Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 32
·12451-12457
·
IF 5.7
Chaowei Yang,Xikun Zou,Mengqi Lyu,Mingkai Wei,Ziyi Wang,Xiaoyu Shuang,Xuejie Zhang,Bin Dong,Xinming Li,Yan Cong,Mingtao Zheng,Maxim S. Molokeev,Bingfu Lei
Far-red light plays a crucial role in plant growth, development, and flowering as a light signal. However, efficiently obtaining far-red light that well-matches the plant-photosensitive pigment Pfr remains a significant challenge in indoor agriculture. In this study, a far-red phosphor, BaGd2Al2Ga2GeO12:Cr3+(BGAGG:Cr3+), was successfully synthesized, using a high-temperature solid-phase method. Under 450 nm excitation, its emission maximum is at 712 nm with a full width at half maximum (FWHM) of 92 nm, which well-matches with Pfr. Combined with a blue LED chip, this phosphor was used to create a pc-LED device for bok choy and Micro-Tom cultivation experiments. Under the irradiation of far-red light, the biomass of bok choy increased by 39%, and the flowering and fruiting of Micro-Tom was promoted, demonstrating its potential in plant lighting applications.
研究领域:
植物学
·
材料科学
·
农业科学
✓ 已验证
DOI
高影响因子
LUMINESCENCE
·
2022
·Vol. 37
·期 11
·1873-1880
·
IF 2.613
Ping Yang,Wei Sun,Zikuan Zhang,Honglong Xing
As a type of nonmetals fluorescent reagent, the described chlorine phenol–formaldehyde resin (Cl–PFR) nanoparticles (NPs) were synthesized using a facile method. The as-synthesized Cl–PFR NPs can emit strong green fluorescence emission under 365 nm ultraviolet (UV) light irradiation. As mesoporous silica (MSN) NPs have a large specific area, strong adsorption, and uniform dispersion, MSN-coated Cl–PFR composites were prepared by mixing Cl–PFR and MSN NPs together. The as-synthesized multifunctional composites combining the advantages of the green fluorescence of Cl–PFR, and the strong adhesion of MSN was applied to detect potential fingerprints. Different base fingerprints (glass, paper, aluminium sheets, rough stones, tape) could be clearly observed in the presence of the Cl–PFR@MSN–NH 2 composites. Furthermore, fingerprints that had been aged for 3 months and washed with water several times could also be clearly displayed using the multifunctional composites. This study provided a simple, economical, and nontoxic fluorescent reagent for application in fingerprint detection.
研究领域:
材料科学
·
法医学
✓ 已验证
DOI
高影响因子
JOURNAL OF LUMINESCENCE
·
2023
·
IF 3.6
Chunyan Zhou,Hua Fan,Jinling Huang,Shu Li,Yaoyao Huang,Meiping Huang,Yin Huang,Xinjing Guo,Liya Zhou
Broad red emitting phosphors are essential for the growth of indoor plants. Previous Mn 4+ -activated far-red phosphors typically displayed narrow emission, which could not well overlap with plant pigment absorption. A high temperature solid state technique was used to create the unique double perovskite LaGeSbO 6 :Mn 4+ phosphor with an emission peak centered at 700 nm and an impressive full width at half maximum (FWHM) of 100 nm. The origin of ultra-broadband emission of LGS:Mn 4+ phosphors was confirmed by crystal structure and time-resolved spectra owing to the occupation of the two octahedral [SbO 6 ] and [GeO 6 ] centers by the Mn 4+ ion. The quenching mechanism is brought about by the dipole-dipole interaction. The broadband emission is substantially broader than that of other Mn 4+ -activated red emitting phosphors previously described. Besides, the emission spectrum of LaGeSbO 6 :0.4%Mn 4+ matches well with the phytochrome P FR absorption band for plant development. All of the findings suggested that the novel LaGeSbO 6 :Mn 4+ phosphor could be potentially used in light-emitting diodes for indoor plant culture.
研究领域:
园艺学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Ming Ma,Jiale Zhang,Wenjun Zhang,Ying Gao,Dan Wang,Zihan Chen
Plants have a limited ability to absorb green light. Additionally, the energy distribution of sunlight in the deep-red region is weak. These factors restrict the efficiency of plant growth and limit yield improvements. In this study, a novel deep-red phosphor material, KAl₁₁O₁₇: Cr³⁺, was designed and synthesized through a high-temperature solid-state method. This material exhibits deep-red light emission at a central wavelength of 697 nm under broadband excitation at 430 nm (near-ultraviolet) and 562 nm (green light). By leveraging a "light-cutting" mechanism, the phosphor converts underutilized green light into far-red light, which strongly aligns with the absorption peak of the plant photoreceptor P FR state. When applied as a thin-film coating, the material significantly enhances lettuce growth under controlled green-light irradiation. These findings demonstrate the potential of KAl₁₁O₁₇: Cr³⁺ in optimizing spectral distribution for energy-efficient agricultural lighting systems.
研究领域:
植物科学
·
材料科学
·
光学工程
·
农业科技
·
光生物学
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF ALLOYS AND COMPOUNDS
·
2025
·
IF 6.3
Chunli Peng,Baoling Tang,Mingkai Wei,Xuejie Zhang,Maxim S. Molokeev,Haoran Zhang,Bingfu Lei
Cr 3+ -doped phosphors still suffer from limitations, such as low quantum efficiency, poor thermal stability, and spectral peak mismatch, restricting their application in pc-LEDs for indoor agriculture. In this study, cation Sc substitution strategy was applied in Y 3 Ga 5 O 12 . Given that the emission location, an efficient far-red (FR) phosphor Y 3 ScGa 4 O 12 :Cr 3+ (YSGO:Cr 3+ ) with high matching to phytochrome was constructed, under 442 nm excitation, realizing FR emission (728 nm) with FWHM 99 nm. The optimized phosphor demonstrates exceptionally high internal quantum efficiency of 95.4 % and excellent thermal quenching property (91.6 %@423 K). Furthermore, a fabricated phosphor-converted light-emitting diode (pc-LED), combining YSGO:0.07 Cr 3+ with a 450 nm chip, delivers FR output power of 36.74 mW with a photoelectric conversion efficiency (PCE) of 12.8 % at 100 mA, demonstrating ultra-low quenching rate (<5 % intensity loss after 3 months operation). A supplemental lighting model for lettuce growth was constructed, which significantly improves in physiological parameters, confirming the great potential of this phosphor for plant lighting applications.
✓ 已验证
产品关联
DOI
高影响因子
JOURNAL OF APPLIED POLYMER SCIENCE
·
2021
·Vol. 138
·期 34
·50854
·
IF 3.125
Xiangfei Sun,Ping Yang,Shaohua Wang,Honglong Xing
Because of the good fluorescence of zinc phthalocyanine-phenolic resin (ZnPc-PFR) photosensitizer and large specific surface area of mesoporous silica nanoparticles (MSNs), a highly efficient nano-drug carrier system, denoted as ZnPc-PFR@MSN, was constructed for photothermal therapy (PTT) and pH-sensitive drug delivery. The facile hydrothermal reaction was used to synthesize ZnPc-PFR nanoparticles in one-step. After loading the as-synthesized ZnPc-PFR nanoparticles into MSNs, and a good high drug-loading rate (143.7 mg g −1 ) to the anticancer drug of Adriamycin (DOX) could be obtained. Thus, a novel nanosphere with the merits of good fluorescence, high drug-loading rate (143.7 mg g −1 ), better sustained-release properties, and photothermal properties (reached 43.23°C within 260 s) was prepared. The as-synthesized multifunctional composites make it a good candidate in fluorescence imaging, PTT, and drug delivery.
研究领域:
生物医学工程
·
纳米医学
·
肿瘤学
✓ 已验证
DOI
高影响因子
JOURNAL OF RARE EARTHS
·
2025
·
IF 7.2
Jianhua Liu,Jiarui Duan,Deyin Wang,Yuhua Wang
Phytochrome Pr and Pfr are essential for plant growth and photosynthesis, primarily absorbing deep red light at 660 nm and near-infrared (NIR) light at 730 nm. This paper is dedicated to enhance the efficiency of deep red to NIR light emission in BaLu 2– x SiAl 4– y O 12 (BLSA): x Ce 3+ , y Cr 3+ through an energy transfer strategy designed to promote plant growth and improve night vision. It is found that sample doped solely with Cr 3+ can emit deep red to NIR emission in BLSA; however, the spin-forbidden nature of the Cr 3+ 3d→3d transition leads to low luminescence efficiency. On the contrary, in Ce 3+ -doped BLSA, Ce 3+ ions efficiently absorb blue light and emit intense green light, which overlaps the wavelength range of Cr 3+ absorption spectrum. This spectral overlap promotes the energy transfer from Ce 3+ to Cr 3+ , thereby enhancing the deep red to NIR emission of Cr 3+ . This enhancement is evidenced by the external quantum efficiency of Cr 3+ emission, which is 12.5% in the sample doped solely with Cr 3+ and is increased to 48.6% when co-doped with Ce 3+ ions. The energy transfer mechanism between Ce 3+ and Cr 3+ is found to primarily involve dipole-dipole interactions, as described by Dexter's formula and multipole interaction modeling. In addition, by using BLSA:0.1Ce 3+ ,0.03Cr 3+ phosphor to fabricate NIR lighting devices, it is found that the emission spectra are highly matched with the absorption spectra of the phytochromes Pr and Pfr, demonstrating its great potential for application in indoor plant growth lighting. Moreover, the lighting source system is adaptable for various scenarios such as night vision and non-invasive bio-imaging, showcasing its promising versatility for application.
研究领域:
植物学
·
光学材料
·
植物生理学
·
光子学
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
RSC Advances
·
2024
·Vol. 14
·期 22
·15647-15655
·
IF 3.9
Ping Yang,Tingfei Shi,Zhiyuan Liu,Siying Wu,Yuqi Cheng,Kuiliang Li,Hong Zhao
A reversible two-channel fluorescent nanocomposite with fluorescence resonance energy transfer (FRET) effect was designed for the development, analysis, and characterization of latent fingerprints (LFPs). For the construction of the FRET probe, a core of mesoporous silicas (MSNs) were used to encapsulate the organic dye rhodamine 6G (RhD-6) as an acceptor, while green-emitting monodisperse phenolic resin nanoparticles (PFR NPs) were selected as a donor. The up-conversion material (UC) of NaYF4:Yb,Er was synthesized using a simple hydrothermal method, and the MSNs-RhD-6/PFR (PRM) was electrostatically adsorbed onto the UC nanoparticles using a layer-by-layer method to obtain MSNs-RhD-6/PFR-UC (PMU). Compared to ordinary single-channel materials, PMU can be excited by different light sources (365 nm UV/980 nm laser) and its fluorescence can be reversibly switched between yellow and green, demonstrating excellent light reversibility. The PMU composites were successfully used to visualize and detect LFPs on various substrate surfaces using a simple powder coating method. Due to the existing FRET effect and dual-channel characteristics, this composite material displays excellent contrast, outperforming commercially available products for wider applicability. Even on complex backgrounds and after aging or washing treatments, it still clearly recognizes fingerprints in first-, second-, and third-level details, showing its great potential in latent fingerprint detection.
研究领域:
材料科学
·
法医学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
TRIBOLOGY INTERNATIONAL
·
2026
·
IF 7.6
Chen Lin,Wenrui Liang,Chenyu Liu,Jinlong Huang,Yaowei He,Jiabin Lu
To address the low material removal rate (MRR) and low abrasive utilization of free abrasives as well as severe surface damage in fixed abrasive polishing, this paper proposes a pore-confined free abrasive (PC-FA) polishing disc based on Diamond@phenol-formaldehyde resin (PFR) composite abrasives for single-crystal SiC. In ethanol slurry, the PFR shell of composite abrasives dissolves selectively, confining the inner diamond cores within in-situ generated pores to act as dynamic free abrasives for high-quality, low-damage precision machining. Diamond@PFR abrasives were synthesized by solution suspension and characterized via SEM, XRD and LPSA. Three polishing discs (fixed diamond, fixed composite, PC-FA) were fabricated for comparative polishing tests. The PC-FA polishing disc achieved an MRR of 1.07 μm·h −1 and an Sa of 1.38 nm, reduced the surface roughness by 54.6% and 48.1% compared with the two fixed abrasive polishing discs. ABAQUS simulations combined with friction tests clarify the removal mechanism. Fixed abrasives bear rigid constraints, causing concentrated contact stress, deep straight scratches and two-body wear. Pore-confined diamonds move randomly with multiple degrees of freedom, thereby homogenizing stress and generating shallow and sparse scratches, as reflected by a reduced Rku value and an elevated Rsm value, with flexible three-body wear dominating material removal. This disc realizes in-situ fixed-to-free abrasive transition, achieving moderate material removal with high-quality and low-damage machining, and offers a new route for processing third-generation semiconductor substrates.
✓ 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）