Advanced Optical Materials
·
2024
·
IF 8
Dongling Yang,Hongyuan Sha,Zujian Wang,Rongbing Su,Chao He,Bin Su,Xiaoming Yang,Xifa Long
Non-centrosymmetric organics are promising nonlinear optical (NLO) candidates, which always exhibit a short UV absorption cutoff edge, and a strong second harmonic generation (SHG) response, but an overlarge birefringence. Here, in order to optimize the birefringence, the methyl modulation of π-conjugated organic planar units is proposed and implemented with the urea structure as a template. Thus, N -methylurea and N,N' -dimethylurea crystals are obtained by partially replacing hydrogen atoms with methyl groups. This replacement reduces hydrogen donors and weakens interchain hydrogen bonds, which facilitates the decreasing density and the parallel arrangement of π-conjugated planar units. Hence, both N -methylurea and N,N' -dimethylurea crystals exhibit not only an optimized birefringence ( N -methylurea ≈0.099 and N,N' -dimethylurea ≈0.072 at 546 nm) but also an enhanced SHG response ( N -methylurea ≈1.2 × β -BaB 2 O 4 and N,N' -dimethylurea ≈1.9 × β -BaB 2 O 4 ), while maintaining a short UV absorption cutoff edge. Therefore, this work provides a novel strategy for the structural design and performance modulation of organic NLO crystals.
研究领域:
材料科学
·
光学
✓ 已验证
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2025
·
IF 7
Yurui Wang,Xuehua Dong,Wei Zeng,Ling Huang,Zhien Lin,Hongmei Zeng,Guohong Zou
Designing nonlinear optical (NLO) materials that simultaneously exhibit enhanced second-harmonic generation (SHG), moderate birefringence (Δn), and short-wavelength ultraviolet (UV) transparency remains a significant challenge. This study presents a stepwise structural regulation strategy using the International Zeolite Association (ABW)-type zeolite NH4BePO4 (I) as the parent material. By systematically modulating the anionic units, we successfully synthesized two compounds: KBe2(HPO3)2F (II) and NH4Be2(OH)(SeO3)2·H2O (III). Compound III represents a breakthrough, demonstrating an SHG intensity 4.0 times greater than that of KH2PO4, a birefringence of 0.080 at 546 nm, and a UV cutoff at 203 nm. The enhanced optical anisotropy and NLO efficiency of compound III arise from the stereochemically active lone pairs in the [SeO3] groups. By optimizing SHG intensity, short-wavelength UV transparency, and birefringence simultaneously, compound III addresses the key challenge of designing high-performance short-wavelength UV NLO materials. This work not only validates the stepwise regulation strategy but also provides a design framework for achieving balanced NLO performance, paving the way for the development of next-generation optical materials.
研究领域:
材料科学
·
非线性光学
·
无机化学
·
晶体工程
·
光学材料
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2025
·
IF 6.4
Lei Wu,Xudong Leng,Bao Jiang,Xueyin Fu,Yi Huang,Xue Yu,Qun Jing,Zhaohui Chen
By leveraging second-harmonic generation (SHG) capabilities, ultraviolet (UV) nonlinear optical (NLO) crystals can efficiently produce UV coherent light and are essential components for advancing UV solid-state laser systems. Herein, two new bismuth phosphates, Rb1.32Bi3.56P2O11 (I) and K1.08Bi3.64P2O11 (II), were synthesized via a high-temperature melt method. Of them, Rb1.32Bi3.56P2O11 exhibits a significant phase-matching SHG response (2.8 × KDP) and large birefringence (0.062 @ 532 nm, 0.053@1064 nm), along with an expanded UV transmission window. Moreover, theoretical analyses revealed that the optimized optical polarizability of Rb1.32Bi3.56P2O11 primarily arises from the cooperative effects of the one-dimensional (1D) polycationic Bi(2)Bi(2)×Bi(1)Bi(1)×Bi(1)Bi(1)×Bi(2)Bi(2) ribbons and [PO4] tetrahedron. We believe the work will provide a valuable strategy to design UV NLO materials with good performances.
研究领域:
材料科学
·
光学
·
无机化学
·
固体物理
✓ 已验证
产品关联
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2020
·Vol. 8
·期 2
·344-351
·
IF 5.958
Jiankang Wang,Binkai Xiong,Hongping Wu,Hongwei Yu,Zhanggui Hu,Jiyang Wang,Yicheng Wu
Exploring new nonlinear optical (NLO) crystals with large second harmonic generation (SHG) responses and easy crystal growth is urgent and a considerable challenge. By combining the Bi3+ cation with stereochemically active lone pairs and the d10 Cd2+ cation, a new noncentrosymmetric and polar metal phosphate, Bi32Cd3P10O76 (BCPO), has been successfully synthesized. It exhibits a large SHG response (∼4 × KDP) and a wide transmission range (0.36–4.9 μm). What's more, this compound melts congruently. We have grown its high-quality single crystals with sizes up to 19 × 13 × 6 mm3. These results indicate that BCPO will be a potential NLO material, especially for application in the 3–5 μm range. Further, its structure–property relationship has also been studied based on dipole moment calculation.
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
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Long-Qi Yang,Xiao-Ming Jiang,Shao-Min Pei,Wen-Fa Chen,Bin-Wen Liu,Guo-Cong Guo
Exploring new infrared nonlinear optical (IR NLO) materials with superior overall properties is scientifically and technically important. However, large second-order harmonic generation (SHG) efficiencies and high laser-induced damage thresholds (LIDT) are incompatible, which makes realizing this goal a challenge. The IR NLO performance of an A-NIIB-MIIIA-Q (Q: chalcogen) system was optimized by simultaneously modulating A/(M + N) and M/N ratios (A: alkali metal; N, M: tetra-coordinated metals), and SHG–LIDT balance was achieved. Three new sulfides, KCd3Ga5S11 (1), RbCd4Ga3S9 (2), and Cs2Cd2Ga8S15 (3), containing the same CdS4 and GaS4 but with different A/(Ga + Cd) and Ga/Cd ratios were obtained. Among these compounds, compound 3 exhibits both the largest SHG efficiency (0.5 × AgGaS2) and LIDT (35 × AgGaS2), which can be ascribed to the Ga/Cd modulation for enhancing the NLO functional motif distortions and SHG efficiency as well as the A/(Ga + Cd) modulation for enlarging the band gap and LIDT. Remarkably, compound 3 is the first phase-matchable IR NLO material in the A-NIIB-MIIIA-Q family. This article proposes a novel avenue to explore infrared nonlinear materials with superior comprehensive properties by modulating the A/(M + N) and M/N ratios.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF SOLID STATE CHEMISTRY
·
2023
·
IF 3.3
Yue-Ling Sun,Gang-Xiang Liu,Yi-Lei Lv,Liang Ma,Wen-Dong Yao,Ru-Ling Tang
Phosphate crystals are valuable materials according to their diverse structures and physical and chemistry properties. A zinc orthophosphate, (NH 4 ) 3 (H 3 O)Zn 4 (PO 4 ) 4 , has been obtained via hydrothermal route. It was crystallized in hexagonal space group P 6 3 , featuring a three-dimensional (3D) [Zn(PO 4 )] – anion network built by corner-sharing connected ZnO 4 and PO 4 tetrahedra. The NH 4 + and H 3 O + units are located in the six-member cavities of the framework as the balanced cations. (NH 4 ) 3 (H 3 O)Zn 4 (PO 4 ) 4 exhibits a moderate and phase matchable second harmonic generation effect (SHG) about 1.4 times of KH 2 PO 4 (KDP), which is the strongest in zinc orthophosphates. Besides structural features, optical properties measurements and theoretical analyses of (NH 4 ) 3 (H 3 O)Zn 4 (PO 4 ) 4 were performed.
研究领域:
材料科学
·
光学
·
晶体学
·
化学
✓ 已验证
DOI
高影响因子
CHEMISTRY OF MATERIALS
·
2020
·
IF 9.567
Qian-Ming Huang,Chun-Li Hu,Bing-Ping Yang,Ru-Ling Tang,Jin Chen,Zhi Fang,Bingxuan Li,Jiang-Gao Mao
The first polar alkaline-earth metal molybdenum iodate, Ba2[MoO3(OH)(IO3)2]IO3, with a Λ-shaped [MoO3(OH)(IO3)2]3– functional motif, was rationally designed. A zero-dimensional (0D) [MoO3(OH)(IO3)2]3– unit is derived from 0D [MoO2(OH)(IO3)3]2– polyanion through anionic mono-site substitution. Ba2[MoO3(OH)(IO3)2]IO3 possesses a strong phase-matchable second-harmonic-generation (SHG) response of approximately 8 times that of benchmark KH2PO4 (KDP), a broad transparent spectral region from near-ultraviolet to mid-infrared (0.29–10.6 μm), a large band gap of 3.78 eV, and a high laser-induced damage threshold (LDT) of 92.3 MW cm–2. The results suggest that Ba2[MoO3(OH)(IO3)2]IO3 can be potentially applied in the mid-infrared nonlinear optical field. Theoretical calculations demonstrate that the large SHG response of the title compound originates mainly from the Λ-shaped [MoO3(OH)(IO3)2]3– functional unit. From multisite substitution to mono-site substitution, this work provides a more generic route to synthesize SHG materials.
研究领域:
材料科学
·
晶体化学
✓ 已验证
产品关联
DOI
高影响因子
INORGANIC CHEMISTRY
·
2019
·
IF 4.85
Zhen-Tao Lu,Zong-Dong Sun,Yang Chi,Huai-Guo Xue,Sheng-Ping Guo
Two isostructural adducts CHI3·(S8)3 (1) and AsI3·(S8)3 (2) are synthesized by a simple solution method. Both of them crystallize in noncentrosymmetric R3m, featuring van der Waals interaction linked CHI3 tetrahedra or SbI3 trigonal pyramids with crown-like S8 molecules. Both 1 and 2 show strong SHG responses and phase matchability under either 1.064 or 2.1 μm. The results of DFT calculations indicate that the electron transfer happens from S-3p to I-5p orbitals, and both of them demonstrate indirect band gaps. The NLO effects of 1 and 2 are almost fully contributed from the CHI3 or AsI3 units. Compared with AgGaS2, their powder laser damage thresholds are ca. 15 and 51 times higher.
研究领域:
材料科学
·
光学
·
化学
✓ 已验证
DOI
高影响因子
INORGANIC CHEMISTRY
·
2021
·
IF 5.165
Yuan-Bin Fang,Rui-Biao Fu,Hong-Xin Tang,Qi-Rui Shui,Zu-Ju Ma,Xin-Tao Wu
Nonlinear-optical (NLO) crystal is an important photoelectric functional material. In this work, a new NLO titanium iodate, (H3O)2Ti(IO3)6, along with Ti(IO3)4 has been synthesized under facile conditions. The space group of (H3O)2Ti(IO3)6 is the chiral noncentrosymmetric group R3 (No. 146), with an interesting three-dimensional framework, while that of Ti(IO3)4 is the centrosymmetric space group P1̅ (No. 2) containing one-dimensional chains. Thermogravimetric analysis shows that (H3O)2Ti(IO3)6 and Ti(IO3)4 have no weight loss below 220 and 390 °C, respectively. In addition, (H3O)2Ti(IO3)6 not only is thermally stable up to 200 °C in an air atmosphere but also is stable in water. (H3O)2Ti(IO3)6 has a moderate-intensity second-harmonic-generation (SHG) response (1.4×KDP), a large laser-induced damage threshold (46×AgGaS2), and high transmittance in the wavelength ranges of 0.5–1.4 and 2.5–10 μm. Both local dipole moment and systematic theoretical calculations reveal that the SHG response of (H3O)2Ti(IO3)6 is mainly because of the combined effect of [TiO6] octahedra and IO3 and IO4 units. In a word, (H3O)2Ti(IO3)6 exhibits good NLO performances, as well as water resistance and facile growth of a single crystal with high quality, indicating its potential application as NLO materials in the visible and mid-IR regions, especially the visible region.
研究领域:
材料科学
·
光学
·
晶体学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
CHEMISTRY OF MATERIALS
·
2023
·
IF 8.6
Min Wan,Yan-Ning Wang,Wen-He Zhong,Hao-Ran Chen,Zi-Mu Li,Cai-Hong Shi,Qing-Ling Cao,Jie-Yu Zhu,Li-Zhuang Chen
In the realm of optical and quantum computing, second-harmonic generation (SHG) serves as a valuable nonlinear optical element for both optical signal processing and quantum information processing. Herein, we report a series of innovative nonlinear optical (NLO) materials, denoted as (4-F-BTAB)ReO4, (4-Cl-BTAB)ReO4, and (4-Br-BTAB)ReO4 (BTAB = para-halobenzyltrimethylammoniun), which show illustrious high-contrast “off-on–off” SHG conversion over a broad temperature range. The precise halogen modification of cations not only achieves significant SHG signal intensity (1.08 × KDP–3.23 × KDP) but also elevates phase transition temperatures from 415.5 to 474.4 K. Notably, (4-Br-BTAB)ReO4 demonstrates a heightened SHG-active state with an increase of nearly 60 K, along with a wide band gap of 3.646 eV and enhanced piezoresponse performance of 2.25 V. This study contributes to the diversification of switchable NLO materials.
研究领域:
光学材料
·
量子计算
·
材料科学
·
非线性光学
✓ 已验证
DOI
高影响因子
Inorganic Chemistry Frontiers
·
2022
·Vol. 9
·期 20
·5377-5385
·
IF 7.779
Ru-Ling Tang,Gang-Xiang Liu,Wen-Dong Yao,Li-Nan Zhang,Wenlong Liu,Sheng-Ping Guo
Phosphite materials have aroused wide attention due to their diverse open frameworks and promising magnetic and optical performances. Here, the first barium scandium phosphite, BaSc2(HPO3)4(H2O)2, was obtained via a facile hydrothermal route. BaSc2(HPO3)4(H2O)2 crystallizes in the polar space group Pn and exhibits a 3D {[Sc2(HPO3)4]2−}∞ anion framework constructed by distorted ScO6 octahedra and HPO32− anion groups. BaSc2(HPO3)4(H2O)2 can exhibit a phase-matchable SHG response of about 0.94 × KH2PO4 at 1064 nm, and a moderate birefringence (0.036@1064 nm) to satisfy the phase-matchable behavior requirement. Deep investigation of its structure–property relationship based on theoretical calculations has also been presented in this work.
研究领域:
材料科学
·
晶体学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）