO₄): A Mixed-Valent Selenium Compound with Mid-Infrared Transmittance Obtained by In Situ Reaction

Hg₄(Te₂O₅)(SO₄): A Giant Birefringent Sulfate Crystal Triggered by a Highly Selective Cation

[(C₅H₆N₂)₂H](Sb₄F₁₃): a polyfluoroantimonite with a strong second harmonic generation effect