Journal of Materials Chemistry C
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2024
·Vol. 13
·期 1
·242-249
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IF 5.7
Lidong Wang,Xueting Fu,Peng Du,Hai Jiang,Laihui Luo
The versatility of emission modes and colors in flexible films is essential for broadening their potential applications. This study presents the development of a multi-mode luminescent flexible film by integrating ZnS:Cu and LiNbO3:Pr3+ powders into a polydimethylsiloxane (PDMS) matrix. The ZnS:Cu and LiNbO3:Pr3+ powders are uniformly distributed in the PDMS matrix. The effect of the LiNbO3:Pr3+ content on the photoluminescence (PL), electroluminescence (EL), mechanoluminescence (ML), thermoluminescence (TL), and photostimulated luminescence (PSL) properties of the films has been investigated. The PL colors of the LiNbO3:Pr3+/ZnS:Cu/PDMS flexible films due to the distinct intrinsic emissions of ZnS:Cu and LiNbO3:Pr3+ can be changed by altering the excitation wavelength. An appropriate content of the LiNbO3:Pr3+ powder introduces PSL into the flexible films, while the films demonstrate excellent EL and ML performance, along with multicolored TL emissions, including red and green. This research offers a novel approach to enhancing flexible electronic displays, EL devices, and optical anti-counterfeiting technologies.
研究领域:
材料科学
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光学工程
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产品关联
DOI
高影响因子
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
·
2023
·Vol. 107
·期 2
·956-967
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IF 3.9
Sai-Dong Xue,Yu-Jing Yang,De-Long Zhang
Growth of Er 3+ -doped 100-nm thick LiNbO 3 (LN) films on Z-cut LiTaO 3 (LT) single-crystal by e -beam evaporation and in-situ anneal at 600–800°C was studied. Crystalline phase, crystallographic orientation, Er 3+ spectroscopic properties, constituent element valence states, defects, Er 3+ concentration and stoichiometry of the films were characterized. The results show that the films are in LN single-crystal state and orient along with c crystallographic axis. Constituent elements Li, O and Er are present in their respective single valence states Li + , O 2− , Er 3+ , while the Nb is in two valence states Nb 5+ and Nb 4+ . The films have Li 2 O-contents around congruent point. Antisite(Nb Li 4+ ) is the major defect. Its concentration decreases, while Li 2 O-content, crystallinity degree, and fluorescence intensity increase with increased growth temperature. The presence of Er 3+ in the grown films is in the form of LN crystalline phase. Its concentration is considerably lower than that in initial target material because of lower e -beam evaporation efficiency of heavy Er 3+ .
研究领域:
材料科学
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光学工程
✓ 已验证
产品关联
DOI
高影响因子
Materials Today Communications
·
2025
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IF 4.5
Yutong Sun,Qun Zeng,Yanghong Cheng,Zezhong Li
A series of Tm 3+ /Dy 3+ /Eu 3+ single and co-doped LiNbO 3 color tunable phosphors were synthesized via the solid-state reaction. The phase structure, microscopic topography, optical characteristics, decay lifetimes, energy transfer processes，and thermal stability were comprehensively characterized through combined X-ray diffraction analysis, scanning electron microscope, and advanced spectroscopic methodologies. Following further in-depth analysis, the optimal concentration of dopant ions was determined, and the energy transfer effect between activators in the LiNbO 3 matrix was confirmed. The CIE demonstrated that adjusting the doping concentration of rare earth ions makes it possible to achieve polychromatic tunable light, as well as cool and warm white light. Crucially, Li 0.95 NbO 3 :0.01Tm 3+ /0.02Dy 3+ /0.02Eu 3+ phosphor exhibited remarkable thermal stability, maintaining 97.1 % of its initial strength at temperatures of 423 K. Additionally, WLEDs that have been coated with the aforementioned phosphor on a 365 nm NUV chip emit bright white light, exhibiting a color rendering index of 81.3 and correlated color temperature of 5426 K. It is powerfully suggested that the LiNbO 3 :Tm 3+ /Dy 3+ /Eu 3+ phosphors has the potential to become a new choice for WLED application.
研究领域:
材料科学
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光学
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产品关联
DOI
高影响因子
Nano Energy
·
2022
·
IF 19.069
Yanhua Cui,Zengkai Wang,Binrong Li,Yan Yan,Ruibo Xu,Minjia Meng,Yongsheng Yan
Piezoelectric materials have been widely used in photocatalytic systems as it forms a built-in electric field to facilitate the migration of photo-induced charge-carriers. Herein, we report a three-dimensional (3D) porous g-C 3 N 4 /LiNbO 3 /PVDF membrane with an enhanced fluid-induced piezoelectric field for photocatalytic hydrogen evolution reaction (HER). The freezing phase inversion strategy is critical to the formation of piezoelectric sensitive β phase PVDF. The unique 3D porous membrane structure and the fluid-induced piezoelectric potential synergistically contribute to the HER efficiency under white light illumination. The as-prepared g-C 3 N 4 /LiNbO 3 /PVDF piezoelectric photocatalytic membrane (19.6875 cm 2 in size) exhibited HER rate of 136.02 µmol h −1 , which was even higher than that of the g-C 3 N 4 /LiNbO 3 powder sample (111.8 µmol h −1 ) with the identical mass of catalyst particles . In-situ diffuse reflection infrared Fourier transform spectroscopy (DRIFTS) demonstrates a better water affinity of the porous g-C 3 N 4 /LiNbO 3 /PVDF piezoelectric membrane prepared by the freezing phase inversion than other PVDF membranes prepared by traditional phase inversion and vacuum drying methods. Piezoelectric force microscopy (PFM), in-situ piezoelectric and piezoelectric current measurements further visualized the fluid-induced piezoelectric field on 3D g-C 3 N 4 /LiNbO 3 /PVDF membrane, by which boosting the HER efficiency.
研究领域:
材料科学
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能源化学
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产品关联
DOI
高影响因子
ADVANCED MATERIALS
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2025
·Vol. 37
·期 21
·2501131
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IF 26.8
Jianfeng Yan,Jiajia Tan,Quanhua Lin,Zhihao Zhang,Ziang Liu,Qiang Fu,Lei Yuan,Qi Zhang,Xu Feng,Shifeng Zhou
LiNbO 3 nanocrystal-glass composites (LiNbO 3 -NGC), characterized by its unique 3D random domain structure, have shown great promise for significant applications, such as femtosecond pulse monitoring and full-color 3D displays. However, the nonlinear response of the LiNbO 3 -NGC is greatly suppressed by the defects, and effective manipulation of these defects remains a long-standing challenge. In this study, a Na-hybridization strategy is proposed to control defects in the LiNbO 3 -NGC to enhance its nonlinear properties and realizing its practical application for ultrashort optical pulse monitoring. The findings reveal that the incorporation of Na ions effectively reduces the defects within the composite, resulting in significantly improved nonlinear effects. By using this hybridized LiNbO 3 -NGC, the transverse second-harmonic generation is achieved. An ultrashort optical pulse system is also constructed and successfully applied it for real-time quantitative measurement of the duration, distribution, and front tilting of optical pulses in the 10 −15 s scale. These results not only present an excellent example about defect engineering in nonlinear LiNbO 3 -NGC but also point to practical applications for the measurement of extreme physical parameters.
研究领域:
材料科学
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光学工程
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物理化学
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产品关联
DOI
PubMed
高影响因子
Journal of Materials Chemistry C
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2019
·Vol. 7
·期 21
·6301-6307
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IF 6.641
Puxian Xiong,Mingying Peng
Mechanoluminescence (ML) from most state-of-the-art phosphors primarily appears within the spectral range of ultraviolet to visible and does not lie in the biological transparency windows, therefore limiting its application in biological fields. In this study, we report a novel Nd3+ doped LiNbO3 phosphor, which demonstrates intense and elastic near infrared (NIR) ML under compressive forces. The ML intensity increases with force from 500 to 2500 N, and it remains stable under larger forces due to the failure of the resin. Both the starting and stopping of force loading are found to trigger ML, but the intensity is weakened over time. Meanwhile, this ML emission, peaking at 895 nm, is located within the first biological transparency window range (650–950 nm), and it has been proved to penetrate tissue thicker than 20 mm. This, therefore, extends ML into the NIR range and makes it possible to detect biomechanical behavior in situ inside living bodies.
研究领域:
材料科学
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光学
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生物医学工程
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DOI
高影响因子
Membranes
·
2023
·Vol. 13
·期 2
·216
·
IF 4.2
Shishuo Liang,Dong Yang,Jianhua Hu,Shusen Kang,Xue Zhang,Yanchen Fan
With the rapid development of energy storage and electric vehicles, thiophosphate-based all-solid-state batteries (ASSBs) are considered the most promising power source. In order to commercialize ASSBs, the interfacial problem between high-voltage cathode active materials and thiophosphate-based solid-state electrolytes needs to be solved in a simple, effective way. Surface coatings are considered the most promising approach to solving the interfacial problem because surface coatings could prevent direct physical contact between cathode active materials and thiophosphate-based solid-state electrolytes. In this work, Li7La3Zr2O12(LLZO) and LiNbO3(LNO) coatings for LiCoO2(LCO) were fabricated by in-situ interfacial growth of two high-Li+conductive oxide electrolytes on the LCO surface and tested for thiophosphate-based ASSBs. The coatings were obtained from a two-step traditional sol–gel coatings process, the inner coatings were LNO, and the surface coatings were LLZO. Electrochemical evaluations confirmed that the two-layer coatings are beneficial for ASSBs. ASSBs containing LLZO-co-LNO coatings LiCoO2(LLZO&LNO@LCO) significantly improved long-term cycling performance and discharge capacity compared with those assembled from uncoated LCO. LLZO&LNO@LCO||Li6PS5Cl (LPSC)||Li-In delivered discharge capacities of 138.8 mAh/g, 101.8 mAh/g, 60.2 mAh/g, and 40.2 mAh/g at 0.05 C, 0.1 C, 0.2 C, and 0.5 C under room temperature, respectively, and better capacity retentions of 98% after 300 cycles at 0.05 C. The results highlighted promising low-cost and scalable cathode material coatings for ASSBs.Keywords:solid-state batteries;LiCoO2;sulfide solid-state electrolyte;LiNbO3-coating;LLZO-coating
研究领域:
材料科学
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电化学
✓ 已验证
DOI
PubMed
高影响因子
ELECTROCHIMICA ACTA
·
2023
·
IF 6.6
Xiaohan Li,Qing Ye,Zhan Wu,Wenkui Zhang,Hui Huang,Yang Xia,Yongping Gan,Xinping He,Xinhui Xia,Jun Zhang
The all-solid-state lithium battery (ASSLB) with lithium-rich manganese oxide (LRMO) cathode material is one of the strongest competitors for the next generation energy-storage device with high energy density. However, due to the serious interfacial reaction between LRMO and halide solid-state electrolyte (SSE), its electrochemical performance cannot meet the practical demand. In this work, in-situ electrochemical impedance spectroscopy (EIS), X-ray photoelectron spectroscopy (XPS) tests and high resolution transmission electron microscope (HR-TEM) are carried out to clarify the interfacial reaction mechanism between LRMO and Li 3 InCl 6 (LIC). The active oxygen released from LRMO and phase transition of LRMO are confirmed to seriously deteriorate the LRMO/LIC interface. To solve the above problems, a uniform LiNbO 3 coating is introduced to alleviate the interfacial side reaction and phase transition of LRMO. With moderate coating amount (1.5 wt%, ∼10 nm thick), the LNO@LRMO cathode shows an initial discharge capacity of 185 mA h g − 1 with 67% capacity retention after 100 cycles in halide-based ASSLB, which greatly exceeds that of bare LRMO cathode under voltage range of 2.3–4.8 V. This work provides a new perspective for improving the performance of LRMO in halide-based ASSLBs to achieve high energy density.
研究领域:
材料科学
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电化学
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能源存储
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固态离子学
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先进电池技术
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
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2023
·
IF 9.5
Yanghui Liu,Jian Zhou,Zhangbin Ji,Fengling Zhuo,Shengyu Wen,Yiqin Chen,YongQing Fu,Huigao Duan
Humidity sensing and water molecule monitoring have become hot research topics attributed to their potential applications in monitoring breathing/physiological conditions of humans, air conditioning in greenhouses, and soil moisture in agriculture. However, there is a huge challenge for highly sensitive and precision humidity detection with wireless and fast responsive capabilities. In this work, a hybrid/synergistic strategy was proposed using a LiNbO3/SiO2/SiC heterostructure to generate shear-horizontal (SH) surface acoustic waves (SAWs) and using a nanocomposite of polyethylenimine-silicon dioxide nanoparticles (PEI-SiO2 NPs) to form a sensitive layer, thus achieving an ultrahigh sensitivity of SAW humidity sensors. Ultrahigh frequencies (1∼15 GHz) of SAW devices were obtained on a high-velocity heterostructure of LiNbO3/SiO2/SiC. Among the multimodal wave modes, we selected SH waves for humidity sensing and achieved a high mass-sensitivity of 5383 MHz · mm2 · μg–1. With the PEI-SiO2 NP composite as the sensitive layer, an ultrahigh sensitivity of 2.02 MHz/% RH was obtained, which is two orders of magnitude higher than those of the conventional SAW humidity sensors (∼202.5 MHz frequency) within a humidity range of 20–80% RH.
研究领域:
传感器技术
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材料科学
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电子工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
Journal of Energy Chemistry
·
2019
·
IF 5.162
Xuelei Li,Liubing Jin,Dawei Song,Hongzhou Zhang,Xixi Shi,Zhenyu Wang,Lianqi Zhang,Lingyun Zhu
In order to obtain high power density, energy density and safe energy storage lithium ion batteries (LIB) to meet growing demand for electronic products, oxide cathodes have been widely explored in all-solid-state lithium batteries (ASSLB) using sulfide solid electrolyte. However, the electrochemical performances are still not satisfactory, due to the high interfacial resistance caused by severe interfacial instability between sulfide solid electrolyte and oxide cathode, especially Ni-rich oxide cathodes, in charge-discharge process. Ni-rich LiNi 0.8 Co 0.1 Mn 0.1 O 2 (NCM811) material at present is one of the most key cathode candidates to achieve the high energy density up to 300 Wh kg −1 in liquid LIB, but rarely investigated in ASSLB using sulfide electrolyte. To design the stable interface between NCM811 and sulfide electrolyte should be extremely necessary. In this work, in view of our previous work, LiNbO 3 coating with about 1 wt% content is adopted to improve the interfacial stability and the electrochemical performances of NCM811 cathode in ASSLB using Li 10 GeP 2 S 12 solid electrolyte. Consequently, LiNbO 3 -coated NCM811 cathode displays the higher discharge capacity and rate performance than the reported oxide electrodes in ASSLB using sulfide solid electrolyte to our knowledge.
研究领域:
材料科学
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电化学
·
能源存储
✓ 已验证
产品关联
DOI
高影响因子
CERAMICS INTERNATIONAL
·
2026
·
IF 5.6
Hengli Liu,Xinxin Yang,Xiaofang Zhao,Wei Liu,Huan Li,Lin Li,Yusong Du,Guihua Li,Jin Han,Shuai Cheng,Guanghui Rao,Jingtai Zhao
The elasticoluminescence (EML) performance is significantly influenced by lattice defects and piezoelectric properties, which can be effectively modulated through the incorporation of a certain amount of ferroelectric materials. In this study, a series of novel ferroelectric phosphors Li 0.97 Nb 1- x Ta x O 3 : 0.01Pr 3+ were synthesized via a conventional solid-state reaction method under ambient atmospheric conditions. The defects, piezoelectric properties, and their relationship with optical performance were systematically investigated using X-ray diffraction, X-ray photoelectron spectroscopy, photoluminescence, diffuse reflectance spectroscopy, high-resolution transmission electron microscopy, and dielectric measurements. The incorporation of Ta 5+ ions resulted in a reduction in ferroelectric domain size and an enhancement in dielectric properties, thereby improving piezoelectric performance. Moreover, the introduction of Ta 5+ ions induced the formation of new impurity defects, resulting in an increased concentration of defect complexes. Both the enhanced piezoelectric response and the higher density of defect complexes contribute to the improvement of mechanoluminescence performance. This study can present a viable strategy for the development of advanced mechanoluminescent materials.
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产品关联
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Rui Hao,Chenwei Xiong,Huashan Li,Shaopeng Lin,Siwei Long,Decai Ma,Biao Wang
Manipulating the concentrations of magnesium ions was found to be an effective strategy to tune persistent luminescence in lithium niobite crystals. The photoluminescence excitation and emission spectra indicated that the dopant concentration exhibits a significant regulating effect toward the photoluminescent properties of LiNbO 3 crystals. A series of thermoluminescence experiments revealed that the electron trap depths played a crucial role in persistent luminescence. Computational analysis based on DFT method elucidated the changes of defect structures in co-doped Mg 2+ :Pr 3+ :LiNbO 3 crystals as the doping concentration varies. A dynamic model was proposed to explain the variation of afterglow luminescence intensity with doping concentration.
研究领域:
材料科学
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光学材料
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固体物理
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发光学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）