POLYMER
·
2012
·
IF 3.438
Gang Zhang,Hao-hao Ren,Dong-sheng Li,Sheng-ru Long,Jie Yang
A highly refractive and transparent poly(arylene sulfide sulfone) (PASS) containing pyrimidine (or pyridazine) unit has been developed. The polymer was prepared by a polycondensation reaction of 4,4′-dimercaptodiphenyl sulfone (DMDPS) and 4,6-dichloropyrimidine (DCPM) (or 3,6-dichloropyridazine (DCPD)). They showed good thermal stabilities such as a relatively high glass transition temperature of 193–202 °C and a 5% weight loss temperature ( T 5% ) of 370–372 °C. The optical transmittance of the polymer at 450 nm is higher than 81%. The heterocycles unit and plural –S– linkages provides the polymer with a high refractive index of 1.737–1.743 at 633 nm and a low birefringence of 0.003–0.004.
研究领域:
材料科学
·
高分子化学
✓ 已验证
产品关联
DOI
高影响因子
Journal of Materials Chemistry C
·
2021
·Vol. 9
·期 42
·15321-15328
·
IF 7.393
Haonan Liu,Hongping Wu,Hongwei Yu,Zhanggui Hu,Jiyang Wang,Yicheng Wu
Designing new nonlinear optical (NLO) materials with a strong second harmonic generation (SHG) response, wide transparent range and moderate birefringence is a significant but addressable challenge. By introducing Mo6+ and Zn2+ cations into phosphates, a prospective non-centrosymmetric (NCS) phosphate, K2ZnMoP2O10, has been rationally designed. Physical property measurements indicate that K2ZnMoP2O10 exhibits a strong SHG response (∼6.8 × KDP), a moderate birefringence (0.0534@450.2 nm), a wide transparent range (0.38–4.5 μm) and a high laser-damage threshold (>910 MW cm−2). In addition, a high quality K2ZnMoP2O10 single crystal with a size of 14 × 8 × 4 mm3 has also been grown using a top-seeded solution growth method, which is the first large-size crystal of molybdophosphates reported to date. These results indicate that K2ZnMoP2O10 is a potential NLO material. The discovery of K2ZnMoP2O10 also suggests that introducing various types of NLO-active structural units is helpful for balancing the SHG response and birefringence of materials.
研究领域:
材料科学
·
晶体学
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2023
·Vol. 10
·期 8
·2268-2275
·
IF 7
Xiao-Bao Li,Chun-Li Hu,Fang Kong,Jiang-Gao Mao
Four new phosphates, namely, PbZn(PO4)F (1), PbSn(PO4)Cl (2), PbSn(PO4)Br (3) and PbSn(PO4)I (4), were successfully synthesized by hydrothermal and solid-state reaction methods. PbZn(PO4)F (1) was crystallized in a polar space group Pna21 and showed a significant SHG intensity of about 1.6 × KDP. PbSn(PO4)Cl (2) and PbSn(PO4)Br (3) were isostructural compounds, and they were crystallized in a monoclinic space group P21/n while PbSn(PO4)I (4) was crystallized in a triclinic space group P. PbZn(PO4)F (1) features a new 3D framework while compounds 2–4 show a layered structure. Interestingly, the thermal stability and band gap of PbM(PO4)X are decreased with an increase of the atomic number of the halogen atom, while the rule for birefringence is the opposite. Our work revealed the evolution effects of the halogen atoms on the structure and optical properties of PbM(PO4)X compounds.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 21
·5645-5652
·
IF 7.779
Yuan Lin,Chun-Li Hu,Zhi Fang,Jin Chen,Wei-Jie Xie,Yan Chen,Jian-Pu Wang,Jiang-Gao Mao
Three new potassium rare earth carbonates, namely KRE(CO3)2 (RE = Eu, Gd, Tb), were synthesized successfully. Their structures feature a novel [RE(CO3)2]− 3D framework with 1D channels along the c axis filled with K+ cations. Among them, KEu(CO3)2 and KTb(CO3)2 emit strong red and green photoluminescence, respectively. The birefringence values of KRE(CO3)2 were measured as 0.149, 0.162 and 0.215 at 546 nm, respectively. Remarkably, KTb(CO3)2 has the largest experimental birefringence among carbonates reported.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 19
·5024-5031
·
IF 7.779
Mengran Sun,Jiyong Yao
In this work, Ba2HgTe5, as the first compound identified in the Ba/Hg/Te system, has been successfully synthesized via a solid-state reaction. It crystallizes in the orthorhombic space group pnma and exhibits a 0D structure composed of linear [HgTe2] units and V-shaped [Te3] units arranged in an alternating manner. The experimental and theoretical calculation results indicate that Ba2HgTe5 is a potential IR birefringent material, possessing a moderate band gap (1.28 eV), giant optical anisotropy (Δncal = 0.643@2090 nm), a low melting point (576 °C), and congruent-melting behavior. The results of the structure–property relationship reveal that the band gap of Ba2HgTe5 is primarily defined by the Te p orbitals in the [Te3] unit. Further, the analysis of the response electron distribution anisotropy (REDA) illustrates that the large birefringence of Ba2HgTe5 is induced mainly from the linear [HgTe2] unit (about 90% contribution). This work demonstrates for the first time the rationality of the [HgTe2] group as the gene for designing IR birefringent materials.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Science China-Chemistry
·
2022
·Vol. 65
·期 4
·719-725
·
IF 10.138
Zhang Yanhui,Li Fuming,Yang Rong,Yang Yun,Zhang Fangfang,Yang Zhihua,Pan Shilie
The design and synthesis of new deep-ultraviolet (DUV) optical materials are important but challenging. It is well known that the polarizability anisotropy of linear [BO 2 ] − is larger than those of [BO 3 ] 3− and [BO 4 ] 5− , which is the better choice for exploring excellent optical materials. Here, we search for such crystals in borate systems based on the unusual fundamental structural unit [BO 2 ] − . By combining the linear [BO 2 ] − with the traditional triangular [BO 3 ] 3− and tetrahedral [BO 4 ] 5− units, a new mixed metal borate, Rb 5 Ba 2 (B 10 O 17 ) 2 (BO 2 ) was obtained via high-temperature solution method. It exhibits excellent optical properties including a DUV transmission window (188 nm) and suitable birefringence (0.06). It also has good thermal stability and its crystal plates can be prepared easily. Furthermore, the strategies of designing borates with [BO 2 ] − units have been proposed from the transformation of crystal framework and the preparation method.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·
IF 5.7
Jinwen Tan,Han Luo,Shiyi Wang,Ling Huang,Liling Cao,Xuehua Dong,Guohong Zou
A short-wave UV antimony(III) oxysalt, RbSb(SO4)(H2PO2)F, by incorporating three different anions (SO42-, H2PO2-, F-) with trivalent antimony cations that possess stereochemically active lone-pair electrons (SCALP), has been successfully synthesized. Significantly, the mixed anions and Sb3+ cations combine to form a low-dimensional 1D infinite anionic chain, denoted as [Sb(SO4)(H2PO2)F]∞-, where synergistic interactions among these units contribute to a substantial birefringence of 0.192 at 546 nm and achieve a short cutoff edge down to 276 nm. This research expands the family of UV birefringent optical materials and provides guidance for the further exploration of novel structural-functional materials.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2024
·Vol. 11
·期 12
·3520-3526
·
IF 6.1
Qiuyuan Feng,Jialong Wang,Changyou Liu,Qun Jing,Xiaoyu Dong
Novel NaVSeO5 birefringent crystals were successfully synthesized using a multifunctional group synergistic strategy, which combines a two-dimensional layered structure consisting of stereochemically active lone pairs [SeO3] and anomalous [VO6] polyhedra. Polarization microscopy tests reveal that NaVSeO5 possesses significant birefringence (0.180@546 nm). Theoretical analysis suggests that this birefringence is attributed to the synergistic effect between highly distorted V–O polyhedra and stereochemically active lone pairs of Se4+. Based on UV-Vis-NIR diffuse reflectance analysis, the crystal NaVSeO5 demonstrates a cut-off edge below 336 nm. This study provides valuable insights for future exploration of novel birefringent crystal materials.
研究领域:
材料科学
·
光学
·
晶体学
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2020
·Vol. 49
·期 15
·4914-4919
·
IF 4.174
Ting Wang,Yi-Gang Chen,Yao Guo,Fang Wang,Qi Song,Ying-Jie Jia,Xian-Ming Zhang
Isostructural mixed alkali/alkaline-earth metal tellurite halides BaLiTe2O5X (X = Cl, Br) have been successfully synthesized by a mild hydrothermal method, which possess the [Te2O5]∞ chains formed by the corner-sharing connections of the TeO3 and TeO4 polyhedra. The [Te2O5]∞ chains are bridged via the LiO3 polyhedra to form the [LiTe2O5]∞ layers with 4- and 6-membered rings. The adjacent [LiTe2O5]∞ layers are linked via the BaO9 polyhedra to form the [BaLiTe2O5]∞ double layers, which are further connected via weak Ba–X–Li interactions to generate a 3D framework. Analysis of different lithium tellurites shows that the different arrangements of the Te–O and Li–O units in the lithium tellurites can be attributed to the cation–cation repulsion and lone-pair effect. Both compounds display good thermal stability, wide optical bandgaps (4.25 and 4.13 eV), and large birefringence. First-principles calculations indicate that the TeOn groups and X− determine the optical properties of BaLiTe2O5X (X = Cl, Br).
研究领域:
材料科学
·
无机化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
DALTON TRANSACTIONS
·
2021
·Vol. 50
·期 16
·5617-5623
·
IF 4.39
Dandan Wang,Xinyuan Zhang,Fei Liang,Zhanggui Hu,Yicheng Wu
Birefringent crystals can modulate and detect the polarization of light, and have been widely used in the field of optoelectronic devices. The combination of a d10 transition metal cation and π-conjugated (H2C3N3O3)− group is a feasible approach for the synthesis of new crystal structures possessing large birefringence and short cutoff edges. Herein, a new hydroisocyanurate birefringent material Zn(H2C3N3O3)2·3H2O (ZHCY) was synthesized by a mild hydrothermal method. ZHCY featured a 2D layered ribbon structure constituted by coplanar π-conjugated (H2C3N3O3)− hydroisocyanurates, and displayed a wide band gap (5.24 eV) and a large birefringence (Δnexp ∼ 0.323, Δncal = 0.283 at 800 nm). Theoretical calculations revealed that its optical properties mainly originated from the π-conjugate coplanar (H2C3N3O3)− groups, which contribute to the enhancement of birefringence.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
INORGANIC CHEMISTRY
·
2021
·
IF 5.165
Zhe Dai,Yi-Gang Chen,Yao Guo,Fang Wang,Yuan-Yu Yang,Xian-Ming Zhang
The design of material by chemical and/or crystalline modification of a classic structure model benefits not only the optimized physical properties but also the controllability and efficiency. Herein, a new nonlinear-optical (NLO) beryllium borate crystal, Sr2Pb(BeB5O10)(BO3) (SPBBO), is successfully designed and synthesized by chemical and crystalline modification of the perovskite-like K3B6O10Cl NLO crystal. SPBBO displays a 3D BeB5O103– open-framework structure composed of interconnecting BeB5O13 groups with filled cationic Sr/Pb and anionic BO3 groups, which exhibits the striking enhancement of the second-harmonic-generation (SHG) response (8 × KDP) and birefringence (0.10) compared to the parent model. Replacement of K by Sr and Pb with a lone pair and replacement of Cl by conjugated BO3 result in the synergistic conjugation of Pb with host BeB5O103– and filled BO3 groups, contributing to the striking enhancement of the SHG and birefringence. Single-crystal measurements show that SPBBO has a short UV absorption edge of 280 nm with a wide energy band gap of 4.35 eV and an outstanding laser-induced resistant behavior with a remarkably high laser-induced damage threshold of 2100 MW cm–2. The excellent properties indicate that the SPBBO crystal is a very promising UV NLO functional material.
研究领域:
材料科学
·
晶体学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2021
·Vol. 45
·期 37
·17544-17550
·
IF 3.591
Zhen Chen,Hao Zeng,Shujuan Han,Zhihua Yang,Shilie Pan
The chlorine barium nitrate Ba(NO3)Cl was synthesized, for the first time to the best of our knowledge, by using a mild hydrothermal method. Its structure was observed to feature an ABW-type topology (BaCl-ABW) framework, which can be considered as stacks of honeycomb-shaped sheets. Also, Ba(NO3)Cl crystals with dimensions of up to 2 × 1 × 0.5 mm3 were grown. Remarkably, Ba(NO3)Cl was found to exhibit a short UV cutoff edge (below 213 nm) and a markedly enhanced birefringence (Δn = 0.178 @ 1064 nm), about 19 times that of its parent phase BaCl2 (Δn = 0.009 @ 1064 nm). Theoretical calculations indicated that the birefringence enhancement mainly derived from the planar [NO3] triangles.
研究领域:
材料科学
·
晶体学
✓ 已验证
产品关联
DOI
高影响因子
危险品化学品经营许可证（带存储）