ACS Applied Materials & Interfaces
·
2025
·
IF 8.2
Meng-Meng Song,Jing Li,Hao Lu,Jia-Xin Wang,Min-Feng Zeng,Xu-Wei Qi,Tao Zhou,Junhua Zhang,Bang-Jing Li,Sheng Zhang
Fabrication of dual-color fluorescent patterning with multiple sophisticated properties through a facile strategy is a great challenge, although it is highly desirable for the rapid development of modern society. Herein, we explore a novel strategy to realize dual-color fluorescent patterning by utilizing laser writing to generate local photoheat for rearrangement of electron groups containing n and π electrons to adjust electron delocalization. A polyurethane containing T-shaped quadruple hydrogen bonding moieties (IU-PUX) is designed to provide a rigid and strong H-bonding donor–acceptor structure. It is found that the fluorescence of the materials undergoes a transition from blue to cyan, green, and yellow successively upon heating due to the formation of electron delocalization domains of varying sizes through the rearrangement of hierarchical hydrogen bonds. The patterning process is efficient and cost-effective. The pattern has high resolution and can be erased on demand. In addition, the IU-PUX exhibits good self-healing and excellent adhesion properties due to the presence of a large amount of hydrogen bonds. The IU-PUX film with laser written patterns can be used as labels that could be easily adhered to various object surfaces and can be easily peeled off at high temperatures when needed, avoiding heavy consumption of single-use or transient labels. This study provides a facile and high-efficiency method to fabricate dual-color label materials with multiple properties.
研究领域:
材料科学
·
光学
·
化学工程
✓ 已验证
产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2021
·Vol. 31
·期 50
·2106673
·
IF 18.808
Jize Liu,Quanquan Guo,Xinxing Zhang,Jinggang Gai,Chuhong Zhang
Stimulus-responsive materials with designable integrated functions bridge the intelligent systems in future lifestyles with the Internet of Things (IoT). The growing trend for IoT and corresponding advanced devices will involve a great number of electronic disposables, which may place heavy burdens on the environment. Here, an elaborately designed multistage responsive material is reported for real-time, reversible light-writing based on organized stage-by-stage responsive behaviors and polarity-dependent physicochemical fluorescence response, where the stimulus is accurately delivered through a completely reversible “light-heat-fluorescence” pathway. The resulted materials can be pollution-freely written by hand-controlled near-infrared laser within 5 s, spontaneously erased within 20 s, and exhibit excellent re-writing ability (more than 5000 times while the variance of chromaticity coordinates <0.0008), which is difficult to achieve by traditional laser writing technologies. This study is a step toward high-performance long-life functional devices based on reversible multistage responsive materials for future IoT lifestyles.
研究领域:
材料科学
·
环境科学
✓ 已验证
产品关联
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-10
·
IF 14.7
Zheng Wenyan,Wang Zhuo,Chen Weilin,Zhang Mengchao,Li Hui,Yang Guang,Xu Qiang,Qiao Xvsheng,Tan Dezhi,Zhang Junjie,Qiu Jianrong,Qian Guodong,Fan Xianping
The direct laser writing (DLW) of photoluminescent metal clusters is inspiring intensive research in functional glasses. However, understanding the influence of the host structure on cluster formation and visualizing DLW-induced clusters at the atomic scale remains challenging. In this work, we develop a highly photosensitive fluorophosphate glass through fluorine incorporation. The addition of fluorine establishes a conducive environment for Ag + ions before DLW and enhances the availability of reducing agents and diffusion pathways during DLW. These advantages facilitate the formation of Ag clusters under low-energy single-pulsed DLW. Increasing laser energy results in a combination of Ag clusters and glasses defect, forming a dot + ring photoluminescent pattern. Atom probe tomography (APT), a technique capable of mapping the elemental spatial distribution and identifying clustering, is employed to gain more information on laser-induced clusters. Comparison of APT results between samples without and with DLW reveals the formation of Ag clusters after laser writing. The design concept and characterization enrich the understanding of Ag cluster behavior in glasses. This knowledge opens the possibility of rational design of clusters confined in glasses and inspires their synthesis for various applications.
研究领域:
材料科学
·
光学
✓ 已验证
产品关联
DOI
PubMed
高影响因子
OPTICS AND LASERS IN ENGINEERING
·
2021
·
IF 4.836
Jianing Liao,Wei Guo,Peng Peng
Copper-graphene composites have potential applications in flexible electronics due to their unique three-dimensional porous structure, high specific surface area, high electrical conductivity and electrochemical properties. Here, a simple room temperature fabrication method for conductive copper-graphene composites on different substrates, such as glass and polycarbonate, using direct laser writing process without pre-synthesis of copper nanomaterials and graphene flakes is presented. This process uses copper ion precursor and laser to generate copper nanoparticles and in-situ join them to form a network structure. Meanwhile, graphene also can be synthesized and coated on copper networks. The as-prepared copper-graphene composites are highly conductive and electrochemically active for thin conductive film and electrodes of supercapacitor . The composite film has a sheet resistance of 0.57Ω sq −1 and the capacitance of as-written copper-graphene all-solid-state flexible micro-supercapacitor is 13.2mF cm −2 at a current density of 0.5mA cm −2 . This simple and low temperature process for composite structures will enable the rapid fabrication of flexible devices with low cost.
研究领域:
材料科学
·
电子工程
✓ 已验证
产品关联
DOI
高影响因子
ELECTROANALYSIS
·
2022
·Vol. 35
·期 3
·e202200194
·
IF 3.077
Nguyen Thi Dieu Thuy,Guo Zhao,Xiaochan Wang,Emmanuel Awuah,Litao Zhang
In this study, an ion-selective electrode with a sensitive ion-to-electron transducer composed of porous laser-induced graphene (LIG) and MoS 2 (LIG-MoS 2 /ISE) was fabricated to measure the potassium ion concentration in a greenhouse nutrient solution for soilless culture. Additionally, a more effective and low-cost method was proposed for the large-batch production and manufacture of potassium ion-selective electrodes (K + -ISEs) using the direct laser writing technique, which differs considerably from existing methods. Moreover, the sensing mechanism of the proposed LIG-MoS 2 /ISE for potassium ion detection was investigated. The morphology and physical properties of the LIG-MoS 2 /SC-K + -ISEs were studied by X-ray diffraction (XRD), scanning electron microscopy (SEM), Raman spectroscopy and energy-dispersive spectroscopy. Potentiometric measurements, chronopotentiometry, potentiometric water layer tests, cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used to evaluate the analytical performance of the newly developed K + -ISEs. A Nernstian slope of 30.1 mV/decade for the activity of potassium ions in a concentration range from 10 −7 to 10 −2 M was determined. The EIS and chronopotentiometry results revealed that the LIG-MoS 2 /SC-K + -ISE had a larger resistance and double-layer capacitance than the LIG/SC-K + -ISE. The ion-selective membrane (ISM) and solid-contact layer did not have any water film between them, according to the potentiometric water layer test. The results proved that the LIG-MoS 2 nanocomposite could possibly be used as a sensitive ion-to-electron transducer to fabricate K + -ISEs. The K + -ISE fabrication method using the direct laser writing technique had a higher efficiency, enabling its broad application prospects in agriculture.
研究领域:
农业科学
·
材料科学
·
分析化学
✓ 已验证
产品关联
DOI
高影响因子
CHEMICAL ENGINEERING JOURNAL
·
2024
·
IF 13.3
Keliang Liu,Haibo Ding,Zhejun Chong,Yi Zeng,Yanfang Niu,Junning Zhang,Youlong Kang,Xin Du,Zhongze Gu
Photonic crystal hydrogels (PCHs) are promising materials for in-situ sensing demands in cell incubation systems such as microfluidic devices. However, the lack of ability to precisely construct and settle PCH sensors limits their future development. In this paper, we developed a versatile and highly controllable strategy to fabricate PCH sensing systems via direct laser writing (DLW) technology. We show that, PCH microsensors with precise geometries and diverse compositions could be exactly generated at desired positions using two-photon lithography (TPL). With such smart sensors, in-situ and spatiotemporal monitor of environmental parameters in liquid microdomains could easily be achieved using a microscope. This is demonstrated by generating PCH sensors for in-situ pH and metal ion strength analysis in microfluidic devices.
研究领域:
材料科学
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生物医学工程
·
传感器技术
✓ 已验证
产品关联
DOI
高影响因子
SENSORS AND ACTUATORS B-CHEMICAL
·
2018
·
IF 5.667
Rui You,Dong-Dong Han,Fangmeng Liu,Yong-Lai Zhang,Geyu Lu
In this work, we reported the fabrication of flexible NO 2 sensors arrays operating at room temperature on a composite film of In 2 O 3 and graphene oxide (GO) by direct laser writing (DLW) technology. The laser treatment not only induced the photoreduction of GO , leading to a highly porous structure due to the removal of oxygen groups, but also permitted mask-free patterning through a programmable manner, enabling flexible integration of sensor arrays on any substrates. We demonstrated the fabrication of a 2 × 4 NO 2 sensors array on a flexible polyimide substrate within 10 min. Our NO 2 sensors based on In 2 O 3 and reduced GO (In 2 O 3 @RGO) show liner NO 2 sensing properties at room temperature, good responsivity and recovery properties, as well as excellent selectivity towards NO 2 . We deem that the DLW fabrication of flexible NO 2 sensorsarrays may contribute to the development of flexible electronics.
研究领域:
材料科学
·
传感器技术
·
纳米材料
·
环境监测
·
柔性电子学
✓ 已验证
DOI
高影响因子
Sustainable Energy & Fuels
·
2021
·Vol. 5
·期 14
·3744-3754
·
IF 6.367
Wangda Qu,Zizhu Zhao,Jie Wang,Fengying Dong,Hui Xu,Xinzhi Sun,Hong Jin
A facile and additive-free approach was developed to synthesize pure lignin-derived porous carbon for highly flexible supercapacitor electrodes. Lignin was simply melted on a carbon cloth, and then subjected to direct laser writing (DLW). It was found that lignin was transformed into 3D porous graphene while bonding on the carbon cloth. The fabricated materials (LCE) under different laser powers were all confirmed as having a sharp (002) peak with small d002 spacing from the XRD profile, and a high IG/ID ratio from Raman spectra. The LCEs showed promising capacitive behaviors in electrochemical testing. The best LCE (i.e., LCE40) possesses a CA of 786 mF cm−2, and it was further characterized by XPS and HRTEM to determine its compositional and structural information. Moreover, LCE40 had super flexibility attributed to carbon cloth as the substrate. The CA of the LCE after bending remained at 93–97% under different current densities. When assembled into symmetric solid-state supercapacitors, the LCE40-based device showed an areal capacitance of 148.6 mF cm−2, which is much superior to all other reported laser-induced lignin-derived carbon. This one-step process is innovative and simpler than any other porous carbon fabrication and provides a method for fabricating lignin-derived flexible supercapacitors.
研究领域:
材料科学
·
电化学
·
纳米技术
·
能量存储
✓ 已验证
产品关联
DOI
高影响因子
ACS Applied Materials & Interfaces
·
2023
·
IF 9.5
Fuqing Shan,Xiaoxia Le,Hui Shang,Weiping Xie,Wei Sun,Tao Chen
As one of the most promising candidates for dynamic information storage, intelligent gels with tunable optical properties under external stimuli have received great attention. The implementation of transparency variation for information display is a favorable and versatile strategy but still faces the challenge of on-demand encryption–decryption. Herein, an optical tunable organohydrogel is prepared, which has interpenetrating heterogeneous networks consisting of hydrophilic poly(N,N-dimethylacrylamide) (PDMA) and hydrophobic polyoctadecyl methacrylate (PSMA). The long alkane side chains of PSMA endow the organohydrogel with the capacity of crystallization–melting transitions under the stimulus of heat, accompanied by transparent–opaque switching. In addition, the variations of transparency can also be achieved by water-induced hydrophobic association and microphase separation, resulting from the unique heterogeneous networks of the organohydrogel. Based on the abovementioned two aggregated structures, various pieces of information can be loaded on the organohydrogel by light writing or water printing with the assistance of masks. The coded information can be encrypted and decrypted by solvent replacement and temperature switching. This elaborately designed organohydrogel can act as an effective communication platform with an improved security level and ignite the sparks of developing novel information storage materials.
研究领域:
材料科学
·
纳米技术
·
光电子学
·
信息技术
✓ 已验证
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）