Jingfang Zhou

Tangshan Normal University

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Mingjun Xia

Technical Institute of Physics and Chemistry

Rukang Li

Technical Institute of Physics and Chemistry

Qian Wu

Nankai University

Pifu Gong

Technical Institute of Physics and Chemistry

Qiaoxin Zhang

Wuhan University of Technology

Aimin Ji

Tangshan Normal University

Qian Wu

Zhejiang University

Huiqiang Wu

Inje University

Zheshuai Lin

Technical Institute of Physics and Chemistry

Xingxing Jiang

Technical Institute of Physics and Chemistry

Cooperative Institutions

Chinese Academy of Sciences

Technical Institute of Physics and Chemistry

University of Chinese Academy of Sciences

Shandong University

Tangshan Normal University

Shenzhen University

China University of Mining and Technology

China Three Gorges University

Beijing Institute of Technology

Zhejiang A & F University

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A non–centrosymmetric compound K7Li2Y2B15O30 by introducing more alkali metals into A7MRe2B15O30 family

Journal of Solid State Chemistry (2021)

Jingfang Zhou Rukang Li

Divalent

Thermogravimetric analysis

Alkaline earth metal

10.1016/j.jssc.2021.122630

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Citations (6)

Ca₃(TeO₃)₂(MO₄) (M = Mo, W): Mid-Infrared Nonlinear Optical Tellurates with Ultrawide Transparency Ranges and Superhigh Laser-Induced Damage Thresholds

Inorganic Chemistry (2021)

Qian Wu Jingfang Zhou Xiaomeng Liu Xingxing Jiang Qiaoxin Zhang

Intense interests in mid-infrared (MIR) nonlinear optical (NLO) crystals have erupted in recent years due to the development of optoelectronic applications ranging from remote monitoring to molecular spectroscopy. Here, two polar crystals Ca3(TeO3)2(MO4) (M = Mo, W) were grown from TeO2-MO3 flux by high-temperature solution methods. Ca3(TeO3)2(MoO4) and Ca3(TeO3)2(WO4) are isostructural, which feature novel structures consisting of asymmetric MO4 tetrahedra and TeO3 trigonal pyramids. Optical characterizations show that both crystals display ultrawide transparency ranges (279 nm to 5.78 μm and 290 nm to 5.62 μm), especially high optical transmittance over 80% in the important atmospheric transparent window of 3-5 μm, and superhigh laser damage thresholds (1.63 GW/cm2 and 1.50 GW/cm2), 54.3 and 50 times larger than that of state-of-the-art MIR NLO AgGaS2, respectively. Notably, they exhibit the widest band gaps and the loftiest laser-induced threshold damages among the reported tellurates so far. Moreover, Ca3(TeO3)2(MO4) exhibit type I phase matching at two working wavelengths owing to their large birefringence and strong second-harmonic generation responses from the distorted anions, as further elucidated by the first-principles calculations. The above characteristics indicate that Ca3(TeO3)2(MO4) crystals are high-performance MIR NLO materials, especially applying in high-power MIR laser operations.

Isostructural

Ultraviolet

10.1021/acs.inorgchem.1c03069

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Citations (27)

Co-substitution design: a new glaserite-type rare-earth phosphate K₂RbSc(PO₄)₂ with high structural tolerance

Dalton Transactions (2023)

Jingfang Zhou Pifu Gong Mingjun Xia Qian Wu

An alkali rare-earth phosphate K2RbSc(PO4)2 was successfully obtained as a derivative of glaserite-type K3Na(SO4)2 by co-substitution of K(1)O12 → RbO12, K(2)O10 → KO7, NaO6 → ScO6 and SO4 → PO4, while maintaining the original anionic framework. K2RbSc(PO4)2 exhibits a layered [Sc(PO4)2]∞ framework built from ScO6 octahedra and PO4 tetrahedra, with K and Rb residing in the interlayers. Its isostructural lanthanide analogues K2RbEr(PO4)2 and K2RbLu(PO4)2, inspired by an elemental substitution strategy, were also prepared by a high-temperature solid state reaction. The successful substitution indicates that the skeleton of K2RbSc(PO4)2 is stable with high structural tolerance, which can provide a possibility for substitution of resident ions to obtain diverse structural types and applications.

Isostructural

Substitution (logic)

Tetrahedron

Alkaline earth metal

10.1039/d3dt02494f

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Citations (3)

Growth and Characterization of a Nonlinear Optical Crystal Cd₃Te₂WO₁₀ Decorated by WO₄ Tetrahedra Showing a Large Band Gap

Crystal Growth & Design (2022)

Qiaoxin Zhang Qian Wu Jingfang Zhou Chuan Tang Mingjun Xia

A noncentrosymmetric nonlinear optical (NLO) crystal Cd3Te2WO10 with a large band gap has been synthesized and grown using the high-temperature solution method with TeO2 as a flux. Cd3Te2WO10, crystallized in P21, contains two classes of d0 W6+ and lone-pair Te4+ cations holding asymmetric coordination environments which are associated with the second-order Jahn–Teller effect. Importantly, it has a large band gap of 4.28 eV, which is profitable for high-power application, and wide transparency region of 0.29–5.63 μm, especially in 1–5 μm possessing tremendous transmittance that exceeded 80% and fully covering the 3–5 μm range, which is one of the vital atmospheric windows, and a good Raman performance that arises from the WO4 polyhedra. In addition, Cd3Te2WO10 features phase-matching behavior owing to large birefringence and considerable second-harmonic generation response equivalent to 1.1 times that of KH2PO4, which is further elucidated by the theoretical calculation. Therefore, our experimental results demonstrate that Cd3Te2WO10 could be used as a promising functional NLO crystal.

Crystal (programming language)

Tetrahedron

Flux method

10.1021/acs.cgd.2c00877

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Citations (2)

CSD 2238779: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Jingfang Zhou Pifu Gong Mingjun Xia Aimin Ji Lifang Zhang

An entry from the Inorganic Crystal Structure Database, the world’s repository for inorganic crystal structures. The entry contains experimental data from a crystal diffraction study. The deposited dataset for this entry is freely available from the joint CCDC and FIZ Karlsruhe Access Structures service and typically includes 3D coordinates, cell parameters, space group, experimental conditions and quality measures.

10.5517/ccdc.csd.cc2f4mpx

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Citations (0)

CSD 2238777: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Jingfang Zhou Pifu Gong Mingjun Xia Aimin Ji Lifang Zhang

10.5517/ccdc.csd.cc2f4mmv

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CSD 2120550: Experimental Crystal Structure Determination

The Cambridge Structural Database (2022)

Jingfang Zhou Rukang Li

10.5517/ccdc.csd.cc295lvy

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Citations (0)

CSD 2261864: Experimental Crystal Structure Determination

The Cambridge Structural Database (2023)

Jingfang Zhou Pifu Gong Mingjun Xia Qian Wu

Crystal (programming language)

10.25505/fiz.icsd.cc2fxncd

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CSD 2060371: Experimental Crystal Structure Determination

The Cambridge Structural Database (2021)

Qian Wu Jingfang Zhou Xiaomeng Liu Xingxing Jiang Qiaoxin Zhang

10.25505/fiz.icsd.cc274zlz

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Polymorphism of Niobium Phosphate Bronze Na₄Nb₈P₄O₃₂ Deduced by the Packings of Structural Units: A Centrosymmetric Phase

Inorganic Chemistry (2024)

Jingfang Zhou Pifu Gong Aimin Ji Mingjun Xia Jiayi Jin

Herein, a new centrosymmetric phase Na4Nb8P4O32 (referred to as CS-Na4Nb8P4O32) was obtained by a molten salt method, which is a polymorph of niobium phosphate bronze Na4Nb8P4O32. CS-Na4Nb8P4O32 displays high structural similarity to the noncentrosymmetric Na4Nb8P4O32 phase (referred to as NCS-Na4Nb8P4O32): Distorted NbO6 octahedra are corner-coordinated to form ReO3-type layers, which are further joined together by isolated PO4 tetrahedra. However, two polymorphous phases adopt different packings of structural units, resulting in distinct symmetries. NbO3 layers and PO4 tetrahedra are reversely arranged along the crystallographic a direction in CS-Na4Nb8P4O32, thereby producing a centrosymmetric structure. The reverse packing cancels out all contributions of dipole moments originating from the distorted NbO6 octahedra; NCS-Na4Nb8P4O32 exhibits the C2-rotation distribution of NbO3 layers and PO4 tetrahedra, thus generating a noncentrosymmetric and polar structure. The C2-rotation packing of structural units brings a constructive addition of the dipole moments, further obtaining large calculated independent second harmonic generation susceptibilities. The study of structural evolution deduced by the packings of structural units in polymorphous Na4Nb8P4O32 might provide valuable insights into polymorphism and structural regulation.

Tetrahedron

10.1021/acs.inorgchem.4c00914

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