Laser & Photonics Reviews
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2025
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IF 10
Haijie Guo,Lili Liu,Lei Wang,Qiufeng Shi,Jianwei Qiao,Cai'e Cui,Ping Huang,Yuhua Wang
Optical information storage technology offers several advantages, including cost-effectiveness, multidimensional storage, and rewritable capability. Consequently, it has become increasingly popular for optical storage media. Herein, a novel optical information storage material Na 2 CaGe 2 O 6 :Bi 3+ (NCGO:Bi 3+ ) is developed using a non-equivalent substitution strategy, which exhibits photochromic (PC) and ultraviolet persistent luminescence (UV PersL) properties. NCGO:Bi 3+ demonstrates excellent white-to-brown PC performance under 254 nm light irradiation. The brown phosphor can be effectively bleached using 425 nm light or thermal stimulation, demonstrating excellent reversibility over multiple cycles. Additionally, the phosphor displays UV PersL characteristics. The representative sample NCGO:0.001Bi 3+ with a duration time exceeding 10 h after 254 nm light excitation, peaking at 358 nm. Simultaneously, due to the electrons captured by deep traps can be released via low-energy light excitation, the sample also exhibits photostimulated PersL characteristics. Specifically, oxygen vacancies (V O ) are identified the primarily responsible for the observed PC and PersL phenomena by X-ray photoelectron spectroscopy (XPS) and electron paramagnetic resonance (EPR) analyses. Overall, this work indicates that the combination of 254 nm light-induced PC and PersL in a single material has potential for designing advanced luminescent materials for the application of optical information storage.
研究领域:
材料科学
·
光学
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DOI
高影响因子
Advanced Optical Materials
·
2025
·Vol. 13
·期 6
·2402515
·
IF 7.2
Ruichen Xu,Biao Zheng,Xiaochen Fang,Xiaolong Sun,Jinquan Hong,Hai Huang,Weiguo Wang,Jun Wang
Multifunctional optical materials with temperature sensing and anti-counterfeiting properties play an essential role in the commercial applications. Herein, Mn 2+ /Nd 3+ co-doped Cs 2 AgInCl 6 (CAIC) lead-free double perovskites (DPs) is synthesized through a hydrothermal method, which exhibits visible to near-infrared (NIR) luminescence and reversible photochromic properties from yellowish to dark purple. The mechanism investigations on the photoluminescence and photochromic phenomena reveal that the incorporation of Mn 2+ ions not only acts as an intermediary in the energy transfer process from the host exciton to Nd 3+ ions, but also plays a pivotal role in the reversible photochromic response. The temperature-dependent luminescence, attributed to the contrasting thermal responses of Mn 2+ and Nd 3+ ions, enables precise temperature sensing via the fluorescence intensity ratio method. In addition, the integration of visible red emission, NIR luminescence, and photochromic properties in a single CAIC: Mn 2+ /Nd 3+ DPs, offers a multilevel anti-counterfeiting strategy. The multifunctional CAIC: Mn 2+ /Nd 3+ DPs would open up new avenues for advanced optical applications, particularly in the realms of temperature sensing and security anti-counterfeiting.
研究领域:
材料科学
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光学工程
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DOI
高影响因子
SusMat
·
2025
·
IF 21.3
Junze Zhang,Xinlong Liu,Tiandi Chen,Jing Han,Taosif Ahmed,Xin Wang,Qian Wang,Cuiqin Fang,Bingang Xu
Advanced photochromic wearables have aroused growing research interest in customizable pattern display, information security encryption, and intelligent fabrics. Molybdenum trioxide (MoO 3 ), distinguished by its superior photochromic capabilities, has emerged as a prime contender for photochromic wearables among several photochromic materials. However, the advancement of rewritable wearables with MoO 3 is constrained by inadequate adhesion, insufficient stability, and limited scalability. Herein, a fiber-based photochromic wearable is designed and developed by covalently bonding MoO 3 microcapsules (MM) nanoparticles with a sheath-core structure into pristine cotton fabrics and integrating MM nanoparticles with sodium alginate (SA) through electrostatic forces and peptide linkages. The resulting photochromic wearable exhibits reversible color transformation and exceptional photochromic characteristics, including remarkable fatigue resistance (>40 cycles), rapid light response, and outstanding color retention (>60 days). Moreover, the photochromic wearable exhibits exceptional stability in diverse harsh environments, including different acid-base solutions (pH 2.0–9.0), various temperatures (−30°C–60°C), indoor light and sunshine exposure, and repeated laundering (>15 cycles). This photochromic fabric exhibits exceptional wearability, boasting remarkable flexibility (17 mm) and biocompatibility (cell viability >95%). Notably, rewritable T-shirts and QR code information security encryption systems are demonstrated, highlighting their potential in customizable designs, flexible rewritable textiles, and information security encryption.
研究领域:
材料科学
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纺织工程
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生物医学工程
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DOI
高影响因子
Journal of Materials Chemistry C
·
2024
·Vol. 12
·期 27
·10218-10225
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IF 5.7
Tingfeng Ma,Bin Li,Yongkang Zhu,Senwei Wu,Xiujian Zhao,Xinhong Chu,Shouqin Tian
Tungsten oxides have attracted much attention and research in the field of photochromic smart windows, but their application is limited by their slow light response and poor reversibility. In order to overcome the limitations, Zn2+-doped W18O49 nanoparticles were prepared using a facile hydrothermal method and they exhibited good photochromic performance with a quick coloring rate under UV irradiation because more oxygen vacancies in the crystal lattice caused by Zn doping could facilitate the reduction of W6+ to W5+, which was confirmed from XRD and XPS results. In addition, the Zn-doped W18O49 nanoparticle-based films showed excellent photochromic properties with a high visible transmittance (Tlum) of 85.33%, a large solar modulation efficiency (ΔTsol) of 47.18% and a fast photochromic speed (3 min) as well as good cycling stability. These properties are better than those reported in most previous works. Therefore, this work can provide a promising photochromic material with high performance for smart windows.
研究领域:
材料科学
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纳米技术
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DOI
高影响因子
DYES AND PIGMENTS
·
2024
·
IF 4.1
Changwu Zheng,Xufang Zhang,Aiqin Gao,Meng Ju,Aiqin Hou,Kongliang Xie
Advanced biomimetic materials with tunable luminescence and changeable color have received immense attention for their great potential in various photonic applications. Herein, we fabricate two naphthalimide (NA)-functionalized spiropyran (SP) photoswitch molecular materials containing intramolecular energy donor-acceptor combinations (SP–N1, SP-N2), which have the adjustable multimodality fluorescence emissions and gradient photochromism. The intramolecular fluorescence resonance energy transfer within the excited states can be realized via designing the proximal distance between spiropyran and naphthalimide chromophore groups and their structure conversion, whereby the multimodality fluorescence emission can be generated. The color and intensity of fluorescence emissions are regulated by designing energy donor and acceptor system. The detailed spectroscopic and time-dependent density functional theory (TD-DFT) studies demonstrate that the effective photoconversion between SP-NA and the corresponding open structure merocyanine (MC) isomers (MC-NA) is facilitated by the large free volume induced by the rigid conjugation planes of the molecules. The PET composite films containing functional molecules have adjustable multimodal fluorescence emissions and variable photoinduced color. They are applied in multi-level anti-counterfeiting, and the patterns with the multi-signal output mode greatly enhance the level of anti-counterfeiting. The biomimetic materials with tunable luminescence and variable colors have potential applications in complex information encryption , advanced anti-counterfeiting, and optical devices.
研究领域:
材料科学
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光学
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生物仿生学
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DOI
高影响因子
Wood Material Science & Engineering
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2024
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IF 2.2
Yanchun Fu,Jingyu Chen
The photochromic properties are highly desirable for advanced wood applications, but they have not been extensively studied. To incorporate photochromic capabilities into wood materials, composite coatings were developed on the wood surface using an electric field-assisted layer-by-layer (LBL) self-assembly technique. The composite coatings consist of cationic chitosan and anionic tungsten trioxide (WO3) nanoparticles. By applying a direct current voltage during the deposition process, a well-organized distribution of WO3 nanoparticles was achieved, resulting in a uniform coverage of the wood substrate. This assembly process facilitated the creation of structured photochromic coatings with minimal nanoparticle fillers, a straightforward and rapid procedure, and potential for large-scale production. Lab colorimetric results demonstrated that the wooden substrate changed color from its natural state to blue when exposed to UV light. UV-vis spectroscopy further confirmed the efficient absorption of WO3 and photochromic properties of the modified wood.
研究领域:
材料科学
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林业工程
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纳米技术
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2025
·
IF 19
Xiangyu Tian,Zixu Zeng,Yi He,Lecheng Lei,Chunlin Yu,Xingwang Zhang
The utilization of TiO 2 for the fabrication of transparent photochromic materials is both cost-effective and environmentally friendly. However, it still poses challenges due to the rapid recombination of electron-hole pairs and poor organic-inorganic compatibility. Oxygen vacancies play a crucial role in sustaining sacrificial electron donors for hole scavenging, demonstrating great potential in enhancing photochromic performance. Herein, Rb doping and lattice strain are applied to synergistically engineer oxygen vacancies, considering lattice oxygen release is influenced by charge neutrality and oxygen atom coordination environment. Furthermore, the particle surface is modified using composite siloxanes to ensure monodispersion and enhance organic-inorganic compatibility. Structural analyses and theoretical calculations indicate that Rb doping and epitaxial strain synergistically reduce the oxygen vacancy formation energy and promote the chemical adsorption of diethylene glycol (DEG) on the TiO 2 surface for hole scavenging. The designed DEG-added Rb-TiO 2 /TB-CS (TB means extra titanium butoxide, CS means composite siloxanes) nanodispersion exhibits a significant optical modulation amplitude exceeding 90% at 650 nm, rapid response within 60 s, and stable reversibility in color-switching (50 cycles). Moreover, utilizing Rb-TiO 2 /TB-CS with DEG ligands as a responsive material enables the fabrication of transparent photochromic polyacrylate-based hybrid films, polyvinyl alcohol-based hydrogels, and hydroxyethyl cellulose-based rewritable papers, showcasing its immense potential for diverse applications.
研究领域:
材料科学
·
化学工程
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DOI
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2024
·
IF 18.5
Hui Li,Xinyang Peng,Wanning Xi,Tao Jiang,Ziyang Zhao,Xiaoxuan Yu,Wang Liu,Baiheng Wu,Yan Ge,Zhenhui Qi,Junqiu Liu
The explosive growth of information and its widespread availability underscores the need for robust encryption and anticounterfeiting measures. In this study, CdS quantum dots are engineered (QDs) to manifest multiple visual responses to a single trigger through strategic ligand design. The surface engineering method allows QDs to transition from yellow to black upon photoexcitation-induced electron transfer from Cd(II) to Cd(0). Surface ligands desorption under hole injection, leading to an increase in QDs size and resulting in a redshift in photoluminescence. This photoexcitation-induced redox reaction reveals unprecedented photochromism and photoluminescence phenomena, establishing a foundation for advanced information protection measures. Utilizing these QDs, excellent writing performance under UV irradiation is achieved in solid-state substrates, while a dual-mode encryption system is realized in gel matrices, opening up new avenues for information encryption as well as cumulative and interactive information protection. Furthermore, the redox reaction of CdS QDs is employed as ink for 3D printing, enabling for the creation of digitally programmable materials with distinct temporally evolving appearances by controlling the oxygen content in the ink to regulate the rate of photochromism. This advancement also sheds light on the progress in 3D printing technology.
研究领域:
材料科学
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纳米技术
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DOI
高影响因子
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
·
2017
·
IF 2.625
Yan Zhou,Heng-Yi Zhang,Yu Liu
We developed a model dual-light-responsive luminescent lanthanide supramolecular switch. A poly[2]pseudorotaxane was firstly constructed from a dilanthanide metal supramolecular assembly (EuTb· 1 EPO ) and an asymmetric diarylperfluorocyclopentene ( 2 ), in which EuTb· 1 EPO exhibits a satisfactory and tunable lanthanide luminescence, while the 2 moiety in the poly[2]pseudorotaxane displays a reversible photochromic process upon light irradiation with an excellent resistance to fatigue. By switching between closed-form and open-form states of 2 using ultraviolet and visible light irradiation alternately, the lanthanide luminescence of poly[2]pseudorotaxane can be quenched and rapidly recovered, that is, the poly[2]pseudorotaxane can be used as switchable controlling unit.
研究领域:
化学
·
材料科学
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DOI
高影响因子
Journal of Materials Chemistry A
·
2019
·Vol. 7
·期 21
·13180-13187
·
IF 10.733
Sunxian Yan,Delong Hou,Gaofu Yang,Siyu Pan,Qiuping Xie,Qi Zeng,Zhonghui Wang,Yi Chen,Haojun Fan
Recently, a few strategies have emerged to synthesize two-dimensional (2D) polymers comprising laterally connected areal monomeric units that extend in two orthogonal directions. Despite such progress, rational design of non-persistent 2D polymers that require neither harsh conditions nor extra chemicals to dissociate, thus imposing a potentially diminished environmental burden, remains a challenge. Here, we report a mechanically new strategy that enables formation and dissociation of a 2D supramolecular polymer sheet in response to light. The constituent monomers are cucurbit[6]urilSP, an engineered cavitand bearing multiple photochromic spiropyran (SP) moieties at its periphery. When irradiated with UV light, the SP isomerizes into zwitterionic merocyanine (MC), affording a single-cucurbit[6]uril-thick polymer sheet in the presence of Ca2+via multiple in-plane inter-monomeric MC⋯Ca2+⋯MC bridges. The free-standing polymer is stable in the dark, but dissociates into oligomers upon exposure to visible light as the peripheral MC isomerizes back to SP. Since light is a noninvasive and environmentally benign stimulus with high spatiotemporal solution, the rationale underlying the present effort may point the way towards new 2D polymers that are non-persistent to avoid repeating the accumulation problem now haunting conventional linear polymers, thus bringing this emerging material one step closer to sustainability.
研究领域:
材料科学
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化学
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DOI
高影响因子
NEW JOURNAL OF CHEMISTRY
·
2013
·Vol. 37
·期 5
·1385-1390
·
IF 2.966
Mei-Duo Zhang,Yan-Feng Zhang,De-Hua Li,Guang Wang,Jian-Xin Li
A photochromic polymer film has been fabricated by the layer-by-layer (LBL) self-assembly through alternating the deposition of poly(acrylic acid) bearing a naphthopyran copolymer and poly(4-vinylpyridine) in an organic solvent. The multilayer assembly process is monitored via UV-vis spectroscopy by measuring the increase in absorbance at 380 nm, and the results reveal that the multilayer films grow in a uniform way in each deposition. Atomic force microscopy (AFM) images prove that the surface of the film was relatively smooth. The photochromic properties of the naphthopyran in the LBL films are investigated and the kinetic results confirm that the colored merocyanine in the LBL films show a significant slow fading speed (critical T1/2 decoloration time increased to 64 min in the 3-bilayer film) and are more stable than those in previous reports.
研究领域:
材料科学
·
化学
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产品关联
DOI
高影响因子
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
·
2022
·Vol. 23
·期 24
·15735
·
IF 6.208
Zhe Luo,Yang Zhang
Wood dyeing is an effective way to alleviate the supply-demand imbalance of valuable wood and improve the surface decoration of fast-growing wood. However, applications of dyed wood are limited due to the susceptibility of dyes and wood to photo-discolor and degrade under light irradiation. Thus, the improved weather resistance of dyed wood is crucial. To prevent photochromic discoloration of dyed wood, an anti-photochromic coating structure was constructed via layer-by-layer self-assembly (LbL) using chitosan and zinc oxide (ZnO). The results showed that the surface color difference of treated dyed wood was reduced by approximately 84.6% after the first 2 h of irradiation under the following conditions °C: temperature (50 °C), relative humidity (55%), and irradiation intensity (550 W/m2). However, the color of untreated dyed wood drastically changed at this stage. The reason for the decrease was that the redness and yellowness of treated dye wood were significantly reduced. The deposition of ZnO onto treated dyed wood helped to protect the wood from UV light irradiation. Chitosan bridged the dyes and complexed ZnO to enhance UV resistance. This study provides valuable information for the protection of dyed wood against light discoloration that can be used as an interior and exterior decorative material.Keywords:dyed wood;UV;chitosan;ZnO;photochromic;assembly
研究领域:
材料科学
·
木材科学
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）