Finding the Next Deep-Ultraviolet Nonlinear Optical Material: NH4B4O6F

Ba3B10O17Br2: a new barium borate halide with B–O layered structure

A new barium borate halide, Ba₃B₁₀O₁₇Br₂, has been obtained, and is the first barium borate halide with a B–O layered structure.

Perfect balance harmony in Ba2NO3(OH)3: a beryllium-free nitrate as a UV nonlinear optical material

Ba₂NO₃(OH)₃ exhibits a perfect balance of a large SHG coefficient, a short UV absorption cutoff edge, an appropriate birefringence, and stable physicochemical properties.

BaBOF3: a new aurivillius-like borate containing two types of F atoms

A new Aurivillius-like fluorine-containing borate, BaBOF₃, featuring both structural characteristics of borate fluorides and fluorooxoborates has been synthesized.

BaLiZn3(BO3)3: a new member of the KBe2BO3F2family possessing dense BO3triangles and the smallest interlayer distance

A new beryllium-free borate, BaLiZn₃(BO₃)₃, featuring dense BO₃triangles and the smallest interlayer distance among KBe₂BO₃F₂derivatives is developed.

Structural insights into T2-cluster-containing chalcogenides with vertex-, edge- and face-sharing connection modes of NaQ6 ligands: Na3ZnMIIIQ4 (MIII = In, Ga; Q = S, Se)

New series of T₂-cluster-containing chalcogenides exhibiting the novel connection mode of NaS₆ ligands and torsional adjacent T₂-clusters were reported.

K2TeP2O8: a new telluro-phosphate with a pentagonal Te–P–O layer structure

We report a new telluro-phosphate K₂TeP₂O₈ with an analogously pentagonal [TeP₂O₈]²⁻ layer structure.

Four new quaternary chalcogenides A2Ba7Sn4Q16 (A = Li, Na; Q = S, Se): syntheses, crystal structures determination, nonlinear optical performances investigation

Four new quaternary chalcogenides with interesting structures and potential nonlinear optical performances were synthesized for the first time.

Flexible coordination of Pb atoms and variable zinc–borate frameworks to construct three Pb5Zn4B6O18 polymorphs

Three Pb₅Zn₄B₆O₁₈ polymorphs were synthesized and phase transformations were investigated using powder X-ray diffraction, thermal analysis and theoretical simulation.

Crystal engineering, optical properties and electron density distribution of polar multicomponent materials containing sulfanilamide

Combination of qualitative and quantitative crystal engineering tools for efficient design and detailed analysis of novel functional materials.

The first lead fluorooxoborate PbB5O8F: achieving the coexistence of large birefringence and deep-ultraviolet cut-off edge

The first lead fluorooxoborate was synthesised as a potential birefringent material, which achieved the coexistence of large birefringence and short cut-off edge.

Ion-induced structural and optical performance evolution in LBO-like crystals: experimental and theoretical investigation

A new alkali metal borate fluoride Li₃KB₉O₁₅F has been obtained for the first time with a UV cut-off edge below 175 nm.

Pb3(SeO3)Br4: a new nonlinear optical material with enhanced SHG response designedviaan ion-substitution strategy

A new NLO material has been designedviaion-substitution from a similar structure. It shows an enhanced SHG response equalling to that of KH₂PO₄(KDP) and a high laser damage threshold of 67 MW cm⁻¹.

PbFePO4F2 with a 1/6th bond depleted triangular lattice

A 1/6th bond depleted triangular lattice has been experimentally realized in the novel compound PbFePO₄F₂ with moderately strong frustration.

Indium selenide monolayer: a two-dimensional material with strong second harmonic generation

The In₂Se₃ monolayer may be a material with the strongest SHG response among IIIA–VIA semiconductors reported to date.

K11RbB28O48: a new triple-layered borate with an unprecedented [B28O57] fundamental building block

A new borate, K₁₁RbB₂₈O₄₈, featuring an unprecedented [B₂₈O₅₇] fundamental building block and an unusual triple-layered anionic group, has been synthesized.

NH4B11O16(OH)2: a new ammonium borate with wavy-shaped polycyclic 2∞[B11O16(OH)2] layers

The ammonium borate NH₄B₁₁O₁₆(OH)₂ has been successfully synthesized by a mild hydrothermal method.

MBaYB6O12(M = Rb, Cs): two new rare-earth borates with large birefringence and short ultraviolet cutoff edges

MBaYB₆O₁₂(M = Rb, Cs), two new promising birefringent materials with large birefringence and short UV cutoff edges.

Ba2ZnSc(BO3)3and Ba4Zn5Sc2(BO3)8: first examples of borates in the Zn–Sc–B–O system featuring special structure configurations

First examples in the Zn–Sc–B–O system featuring a special Zn/Sc–O configuration ([Zn₂(BO₃)₆]¹⁴⁻cluster, lowest-coordinated ScO₅polyhedra, and coexistence of ZnO₄and ZnO₆units).

High-Pressure Synthesis and Characterization of the Ammonium Yttrium Borate (NH4)YB8O14

The first high-pressure yttrium borate (NH₄)YB₈O₁₄ was synthesized at 12.8 GPa/1300 °C using a Walker-type multianvil module. The compound crystallizes in the orthorhombic space group Pnma (no. 62) with the lattice parameters a = 17.6375(9), b = 10.7160(5), and c = 4.2191(2) Å. (NH₄)YB₈O₁₄ constitutes a novel structure type but exhibits similarities to the crystal structure of β-BaB₄O₇. X-ray single-crystal and powder diffraction, EDX, vibrational spectroscopy as well as quantum chemical calculations were used to characterize (NH₄)YB₈O₁₄.

Viewpoint: Inorganic Materials for UV and Deep-UV Nonlinear-Optical Applications

New inorganic nonlinear-optical (NLO) materials are necessary for solid-state lasers to generate coherent radiation in the ultraviolet (UV) and deep-UV regions. The purpose of this Viewpoint is to describe the chemical and physical requirements for such materials, as well as the current state of the field. In addition, the "birefringence challenge" is described and a flowchart is presented for characterizing new second-harmonic-generation materials. Finally, several new materials are suggested that may have UV and/or deep-UV NLO applications.

ScMO(BO3) (M = Ca and Cd): new Sc-based oxyborates featuring interesting edge-sharing sandwich-like chains and UV cut-off edges

Two new Sc-based oxyborates, ScMO(BO₃) (M = Ca and Cd), have been synthesized, which possess interesting edge-sharing sandwich-like chains and UV cut-off edges.

Li3Ge3Se6: the first ternary lithium germanium selenide with interesting∞[Ge6Se12]nchains constructed by ethane-like [Ge2Se6]6−clusters

The first lithium germanium selenide, Li₃Ge₃Se₆with the first discovered chain formed by [Ge₂Se₆]⁶⁻clusters in the [Li₃Se₆] tunnels.

Investigation on the structural, linear/nonlinear optical and electrical characteristics of Cd- and Mn-doped polar lithium sulfate monohydrate crystals

Doped LSMH single crystals exhibited good transmittance percentage, lower birefringence, enhanced SHG efficiency and good piezoelectric response compared to undoped LSMH crystals.