CsLa(SO4)2: A Lanthanum Sulfate Crystal for Nonlinear Optical Applications DOI
Lehui Liu, Feifei Yuan,

Yisheng Huang

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Nonlinear optical materials with ultraviolet transparency are vital for technologies. A sulfate crystal, CsLa(SO4)2, was synthesized via hydrothermal methods, adopting a noncentrosymmetric structure (Pmn21) asymmetric La[SO4]7 coordination. The material exhibits second-harmonic generation efficiency of 0.6 times KH2PO4 (KDP), birefringence 0.026 at 546 nm, and UV cutoff below 200 nm. Its wide bandgap (5.27 eV) aligns requirements UV/deep-UV applications. Theoretical analysis suggests that La-O S-O bonding interactions enhance performance, providing insights optimizing sulfate-based materials.

Language: Английский

From (C6H5N2)2CdCl4 to (C6H5N2)2ZnCl4, Chirality Transformation to Realize a Nonlinear Optical Organic–Inorganic Hybrid Halide with Balanced Comprehensive Performance DOI
Duo Yang,

Yi‐Lei Lv,

Jiandong Guo

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Nonlinear optical (NLO) crystals are critical for modern devices. In this study, two new hybrid metal halides, (C6H5N2)2CdCl4 (1) and (C6H5N2)2ZnCl4 (2), were synthesized by a mild solution method. 1 2 crystallize in different chiral space groups of P43212 P212121, respectively. Their crystal structures composed [MX4]2– (M = Cd, Zn) tetrahedrons (C6H5N2)+ cations with arrangements. They both have wide band gaps (3.98 3.83 eV). Attractively, exhibits SHG (second-harmonic generation) effect 1.2 × KDP, large birefringence (0.22@546 nm), high laser damage threshold (35 AgGaS2), can be grown up to centimeter level. Theoretical calculations show that these properties result from the ordered arrangement organic synergistic [MX4] tetrahedra, providing example develop high-performance NLO materials cation regulation.

Language: Английский

Citations

1
(3‐C6H10N2)ZnX4 (X = Cl and Br): Two Excellent UV Nonlinear Optical Crystals Designed by Combination of π‐conjugated and [ZnX4]2− Tetrahedral Units DOI Open Access
Chuanying Shen, Jie Liu, Defu Sun

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 27, 2025

To design excellent UV nonlinear optical crystals, via a combination of the two genes, planar π-conjugated 3-(aminomethyl)pyridinium ((3-AMP)2+, (C6H10N2)2+) and d10 metallic tetrahedral anion, novel organic-inorganic hybrid (3-C6H10N2)ZnX4 (X = Cl Br) bulk crystals are synthesized using simple solution method. Remarkably, they exhibit performances, including in short absorption edge (229 235 nm), robust second harmonic generation (SHG) intensity (2.05 4.36 × KDP), suitable large birefringence (0.129-0.144@546 nm) phase-matching wavelength (238 262 nm). First-principles calculations elucidate that SHG performances (3-AMP)ZnCl4 (3-AMP)ZnBr4 dominated by synergetic contributions (C6H10N2)2+ distorted [ZnX4]2- groups. This research not only provides NLO-active genes but also paves way for efficient exploration rational new NLO materials with optimal balanced performances.

Language: Английский

Citations

1
Metal Cation Engineered UV Birefringent Crystals in π‐Conjugated Sulfonates with Record‐High Optical Anisotropy DOI

Zichang Wang,

Qing‐Yu Liu, Zhihua Yang

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: April 7, 2025

Abstract Exploring excellent UV birefringent crystals is very urgent for use in advanced optical technologies to manipulate light polarization of great significance. Planar π‐conjugated groups are interest researchers the exploration materials with pronounced birefringence (∆ n ). However, systematic understanding cation and anion groups‐regulated structure–property relationships requires further investigation. Herein, metal engineering applied achieve controlled synthesis novel compounds, enabling precise coordination modulation correlation studies. In this work, eight new 3‐pyridinesulfonate formula A(3‐C 5 H 4 NSO 3 ) x ·yH 2 O ( A = Li, Na, Mg, Ca, Zn, Sr, Ba; 1 2, y 0, 4, 6) Na(3‐C )·2NaBF ·(3‐C H) synthesized characterized. Notably, these exhibit strong anisotropy, values ranging from 0.106 0.345 (measured at 546 nm) short cut‐off edges below 280 nm. Specifically, Li(3‐pySO exhibits an exceptionally large nm), which represents highest value within metal‐containing system surpasses that most commercially available crystals. Moreover, analysis elucidates a comprehensive cation‐structure‐birefringence framework, thereby establishing cation‐driven design principle high‐performance

Language: Английский

Citations

0
Unearthing Hydrogen Bonded Metal‐Free Crystal with Remarkable Optical Anisotropy DOI
Lin Qiu, Liang Ma, Wenlong Liu

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: April 11, 2025

Abstract Birefringent crystals are crucial in modulating the polarization state of light within contemporary technological applications. Organic molecules with π‐conjugated structure known to exhibit significant birefringence effect owing their unique electronic properties. This study demonstrates that 4, 5‐dichocyanimidazole can be used as a new crystal building block for birefringent crystals. Crystals C 5 N 4 H 2 ( DCI ) and ·H O DCI‐w obtained by evaporation at room temperature. It is worth noting birefringence. At 546 nm, experimental 0.417 calculated reaches 0.618. The significantly larger than those all commercial exceeds most metal‐free First‐principles calculations structural analysis show this remarkable mainly due strong anisotropy planar well‐organized arrangement groups. discovery opens up possibilities development high‐performance optical materials.

Language: Английский

Citations

0
(C5N2H7)IO2F2 and (C3N6H8)(IO2F2)2 : Two new organic-inorganic hybrid fluoroiodate birefringent crystals DOI
Si Yuan, Chun‐Li Hu, Jiang‐Gao Mao

et al.

Dalton Transactions, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

Two organic–inorganic hybrid fluorooxoiodates, namely, (C 5 N 2 H 7 )IO F and 3 6 8 )(IO ) , were obtained. The parallel arrangements of the organic π conjugate cations produce a large birefringence in UV wave band.

Language: Английский

Citations

0
Recent progress in structural design strategies of high-birefringence optical crystals DOI
Alan Xu,

Mao‐Yin Ran,

Xintao Wu

et al.

Coordination Chemistry Reviews, Journal Year: 2025, Volume and Issue: 540, P. 216775 - 216775

Published: May 8, 2025

Language: Английский

Citations

0
CsLa(SO4)2: A Lanthanum Sulfate Crystal for Nonlinear Optical Applications DOI
Lehui Liu, Feifei Yuan,

Yisheng Huang

et al.

Inorganic Chemistry, Journal Year: 2025, Volume and Issue: unknown

Published: May 23, 2025

Nonlinear optical materials with ultraviolet transparency are vital for technologies. A sulfate crystal, CsLa(SO4)2, was synthesized via hydrothermal methods, adopting a noncentrosymmetric structure (Pmn21) asymmetric La[SO4]7 coordination. The material exhibits second-harmonic generation efficiency of 0.6 times KH2PO4 (KDP), birefringence 0.026 at 546 nm, and UV cutoff below 200 nm. Its wide bandgap (5.27 eV) aligns requirements UV/deep-UV applications. Theoretical analysis suggests that La-O S-O bonding interactions enhance performance, providing insights optimizing sulfate-based materials.

Language: Английский

Citations

0