JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
·
2026
·Vol. 46
·期 9
·118221
·
IF 6.3
Xingyu Qi,Yuelong Ma,Yimo Zhao,Tao Pang,Shisheng Lin,Lili Lu,Guoxing Jiang,Dongbin Xue,Guilu Wang,Daqin Chen
Addressing thermal management and color quality challenges in solid-state lighting, this work pioneers a color-converter based on patterned phosphor-in-glass film (PiGF) sintered on a YAG:Ce transparent ceramic (TC). The composite alternating β-SiAlON:Eu and (Sr,Ca)AlSiN 3 :Eu PiGF striped on YAG:Ce TC exhibited exceptional photothermal performance: thermal conductivity reached 8.32 W/(m·K) and only 11.6 % luminescence intensity loss at 150 °C. Under a 450 nm LD excitation with the laser spot size of 850 μm, beam expansion ratios were 24 % for the YAG:0.35 at%Ce, and 84.11 % for the green-red PiGF (2:1 ratio). Combined with a 60 W blue LED chip, the color-converter realized a nature-white-light emission with LF of 3705 lm, CCT of 3852 K, and CRI of 91, respectively. By combining the converter with a 12 W blue LD, the obtained LE, CRI and CCT were 163 lm/W, 90.1 and 5092 K, respectively. The composite shows great promise as a novel color-converter for high-power LED/LD lighting applications.
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 7.8
Khalid Mehmood,Iram Arif,Ke Wang,Qiang Ma,Guo-hui Gao,Ling Yin,Quanquan Yang,Yu-xiang Zhao,Tao Zhang
The development of sustainable energy technologies requires green synthetic routes to produce robust proton exchange membranes (PEMs). We report the blue-LED-driven photocatalytic synthesis of large-area, two-dimensional imine-linked benzobisazole-based polymer membranes, followed by post-addition of zwitterions (ZA@IO-2DP, ZA@IS-2DP, ZA@II-2DP) that exhibit excellent mechanical properties and are durable proton conductors. The membranes exhibit proton conductivities of 6.11 × 10–4, 1.05 × 10–3, and 2.04 × 10–3 S/cm at 80 °C (98% RH) for ZA@IO-2DP, ZA@IS-2DP, and ZA@II-2DP, respectively, showing an increasing trend governed by the intrinsic proton affinity caused by the structural motif of the sulfonated benzobisazole-based moieties in a humid environment, where water-mediated transport complements the intrinsic benzobisazole-based pathways via the Grotthuss mechanism. The outstanding performance of ZA@II-2DP stems from its dual donor–acceptor nitrogen sites, forming an effective interface that facilitates hydrated proton-conduction pathways. Overall, this green, scalable synthesis pathway yields 2D polymer membranes with tunable proton-conducting interfaces, paving the way for next-generation sustainable energy devices.
✓ 已验证
DOI
PubMed
高影响因子
CERAMICS INTERNATIONAL
·
2025
·
IF 5.6
Yiwen Wu,Baolin Guo,Xiaokang Li,Qing Yao
Warm white light-emitting diodes (WLEDs) with a high special color rendering index (R14) are indispensable in plant growth applications. They not only provide the orange light component required for chlorophyll to carry out photosynthesis, but also enhance the detection of leaf abnormalities by accurately restoring the green color of the leaves. To address the limitations of traditional phosphor materials in high-power LED devices, a high R14 temperature white glass phosphor (PiG) was fabricated. Uniform and dense PiG samples were prepared by optimizing the ratio of glass to phosphor (GtP) and using an environmentally friendly epoxy resin system. XRD and SEM characterization confirmed the uniform distribution of YAGG:Ce and GdYAG:Ce phosphors in the glass matrix. Rheological analysis confirmed that gel casting could obtain slurries with high solid load and low viscosity. This guaranteed the preparation of uniform and dense PiGs. It also had excellent thermal stability and optical performance. Under the excitation of the LED with a specification of 50W, the maximum operating temperature of the PiG within 30 min was 138.7 °C. From the tenth minute on, the surface temperature of PiG reached a dynamic equilibrium and was basically maintained at around 135 °C. PiG with adjustable color temperature (3184- 4005k) could be produced by using green phosphor YAGG:Ce and orange phosphor GdYAG:Ce. Low color temperature and high R14 value were of great significance for plant photosynthesis and rapid diagnosis of plants. The comparative experiment confirmed this view. The average SPAD value of lettuce under the irradiation of warm white LED was 29.1, which was higher than that of 25.7 under natural light.
✓ 已验证
DOI
高影响因子
Environmental Technology & Innovation
·
2025
·
IF 7.1
Jing Wang,Siyu Zhang,Lidong Kou,Kunzhen He,Qingyuan Li,Chaojun Wu,Xing Xing,Yanjin Wang
NaBiO 3 is a low-cost photocatalyst with good performance for organic removal. Oxygen vacancies (OVs) play crucial roles in mediating oxygen activation and electron-hole separation during visible light-driven photocatalysis. In this study, Mn ions were doped into the commercial NaBiO 3 by a facile in-situ technique to construct OVs for enhancing sulfamethazine (SMT) removal. By doping 0.001–0.01 mmol of Mn 2 + ions, abundant OVs were formed on the initial NaBiO 3 surface, endowing the as-prepared BiMn x composites (e.g. BiMn 0.001 ) with a fast kinetic (first-order rate constant k 0.68 h −1 ) and a high efficiency (>99 % within 6 h) for SMT degradation. Excellent removal of SMT could be attained across a broad pH range (i.e. pH 0 5–9) using BiMn 0.001 as the photocatalyst, which could harvest full-spectrum LED white light and showed anti-interference to common water co-existent constituents. Increasing solution temperature was also beneficial for SMT removal. Reactive species including 1 O 2 , holes and electrons played dominant roles for SMT removal. Based on HPLC-MS, the degradation intermediates were identified, and a degradation pathway for SMT was formulated in the BiMn x /LED system. The results may shed some light for constructing OVs on catalyst surfaces and preparing LED visible light-responsive photocatalysts for antibiotic removal.
研究领域:
环境科学
·
材料化学
·
催化化学
✓ 已验证
产品关联
DOI
高影响因子
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
·
2022
·Vol. 129
·期 1
·69
·
IF 2.983
Deng Kaiyuan,Zhang Ruiting,Jin Yahong,Yuan Lifang,Wu Haoyi,Hu Yihua
A series of Mn 2+ -doped solid Zn 3 Ga 2 GeO 8 materials with far-red broad-band emissions is prepared as promising candidates for light emitting diodes (LEDs) for application in indoor plant cultivation. Phosphor exhibits broad far-red emissions, ranging from 600 to 1100 nm which overlap with the absorption range of the phytochrome ( \(P_{fr}\) ). In addition, the co-doping with Ca 2+ contributes a 1.57-fold increase in the far-red-emission intensity at room temperature. Encapsulating phosphor onto ultraviolet LED chips yields far-red-emitting LED devices, which can be promising candidates for promoting indoor plant cultivation.
✓ 已验证
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2026
·
IF 8.2
Duanliang Wang,Qiwei Xing,Zhengao Xie,Xunwang Yan,Chuanrui Zhu,Bingbing Zhang,Xiaowu Lei,Chuanying Shen
Tunable multicolor luminescent materials are of great significance in boosting the security of information encryption. Herein, one-dimensional (1D) (4-AMP)2Cd3Cl10·4(H2O) (4-AMP = 4-(aminomethyl)pyridine) new crystals, with a broadband blue emission, were successfully grown by the solution method. A notably large birefringence of 0.158@546 nm and a short ultraviolet (UV) absorption cutoff edge of about 264 nm were determined, indicating a promising application as a UV birefringent material. The Mn2+-doping strategy was adopted to modulate its photoluminescence properties, and a series of (4-AMP)2Cd3Cl10·4(H2O):xMn2+ (x = 10%, 20%, and 40%) with tunable multicolor emission were synthesized. Strikingly, (4-AMP)2Cd3Cl10·4(H2O):10%Mn2+ also exhibited a photoexcitation-induced tunable blue and red dual-color luminescence. Remarkably, (4-AMP)2Cd3Cl10·4(H2O):40%Mn2+ demonstrates a bright red emission at 632 nm, achieving a high PLQY of 73.06%. Combined experimental and theoretical investigations reveal that the red luminescence originates from 4T1(G)→6A1(S) of Mn2+, and the blue emission is principally attributed to organic units. Furthermore, LED devices and multifarious anticounterfeit encryption models were fabricated and designed to explore their applications. This work not only presents a novel UV-birefringent crystal to achieve tunable dual-color luminescence via dopant engineering but also provides a fresh mindset to expand their optoelectronic applications.
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ACS Applied Materials & Interfaces
·
2018
·
IF 8.097
Shiliang Mei,Xiaoyan Liu,Wanlu Zhang,Ran Liu,Lirong Zheng,Ruiqian Guo,Pengfei Tian
This work proposes a high-bandwidth white-light system consisting of a blue gallium nitride (GaN) micro-LED (μLED) exciting yellow-emitting CsPbBr1.8I1.2 perovskite quantum dots (YQDs) for high-speed real-time visible light communication (VLC). The packaged 80 μm × 80 μm blue-emitting μLED has a modulation bandwidth of ∼160 MHz and a peak emission wavelength of ∼445 nm. The achievable bandwidth of the white-light system is up to 85 MHz in the absence of filters and equalization technology. Meanwhile, the bandwidth of the YQDs as a color converter is as high as 73 MHz with the blue GaN μLED as the pump source. A maximum data rate of 300 Mbps can be achieved by taking advantage of the high bandwidth of the white-light system using the non-return-to-zero on–off keying (NRZ-OOK) modulation scheme. The resultant bit-error rate is 2.0 × 10–3, well beneath the forward error correction criterion of 3.8 × 10–3 required for error-free data transmission. In addition, the YQDs which we proposed as a color converter possess high stability for VLC. After half a year, the achievable bandwidths of the white-light system and the YQDs are still up to 83 and 70 MHz, respectively. This study provides the direction of developing high-bandwidth white-light system for both high-efficiency solid-state lighting and high-speed VLC.
研究领域:
光学
·
通信工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
SEPARATION AND PURIFICATION TECHNOLOGY
·
2021
·
IF 7.312
Jie Wang,Haibao Liu,Yan Wang,Defang Ma,Guangping Yao,Qinyan Yue,Baoyu Gao,Xing Xu
The newly emerged ultraviolet light-emitting diode (UV-LED) as a new UV source may replace the conventional UV lamps for water treatment in the foreseeable future. In this study, UV-LED with four wavelengths (i.e., 255, 265, 280, and 310 nm) was used to investigate the wavelength-dependency of UV-LED/O 3 process on the radical/non-radical formation and hexazinone degradation. The degradation of hexazinone in UV-LED/O 3 process with different wavelengths (31.1–97.4%) was higher than that of O 3 oxidation process alone (20.0%), and the hexazinone removal rate at 280 nm was the highest (97.4%). The fluence-based rate constant of hexazinone degradation in UV-LED/O 3 process (0.19–2.97 × 10 −5 m 2 ·J −1 ) was higher than that in low-pressure UV/O 3 (LPUV/O 3 ) process (0.15 × 10 −5 m 2 ·J −1 ). Hydroxyl radical (·OH) and superoxide radicals (O 2 − ) were the dominant active species in UV-LED/O 3 process, and the single oxygen ( 1 O 2 ) was also beneficial to the degradation of hexazinone. The possible degradation pathways were proposed based on high resolution mass spectrum (MS). The reaction sites of free radicals were further predicted by density functional theory (DFT) calculations. Besides, the Toxicity Estimation Software Tool (T.E.S.T.) and Vibrio fischeri were used to estimate the potential toxicity of hexazinone and intermediates and it was suggested that alkaline environment and sufficient oxidation time were conductive to reducing the toxicity of wastewater.
研究领域:
环境科学
·
水处理工程
·
化学工程
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2022
·
IF 4.171
Yiying Li,Wenwu You,Jun Zhao,Xiaomin Zhang,Gencai Pan,Yanli Mao
In this work, Al 2 W 3 O 12 :1%Cr 3+ ,2%Eu 3+ with two discriminable dual emissive centers is synthesized. Both Eu 3+ and Cr 3+ ions can be excited efficiently by 465 nm. Photoluminescence excitation (PLE) spectra and photoluminescence (PL) lifetime indicate that there is no energy transfer (ET) between Eu 3+ and Cr 3+ ions. It is worth noting that the photothermal stability of Eu 3+ ions is much better than that of Cr 3+ ions. Specifically, the ratio of I Cr /I Eu decreases linearly with increasing temperature. Therefore, a blue-LED-excitable luminescent thermometer based on Cr 3+ /Eu 3+ co-doped Al 2 W 3 O 12 is proposed. This developed self-calibrated luminescent temperature sensor possesses the relatively high absolute and relative sensitivity (0.38 K -1 and 2.9% K −1 respectively) as well as good cycle stability among the previously reported TM/Ln-based luminescent; thermometers. These superior features of the developed self-calibrated luminescent thermometer (SCLT) make it a very promising candidate for temperature sensing applications.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2022
·
IF 6.371
Yi Zhang,Cuiping Zhou,Jingwei Li,Jing Dong,Shuai Weng,Pengfei Yin,Xiyuan Sun,Jian Wang,Zhiwei Lu,Hanbing Rao
Herein, a novel Ba 2 SrWO 6 :Mn 4+ , La 3+ (BSW:Mn 4+ , La 3+ ) far-red phosphor was obtained by an addition strategy of La ion to negligible-luminescence BSW:Mn. Deep-red emission peaks at ∼ 664, 679 and 690 nm were observed for BSW:Mn 4+ , La 3+ with the excitation band in the 250 ∼ 600 nm spectral range, which are well matched to the absorption of chlorophyll and phytochromes. An impressive nanorod surface micro-morphology was observed in BSW samples and the size of the surface-grown nanorods can be changed by the addition of La ions. It was speculated that the generation of oxygen vacancies in BSW:Mn probably causes the self-reduction process of Mn 4+ → Mn 2+ , and a charge replenishment mechanism was proposed to explain the abnormal luminescence of Mn 4+ ions. The BSW:0.5%Mn, 5%La phosphor showed a CIE chromaticity coordinate of (0.724, 0.276) with a high color purity of 100%. In addition, the internal and external quantum efficiency of BSW:0.5%Mn, 5%La phosphor reach as high as 51.9% and 39.5%, respectively. Finally, LED devices were fabricated by using the as-prepared BSW:0.5%Mn, 5%La phosphor and applied in the illumination on tomato seeds. It shows that the LED devices can promote the seeding of tomatoes effectively, indicating a potential application value in the plant cultivation field.
研究领域:
材料科学
·
农业科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2024
·
IF 5.8
Lanjiao Li,Ying Chen,Rongfei Wei,Siyu Guo,Xiangling Tian,Fangfang Hu,Hai Guo
Near-infrared phosphor-converted light-emitting diodes (NIR pc-LEDs) are playing an increasingly important role in the spectroscopy technology fields. Developing high-performance NIR-emitting phosphors is of immense significance for advancing NIR pc-LEDs. Herein, the approach of cationic substitution of Ca 2+ by Mg 2+ was designed in Ca 4 ZrGe 3 O 12 :Cr 3+ . Remarkably enhanced NIR emission and strikingly improved thermal stability are realized. The luminescence intensity at 423 K compared with that of room temperature ascends from 45.67 % to 72.81 %. Moreover, the representative sample was assembled to a NIR pc-LED with favorable output power and photoelectric conversion efficiency by combining a commercial 470 nm blue chip. The packaged LED demonstrates the feasibility of practical applications in night vision, biological imaging, and fruit detection. The above findings verify the potential prospect of Ca 4- x Mg x ZrGe 3 O 12 :Cr 3+ phosphor for the utilizations in NIR light sources.
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
INORGANIC CHEMISTRY COMMUNICATIONS
·
2020
·
IF 1.943
Xiangjia Meng,Shuai Huang,Mengmeng Shang
Red-emitting phosphors have attracted considerable interest for their applications in warm white light-emitting diodes (LEDs). A series of novel red emitting Eu 3+ -doped Ba 2 GdVO 6 phosphors were prepared by a solid-state reaction annealed at 1300 °C for 6 h. Under the excitation of blue light (465 nm), Ba 2 GdVO 6 :Eu 3+ phosphors emit pure red light. The critical distance at which concentration occurs is determined to be 8.7 Å when the doping concentration reached up to 20 mol%. More importantly, the as-prepared Ba 2 GdVO 6 :20%Eu 3+ phosphor exhibit good thermal stability. The PL intensity at 150 °C remains 72% of its initial intensity at room temperature. The preliminary studies show that the Ba 2 GdVO 6 :Eu 3+ might be a promising red material for application in blue light converted warm white LED.
研究领域:
材料科学
·
光学工程
✓ 已验证
DOI
高影响因子
危险品化学品经营许可证（带存储）