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DALTON TRANSACTIONS · 2023 ·Vol. 52 ·期 29 ·10109-10114 · IF 4

Synthesis and characterization of a new rare earth borate nonlinear optical crystal K7PbLu2B15O30

Juhe Liu,Yuwei Chen,Mengran Sun,Wenhao Liu,Xianghe Meng,Jiyong Yao

A new complex rare earth borate K7PbLu2B15O30 was prepared by the spontaneous crystallization method. K7PbLu2B15O30 is crystallized in the chiral trigonal space group R32 with cell parameters a = b = 13.0893(3) Å, c = 15.2379(6) Å, α = β = 90°, γ = 120°, and Z = 3. The basic structure of the crystal can be seen as composed of B5O10 groups and LuO6 polyhedra sharing oxygen atoms, while K+ and Pb2+ fill the space to balance the charge. The UV transmission cut-off edge of K7PbLu2B15O30 was less than 300 nm, and the powder SHG response was roughly 1.1 times that of KDP. Furthermore, a first-principles analysis was performed to see more about the relationship between the crystal structure and optical characteristics.

研究领域: 无机化学 · 材料科学 · 晶体工程 · 光学材料 · 固体化学

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CHINESE CHEMICAL LETTERS · 2024 ·Vol. 36 ·期 4 ·109730 · IF 9.4

Trithionic guanidine: A novel semi-organic short-wave ultraviolet nonlinear optical sulfate with dimeric heteroleptic tetrahedra

Hongyuan Sha,Dongling Yang,Yanran Shang,Zujian Wang,Rongbing Su,Chao He,Xiaoming Yang,Xifa Long

Sulfates are always promising short-wave ultraviolet (UV) nonlinear optical (NLO) candidates, if their birefringence could be greatly improved. Here, in terms of the insufficient birefringence , the unity of heteroleptic tetrahedral groups and triangular ones was proposed and implemented. Thus, a new semi-organic crystal, [C(NH 2 ) 3 ]S 3 O 6 (G 2 S 3 O 6 ), was obtained, which is composed of [S 3 O 6 ] 2− and [C(NH 2 ) 3 ] + groups. It exhibits excellent optical properties with a short absorption cutoff edge of 218 nm, a strong NLO response of 1.4 × KH 2 PO 4 , and more especially, a large birefringence of 0.097@546 nm. This birefringence leap makes the G 2 S 3 O 6 crystal achieve a phase-matching behavior under a 532 nm laser. Thus, the synergy of [S 3 O 6 ] 2− and [C(NH 2 ) 3 ] + groups results in excellent optical performances. This finding opens a new horizon for exploring novel UV NLO crystals.

研究领域: 材料科学 · 光学工程 · 无机化学 · 晶体化学 · 非线性光学

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Advanced Optical Materials · 2022 ·Vol. 11 ·期 3 ·2202195 · IF 10.05

LiNaB6O9F2: A Promising UV NLO Crystal Having Fluorine-Directed Optimal Performances and Double Interpenetrating 3[B6O9F2]∞ Networks

Xiaojing Li,Zilong Chen,Fuming Li,Fangfang Zhang,Zhihua Yang,Shilie Pan

A long-lasting challenge in ultraviolet (UV) nonlinear optical (NLO) materials design is to combine conflicting and harsh properties into one structure, including wide UV transparency, strong NLO efficiency, and moderate birefringence to realize phase-matching at short wavelength. A fluorine-directed material design strategy is adopted to accelerate the process of finding NLO materials with optimal performances. In this work, taking LiB 3 O 5 (LBO) as a maternal structure, one O atom with two F atoms is substituted and LiNaB 6 O 9 F 2 which possesses novel double interpenetrating 3 [B 6 O 9 F 2 ] ∞ networks and fluorine-directed optimal performances including enhanced birefringence and phase-matching capacity is successfully obtained. The perfect balance among deep-UV cutoff edge, large second-harmonic generation (SHG) response (1.1 × KDP), and moderate birefringence (0.067 at 1064 nm) of LiNaB 6 O 9 F 2 makes it a promising UV NLO crystal.

研究领域: 材料科学 · 晶体化学 · 非线性光学 · 功能材料 · 固体化学

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JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS · 2018 ·Vol. 30 ·期 2 ·1699-1705 · IF 2.324

Electrical and optical responses of composite films based on N,N-dimethylamino-4′-N′-methylstilbazolium 2,4,6-trimethylbenzenesulfonate (DSTMS)-graphene

Teng Fei,Chen Dong,Ma Yuzhe,Ji Shaohua,Liu Jiaojiao,Wang Tianhua,Tang Jie,Cao Lifeng,Teng Bing

N,N -dimethylamino-4′-N′-methylstilbazolium 2,4,6-trimethylbenzenesulfonate (DSTMS)-graphene ex-situ and in-situ composite films with 2% concentration of graphene were first prepared and systematically investigated. The crystallinity of DSTMS-based composite films were confirmed by XRD analysis, and the functional groups of composite films can be obtained by FT-IR. Optical absorptions were recorded using UV–Vis-NIR spectral analysis, and the band gap and extinction coefficient of the films were calculated. The thermal stability of the composite films were analyzed by TG/DSC. The pressure sensitive resistance test showed that the pressure sensitive signal of the composite films were significantly increased after graphene added, while the signal of DSTMS film eventually disappears. This work expands the application of organic nonlinear crystal DSTMS in optics and electricity by doping graphene.

研究领域: 材料科学 · 凝聚态物理 · 功能材料 · 非线性光学 · 纳米复合材料 · 电学性能 · 光学性能 · 热分析

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Synthesis and characterization of a new rare earth borate nonlinear optical crystal K7PbLu2B15O30

Trithionic guanidine: A novel semi-organic short-wave ultraviolet nonlinear optical sulfate with dimeric heteroleptic tetrahedra

LiNaB6O9F2: A Promising UV NLO Crystal Having Fluorine-Directed Optimal Performances and Double Interpenetrating 3[B6O9F2]∞ Networks

Electrical and optical responses of composite films based on N,N-dimethylamino-4′-N′-methylstilbazolium 2,4,6-trimethylbenzenesulfonate (DSTMS)-graphene