Recent development of metal borate halides: Crystal chemistry and application in second-order NLO materials

Wang, Ying; Pan, Shilie

doi:10.1016/j.ccr.2015.12.008

Cited by 290 publications

(121 citation statements)

References 145 publications

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“…Viable DUV (<200 nm) optical materials play a critical role in optical communication and the laser industry12345, as they possess wide transparency range and high damage threshold678910. Among them, birefringent or nonlinear optical (NLO) materials are utilized in polarization beam splitters, optical isolators, semiconductor photolithography and laser micromachining1112131415.…”

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confidence: 99%

Predicting Global Minimum in Complex Beryllium Borate System for Deep-ultraviolet Functional Optical Applications

Bian

Yang

Wang

et al. 2016

Sci Rep

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Searching for high performance materials for optical communication and laser industry in deep-ultraviolet (DUV) region has been the subject of considerable interest. Such materials by design from scratching on multi-component complex crystal systems are challenging. Here, we predict, through density function calculations and unbiased structure searching techniques, the formation of quaternary NaBeBO3 compounds at ambient pressure. Among the four low-energy phases, the P63/m structure exhibits a DUV cutoff edge of 20 nm shorter than α-BaB2O4 (189 nm) – the best-known DUV birefringent material. While the P-6 structure exhibits one time second-harmonic generation efficiency of KH2PO4 and possesses excellent crystal growth habit without showing any layer habit as observed in the only available DUV nonlinear optical material KBe2BO3F2, whose layer habit limits its wide industrial applications. These NaBeBO3 structures are promising candidates for the next generation of DUV optical materials, and the structure prediction technique will shed light on future optical materials design.

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confidence: 99%

Predicting Global Minimum in Complex Beryllium Borate System for Deep-ultraviolet Functional Optical Applications

Bian

Yang

Wang

et al. 2016

Sci Rep

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“…Second,t he symmetry of the BO 4 tetrahedronw ill reduce after partial OÀFs ubstitution, leadingt oag reater proportion of NCS structures that are prerequisite for second-order NLO materials. Among the reportedb orate and all inorganic compounds,t he proportions of NCS structures in total are only about 36 %a nd 15 %, [14,47] respectively.C orrespondingly,a ccording to our statistics, more than half (about 56 %) of the fluorooxoborates crystallize in NCS space groups, which further validatest he effectiveness of our design strategy.…”

Section: The Characteristics Of Fluorooxoboratesmentioning

confidence: 99%

“…In the last 30 years,n umerous material design strategies have been proposed for developing new DUVN LO crystals. [38][39][40][41][42][43][44][45][46][47][48][49][50][51][52][53][54] Among them, metal borates have been regarded as ar ich sourceo fD UV NLO materials, owing to the extraordinary complexity and diversity of the structuralc hemistry of borates, which is based on the flexible coordinatione nvironments of boron (BO 3 trianglea nd BO 4 tetrahedron), [14,[55][56][57][58][59] and many borate-basedNLO materials have been found. The prominent representatives of these borate NLO materials are K 2 ] andL i 4 Sr(BO 3 ) 2 .…”

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confidence: 99%

Fluorooxoborates: Ushering in a New Era of Deep Ultraviolet Nonlinear Optical Materials

Han

Wang

Zhang

et al. 2018

Chemistry A European J

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Borates are one of the most important classes of functional materials, and several hundreds of artificial borates have been synthesized. The substitution of oxygen by fluorine leads to manifold classes of borates. Fluorooxoborates (also known as fluoroborates), in which the F atoms covalently connect with the B atoms, show additional compositional and structural diversity compared to classic borates. Recently, owing to the large polarizability anisotropy, large HOMO-LUMO gaps, and high hyperpolarizability of the oxyfluoride BO F building blocks, fluorooxoborates have received unprecedented attention in the search for new ultraviolet (UV) and deep-UV (DUV) nonlinear optical (NLO) materials. Specifically, some compounds have excellent NLO properties that are comparable or superior to KBe BO F , which is the only usable crystal that generates coherent light below 200 nm through a direct second harmonic generation (SHG) process. This Minireview illustrates recent progress on the synthesis, crystal structures, structure-properties relationships and applications of fluorooxoborates. This paper concludes by highlighting the outstanding opportunities offered by NLO fluorooxoborate crystals as an innovative avenue for DUV all solid-state coherent light generation.

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“…Earlier, and for the last years, some deep UV borate and fluoride-borate crystals have been grown [120][121][122][123][124][125][126]. These crystals expanded the possible boundary of transparence in the UV spectral region in comparison with borate crystals, and the essential part of these contributions was carried out by the Chen's group and other scientists [14,15,101,[120][121][122][123][124][125][126][127][128][129][130] 3 ], x = 0.33, has its polar trigonal C 3v point symmetry, while some other crystals (BaAlBO 3 F 2 , C 3h , Ba 7 (BO 3 ) 4−x F 2+3x , C 6 , Sr 2 Be 2 B 2 O 7 , D 3h, NaBeBO 3 , D 3h )-the hexagonal structure [124][125][126][127][128]. According to their oxide bond length, the borate and fluoride borate crystals with the moderate χ (2) -level are positioned in regions 1-2 or 7 (Figures 16 and 17).…”

Section: Interrelationship "Composition-structure-oxide Bond Length-nmentioning

confidence: 99%

“…The fluoride borate crystals KBe2BO3F2 (KBBF), RbBe2BO3F2 (RBBF), CsBe2BO3F2 (CBBF) and TlBe2BO3F2 (TBBF) have the trigonal D3-point symmetry (R32) [120][121][122]. The fluoride borate crystal, Sr3[(BexB1-x)3O10][Be(O1-xFx)3], x = 0.33, has its polar trigonal C3v point symmetry, while some other crystals (BaAlBO3F2, C3h, Ba7(BO3)4−xF2+3x, C6, Sr2Be2B2O7, D3h, NaBeBO3, D3h)-the hexagonal structure [124][125][126][127][128]. According to their oxide bond length, the borate and fluoride borate crystals with the moderate χ (2) -level are positioned in regions 1-2 or 7 ( Figures 16 and 17).…”

Section: Interrelationship "Composition-structure-oxide Bond Length-nmentioning

confidence: 99%

Comparative Interrelationship of the Structural, Nonlinear-Optical and Other Acentric Properties for Oxide, Borate and Carbonate Crystals

Kidyarov

2017

Crystals

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Abstract:The structure and the maximal nonlinear optical (NLO) susceptibility χ (2) are tabulated for more 700 acentric binary oxides, 220 crystals of simple, binary and complex borates and for the same set of 110 carbonates, tartrates, formates, oxalates, acetates and fluoride-carbonates used in ultraviolet and deep ultraviolet optoelectronics. According to the chemical formula, the structural symbols of these crystals have been plotted on the plane of two minimal oxide bond lengths (OBL). It is shown that acentric crystals are positioned on such plane inside the vertical, horizontal and slope intersected ellipses of "acentricity". The oxide and borate crystals with moderate NLO susceptibility are found in the central parts of these ellipses intersection and, with low susceptibility, on top, at the bottom and border of the ellipses rosette. The nonpolar fluoride-carbonate crystals with high NLO susceptibility are found in the curve-side rhombic parts of the slope ellipse of "acentricity". The unmonotonous fuzzy dependence "χ (2) " on the OBL of these crystals is observed, and their clear-cut taxonomy on compounds with π-or σ-oxide bonds is also established. It is shown that the correlations of χ (2) with other acentric properties are nonlinear for the whole set of the oxide crystals having their clear maximum at a certain value of the piezoelectric or electro-optic coefficient. The correlation "hardness-thermoconductivity-fusibility" is plotted for oxide crystals, part of which is used at the creation of self-frequency-doubling solid state lasers.

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Recent development of metal borate halides: Crystal chemistry and application in second-order NLO materials

Cited by 290 publications

References 145 publications

Predicting Global Minimum in Complex Beryllium Borate System for Deep-ultraviolet Functional Optical Applications

Predicting Global Minimum in Complex Beryllium Borate System for Deep-ultraviolet Functional Optical Applications

Fluorooxoborates: Ushering in a New Era of Deep Ultraviolet Nonlinear Optical Materials

Comparative Interrelationship of the Structural, Nonlinear-Optical and Other Acentric Properties for Oxide, Borate and Carbonate Crystals

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