CERAMICS INTERNATIONAL
·
2023
·
IF 5.2
Qiangqiang Wen,Yuwei Ma,Fenglong Zhang,Han Sun,Weixiang Shang,Qiang Wang,Jinxiao Bao
Herein, we report a kind of structural and functional integrated ceramic material with excellent mechanical and optical properties . A series of Er-doped Zr 6 Nb 2 O 17 ceramic samples were prepared by the high-temperature solid-phase method, which showed reversible photochromism from light curry to dark brown under the alternating action of 365 nm UV light and heat treatment at 350 °C. The photochromic process is fully reversible and has good cyclic stability with a maximum photochromic contrast of 20.1%. The fluorescence modulation behavior based on the photochromic reaction can effectively modulate the emission of Er 3+ , and the maximum fluorescence modulation ratio reaches 62%. The best Vickers hardness and fracture toughness values of the prepared Zr 6 Nb 2 O 17 : Er ceramics reached 15.88 GPa and 4.5 MPa m 1/2 respectively. The mechanisms of the observed photochromism, photoluminescence , and fluorescence modulation were studied systematically. This work is expected to provide significant guidance for the development of high-performance colored ceramic materials and broaden its market application field.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
Nanophotonics
·
2019
·Vol. 8
·期 12
·2215-2223
·
IF 6.908
Er Pan,Gongxun Bai,Yutao Peng,Liang Chen,Shiqing Xu
Ferroelectric oxide nanocrystals, in combination with the robust coupling of an electric field with crystal structure symmetry, makes such systems agreeable to field-induced crystal structural transformation. The luminescent properties of rare earth ions are sensitive to the symmetry of the surrounding crystal field. The luminescence tuning of rare earth ions is an important assignment in the research of luminescent materials. However, the current conditional feasibility and reversibility in the exploration of luminescence modification remain major challenges. In this article, the luminescence modulation of rare earth ions has been developed in Yb 3+ /Er 3+ codoped ferroelectrics glass ceramics containing Bi 4 Ti 3 O 12 nanocrystals through an electric field. The inclusion of nanocrystals in the glass matrix greatly enhances the electrical resistance. Both upconversion and near-infrared emissions of rare earth ions are effectively enhanced more than twice via polarization engineering. The electric field regulates the photonic properties of rare earth ions with excellent reversibility and nonvolatility in ferroelectrics. The effective modification by electric field provides a new scheme for optical storage and optoelectronic devices.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF MATERIALS RESEARCH
·
2024
·Vol. 39
·期 14
·1989-1998
·
IF 2.7
Li Xin,He Yu,Guo Yangyang,Mao Huibing,Chen Ye,Wang Jiqing,Fang Weifeng
With the excitation of a 978 nm laser, upconversion emission of the NaMgF 3 : Tm 3+ , Yb 3+ , Mn 2+ submicron particles include two red emission bands located at 648 and 698 nm and a green emission at about 510 nm in the visible range. The experimental results confirm that the Mn 2+ ions play the key role in the emission modulation between the 648 nm and 698 nm. The incident laser power dependence confirms that the emission at 648 nm is completely different from the emissions at 698 nm, and more than 3 photons are involved in the emission at 648 nm. With the doping of Mn 2+ ions, the intensity ratio R 1 / R 2 of the emission at 648 nm and 698 nm increases first, and decreases for the Mn 2+ concentration larger than 2%. The incident laser power and laser pulse-width also have evident modulation effect of the UC emissions. All the Mn 2+ related phenomena are due to the energy transfer paths ET5 and ET6 between the Tm 3+ and Mn 2+ ions. Graphical abstract
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Anjie Wang,Anjun Huang,Heping Zhao,Yue Liu,Yuxia Luo,Dacheng Zhou,Zhiguo Song,Jianbei Qiu,Cherkasova Tatiana,Zhengwen Yang
Transparent glass is a promising candidate for optical storage media due to its large capacity and high stability advantages. Previously reported optical storage glass systems meet various problems, such as high manufacturing costs, low security levels, etc. Herein, a kind of copper-contained borate glass was designed and fabricated, emitting tunable broadband upon various ultraviolet light excitations. By alternating 360 nm laser (10.7 W/cm 2 ) irradiation for 15 s and thermal treatment at 400 ℃ for 2 h, the emission intensity of the glass can be reversibly regulated, which is associated with the variation of oxidation states of the copper element. Relying on their efficient reversible luminescence modulation behaviors, the potential application of this glass as an optical storage and encryption media is developed, exhibiting the high performances of repeatable writing and erasing, dual mode readout, high-level safety, and good writing resolution for the Cu-doped borate glass.
研究领域:
材料科学
·
光学工程
✓ 已验证
产品关联
DOI
高影响因子
Advanced Physics Research
·
2024
·Vol. 4
·期 2
·2400104
·
IF 0
Hengli Zhu,Jiaping Zhang,Panqin Wang,Shaoxing Lyu,Hengwei Lin,Jiaren Du
Trap-related inorganic photochromic materials coupled with regulated luminescence have attracted extensive interest due to their great potential in optoelectronic devices, optical memory, and multiple anti-counterfeiting applications. Combining photochromism with luminescence modulations enables the light-driven reversible manipulation of optical information in both dark and bright fields. However, photochromism induced luminescence modulation is still restricted to monochromatic visualization with only emission intensity variations. To this end, the limitation of the common single-wavelength modulation is overcome by integrating the matrix (Sr 2 YGaO 5 ) and dopant (Sm 3+ ) emissions mutually together to achieve wavelength variations. Color-changing emission is identified with a large Commission Internationale de L'Eclairage chromatic coordinate difference. The compatible coexistence of matrix/rare-earth emission centers together with abundant photo-active traps contributes to the superior optical integration and matrix-emission-assisted photochromism enables a distinct color variation in dual fields. This work provides a good example of designing one single material with color changeable characteristics in both bright and dark fields.
研究领域:
光学材料
·
无机化学
·
光电子学
✓ 已验证
DOI
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Yu Su,Haitao Xie,Congzhou Li,Zhongjing Xia,Wenheng Xu,Zilong Mao,Guixiang Zhan,Kan Liao,Jiaqi Li,Jinze Li,Junran Zhang,Yao Yin,Lin Wang
2D Ruddlesden-Popper (RP) phase perovskites are promising materials for optoelectronic devices due to their unique properties and environmental stability. In this work, fully electrical, dynamic, and reversible modulation of photoluminescence (PL) intensity in RP-phase perovskite nanosheets at room temperature is achieved for the first time using alternating current (AC) electric fields. A capacitor structure with (PEA) 2 PbI 4 nanosheets and HfO 2 enables significant PL quenching, with the largest modulation amplitude reported to date. The degree of quenching depends on AC field parameters, including amplitude, frequency, waveform, and inter-electrode phase difference. Temperature-dependent measurements and impedance spectroscopy (IS) reveal that the PL quenching originates from an interfacial polarization field formed by AC-driven ionic displacement and directional accumulation, which perturbs exciton recombination. This work provides insights into ion migration and electric field interactions in 2D perovskites. It also establishes an energy-efficient method for tuning optoelectronic properties, offering a practical route for developing adaptive photonic systems and low-power, electrically tunable devices.
研究领域:
材料科学
·
光学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2018
·
IF 3.779
Baochen Wang,Ziyao Wang,Yangai Liu,Tao Yang,Zhaohui Huang,Minghao Fang
Crystal structure tailoring is a commonly used method for tuning the luminescence of phosphors. This study mainly aims at luminescent spectra tuning of Sr 1− x Ba x Al 2 Si 2 O 8 :Eu 2+ phosphors by substitution of Ba for Sr ions. The phase composition was characterized by X-ray powder diffraction and the crystal structure was determined by using the Rietveld refinement method. The excitation and emission spectra, diffuse reflectance spectra, and thermal quenching were also investigated in detail. The results show that Sr 1− x Ba x Al 2 Si 2 O 8 :Eu 2+ phosphors can form a series of continuous solid solutions in the range from 0 to 0.75. With the increase in x value, the emission spectra show an obvious redshift from 415 to 450 nm. The emission redshift plays an important role in enabling Sr 1− x Ba x Al 2 Si 2 O 8 :Eu 2+ to be used as a standard blue phosphor for application in white-light-emitting diodes.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
DALTON TRANSACTIONS
·
2025
·
IF 3.3
Jiamin Liu,Yuntao Ruan,Qiaoqi Qin,Yong Shen,Zhengliang Wang,Daibin Kuang,Long Jiang
Herein, we designed organic cations with multiple donor and acceptor sites of hydrogen bonds and reported reversible luminescence modulation in 0D manganese-based metal halides via water-driven in situ structural transformations with the above adaptive hydrogen-bonding cation. The non-fluorescent-to-fluorescent transition at human body temperature highlights their high sensitivity and environmental adaptability as promising candidates for advanced fluorescence-based sensing and anti-counterfeiting applications. Besides, the high photoluminescence quantum yield and great stability of fluorescent (BBD)MnBr4 provide a way to explore OIHMHs pumped by green light for white LEDs.
研究领域:
材料科学
·
化学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
RSC Advances
·
2016
·Vol. 6
·期 80
·76231-76236
·
IF 3.289
Haijing Jiang,Donglei Zhou,Dan Qu,Guang Chu,Wen Xu,Hongwei Song,Yan Xu
The ability to manipulate the color output of nanomaterials is important for applications like optoelectronic devices, light emitting display and lasers. Here, a self-organized helical superstructure of photonic cellulose loaded with upconversion nanoparticles of NaYF4:Yb,Er has been realized. The modulated upconversion luminescence of the photonic composite film of cellulose-NaYF4:Yb,Er has been demonstrated with the mechanism proposed.
研究领域:
材料科学
·
光学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2022
·
IF 16.744
Wei Tang,Chuandong Zuo,Chaoyang Ma,Yuzhen Wang,Yingkui Li,Xuanyi Yuan,Enge Wang,Zicheng Wen,Yongge Cao
Inorganic photochromic materials have been identified as attractive possibilities in many photonic applications due to their outstanding thermal stability and eminent fatigue resistance. However, the relatively low photochromic contrast of inorganic photochromic materials restricts their further development. A novel method for achieving high photochromic performance is presented in this paper through volatilization element selection, high temperature sintered and low-valence ion doping. The obtained Ba(Zr 0.16 Mg 0.28 Ta 0.56 )O 3 ceramics exhibits an ultra-high photochromic contrast of 62.1% with a fast response time of 3 s upon alternate 365 nm illumination and 350 °C thermal stimulus (or 450 nm illumination), which presents the best performance among the inorganic photochromic materials. Benefiting from these excellent properties, Ba(Zr 0.16 Mg 0.28 Ta 0.56 )O 3 is the pioneer inorganic photochromic ceramics to support real-time handwriting and photobleaching information display. Moreover, due to the perfect overlap between the absorption band of Ba(Zr 0.16 Mg 0.28 Ta 0.56 )O 3 :0.05%Pr 3+ after 365 nm illumination and the excitation/emission peak of Pr 3+ , a large luminescence modulation of 92.5% is achieved, which reveals the great potential of Ba(Zr 0.16 Mg 0.28 Ta 0.56 )O 3 :0.05%Pr 3+ in dual-mode optical information storage. This work is expected to provide a significant guidance for the design of high performance inorganic photochromic materials and promote the applications in optical information storage.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2015
·Vol. 39
·期 5
·4154-4161
·
IF 3.086
Lei Chen,Bing Yan
A series of novel multi-component photofunctional hybrid materials were assembled using lanthanide (Ln) polyoxometalates (Na9LnW10O36·32H2O, for LnW10, Ln = europium (Eu), terbium (Tb), samarium (Sm) or dysprosium (Dy)), ionic liquids (IMCl) and functionalized zeolite A/L through an inside–outside double modification path. Firstly, the zeolite A/L was functionalized with Ln complexes (Eu-thenoyltrifluoroacetone (TTA) or Tb-trifluoroacetylacetone (TAA)) using the ion-exchange treatment and “ships in a bottle” dispersion. Then, 1-methyl-3-(trimethoxysilyl)propyl chloride (IM+Cl−) was covalently grafted onto the functionalized zeolite A/L and linked to Ln polyoxometalates as a double linker. These hybrids have two luminescence centers, one is Ln complexes, and the other is Ln polyoxometalates. By adjusting the different components of the hybrids, the luminescent tuning and integration of various colors (white, warm-white, green and red light) can be realized. These results can be expected to have potential application in appropriate fields.
研究领域:
材料科学
·
化学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
Advanced Optical Materials
·
2024
·
IF 8
Rongyi Kuang,Huiwang Lian,Yunfei Zhu,Simin Gu,Lin Huang,Bo-Mei Liu,Jing Wang
Inorganic photochromic luminescent materials hold immense promise as potential candidates for optical information storage applications. Unfortunately, static and single reading mode of photochromic luminescent materials in bright and dark environments pose a security threat to the stored information. Here, a novel material La 2 MgSnO 6 :Er 3+ ,Fe 3+ is developed, possessing both reversible photochromic and adjustable upconversion/downconversion photoluminescent (PL) properties. Upon exposure to 275 nm ultraviolet (UV) light, the sample changes in color from white to brown. And this transformation rapidly reverses when exposed to 365 nm UV light, resulting in a corresponding alteration in luminescence intensity. Notably, when combined with photochromic, the 980 nm excited upconversion PL maintains stable luminescence, while the 365 nm excited downconversion PL exhibits significant intensity changes. Inspired by this unique feature, a dark-field selective dual-mode reading is proposed that depends on the excitation wavelength, including static decrypt in long-time cases and dynamic reading in time-limited situations. These findings have the potential to revolutionize high-security data storage applications and drive advancements in the field.
研究领域:
材料科学
·
光电技术
·
信息技术
·
光子学
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）