Journal of Materials Chemistry C
·
2025
·
IF 5.1
Qian Zhou,Hao Feng,Lei Fang,Wei Bao,Kuanjun Fang
The development of wearable electronics, energy storage, and smart sensing has significantly increased the demand for highly conductive circuits on textiles. Silver (Ag) is a preferred material due to its excellent electrical conductivity, antibacterial properties, and biocompatibility. However, the hydrophobic nature and low surface energy of polyethylene terephthalate (PET) fabrics pose challenges for the adhesion of silver particles, limiting the mechanical durability and washability of conductive layers. This study proposes a novel strategy combining the synergetic pretreatment of PET fabrics using reducing agents (ascorbic acid and glucose) and hydroxypropyl methylcellulose (HPMC) to enhance the deposition of silver layers. The reducing agents facilitate the conversion of silver ions to metallic silver, while HPMC forms a uniform film on the fabric surface, providing anchoring points for silver particles through hydrogen bonding. The resulting silver layers exhibit high conductivity, uniformity, and durability, as confirmed by SEM, XRD, and XPS analyses. The treated fabrics demonstrate low electrical resistance and excellent abrasion resistance after multiple washes and rubbing. This method offers a simple, scalable, and cost-effective approach for constructing conductive textiles, with potential applications in wearable electronics and smart sensing.
研究领域:
材料科学
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纺织工程
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电子工程
✓ 已验证
产品关联
DOI
高影响因子
APPLIED SURFACE SCIENCE
·
2018
·
IF 4.439
Yun Mou,Hao Cheng,Hao Wang,Qinglei Sun,Jiaxin Liu,Yang Peng,Mingxiang Chen
Stability of conductive ink and mechanical flexibility of conductive pattern are essential for flexible printed electronics. In this work, we reported a stable reactive silver ink for the facile fabrication of flexible electrodes. The ink was mainly composed of silver-isopropanolamine (IPA) complex, formic acid reductant, and hydroxyethyl cellulose (HEC) adhesive agent, and it displayed good chemical stability. The flexible electrodes on polyimide (PI) substrates were achieved by mask-printing and thermal sintering of the ink, and the effects of sintering parameters and HEC adhesive agent content on the electrical and flexible properties and microstructure evolutions of silver layer were systematically investigated. Consequently, the silver layer sintered at 110 °C yields low electrical resistivity of 12.1 μΩ·cm, which is only eight times higher than that of bulk silver. Furthermore, the sintered silver layer still presents excellent flexibility and low relative resistances after the bending, twisting, and folding tests. These results demonstrate that the stable reactive silver ink provides a promising and low cost opportunity for low temperature design and fabrication of high performance flexible printed electronics.
研究领域:
材料科学
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电子工程
✓ 已验证
产品关联
DOI
高影响因子
Advanced Materials Interfaces
·
2022
·Vol. 9
·期 11
·2102121
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IF 6.389
Zelin Liu,Song Chen,Guangyong Zhang,Hang Shi,Xiaochan Chen,Wei Shi,Lan Liu
Even though intrinsically stretchable liquid metals (LMs) have been widely used in the stretchable electrodes for improving the stretchability, it is still challenging to achieve stable interfaces in these electrodes. A usual approach of adhering the LMs on a substrate is to modify the LMs with an organic surfactant, which is easily ruptured under a dynamic deformation. Herein, a surface-embedded silver and its selective alloying of LMs are reported to address this problem. Typically, the surface-embedding structure and the alloying interaction are both robust and stretchable, enabling the high interfacial stability during deformation (the ability to resist peeling, scratching, and sonication). And the cracked silver layer under tensile strains can be well bridged by LMs, enabling the good conducting stability during deformation (resistance change of 0.076 at 50% strain, 0.18 at 100% strain, and 0.4 at 200% strain). It is noted that this interfacial engineering can be facilely organized by directly printing or writing, which is convenient for preparing customized electrodes and circuits. At last, a light-emitting diode array and a drone remote controller are assembled using the stretchable electrodes, showing their advantages in practical application.
研究领域:
材料科学
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电子工程
✓ 已验证
DOI
高影响因子
Scientific Reports
·
2015
·Vol. 5
·期 1
·1-4
·
IF 5.578
Yin Yongqi,Sun Ye,Yu Miao,Liu Xiao,Jiang Tingting,Yang Bin,Liu Danqing,Liu Shaoqin,Cao Wenwu
ZnO nanorods (NRs) are known for ultra-sensitive biomolecule detection through fluorescence enhancement. In this work, we demonstrate that ZnO NR arrays grown on Ag layers can significantly improve the enhancement up to 86 times compared to that grown on bare Si and the enhancement can be modified in a controlled manner by varying Ag thickness. The much improved waveguide properties are attributed to the high reflectance of the Ag layers and their tuning effect on the diameters of ZnO NRs. Our results provide a deep insight into the mechanism of NRs-based fluorescence enhancement platform.
研究领域:
材料科学
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纳米技术
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光学
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生物传感
✓ 已验证
产品关联
DOI
PubMed
高影响因子
JOURNAL OF VACUUM SCIENCE & TECHNOLOGY B
·
2021
·Vol. 39
·期 5
·
IF 1.416
Fang Fang,Wu Junsheng,Yan CaiBo,Zhou Yanwen,Zhao Zhuo
We insert a silver (Ag) layer between zinc oxide (ZnO) and graphene films of a bilayer structure to create trilayer transparent conductive oxide films with improved conductivities due to the bridge provided by the Ag layer to transport free electrons. To construct trilayer ZnO/Ag/graphene transparent conductive films, the Ag and ZnO layers are deposited successively on a graphene/glass substrate by magnetron sputtering from solid Ag and powder ZnO targets. The results show that the electron concentration in the trilayer films increases one order of magnitude to 10 21 cm −3 upon inserting dispersed Ag dots and three orders of magnitude to 10 23 cm −3 upon adding a relatively continuous 10.5-nm-thick Ag layer. However, the electron mobility drops dramatically from 10 −1 to 10 −2 cm 2 V −1 s −1 because the dispersed Ag dots of a thin Ag layer form narrow bridges, which limit electron transport. The continuous 10.5-nm-thick Ag layer not only acts as a wide bridge but also provides electrons; therefore, the resistivity of the ZnO/Ag(continuous)/graphene trilayer decreases significantly, while the mobility of the trilayer film remains of the same order of magnitude as that of the continuous Ag layer. Of course, the transparency of the trilayer film decreases slightly upon inserting the Ag layer. To create frontier electrodes, the ZnO/Ag/graphene multilayer structure must be built up to form transparent conductive oxide films.
研究领域:
材料科学
·
纳米技术
✓ 已验证
产品关联
DOI
高影响因子
MICROELECTRONIC ENGINEERING
·
2019
·
IF 1.654
Zhiliang Wang,Lin Qin,Qingyue Chen,Wenwen Yang,Huiwen Qu
A flexible ultra-wideband (UWB) antenna using polyimide (PI) as the substrate is presented in this work. The required flexible UWB antenna structure was fabricated by surface modification and in situ self-metallization technique at room temperature. The design proposal, fabrication process , and performance testing were described in details. The −10 dB simulated and measured impedance bandwidth covered by the proposed antenna is 1.40–16.40 GHz and 1.35–16.40 GHz respectively, which both contains the entire standard 3.1–10.6 GHz UWB band. The realized gain is all above 2.8 dB in the standard UWB band. The antenna has an acceptable omnidirectional radiation pattern at both 2.45 and 5.2 GHz. Under bending conditions, the flexible UWB antenna maintains its omnidirectional radiation pattern, and also the formed silver layer presents excellent adhesion with PI films. This technique provides an optional approach for fabricating flexible antennas with no expensive equipment, vacuum condition and high-temperature thermal annealing .
研究领域:
电子工程
·
材料科学
✓ 已验证
产品关联
DOI
高影响因子
CHEMOSPHERE
·
2021
·
IF 7.086
Jiangfu Zheng,Wenbo Li,Rongdi Tang,Sheng Xiong,Daoxin Gong,Yaocheng Deng,Zhanpeng Zhou,Ling Li,Long Su,Lihua Yang
In this study, an investigation is conducted into the degradation of nitenpyram (NTP) using highly efficient APMMO/PDS/Vis system. As photocatalysts, silver phosphate (AP) and calcined Zn–Al layered double hydroxides (MMO) exhibit high efficiency in achieving charge separation. Besides, the injection of electrons into peroxydisulfate (PDS) from the APMMO can contribute to obtaining the species in the active state with higher efficiency. Based on the APMMO/PDS/Vis system, 50 mg/L of nitenpyram (NTP, 50 mL) can be completely removed in 60 min using 0.8 g/L photocatalyst and 0.2 g/L PDS under the optimum condition and visible light (780 nm > λ > 420 nm). Meanwhile, as demonstrated under visible light within 30 min, an ultrahigh degradation efficiency can be achieved by NTP based on APMMO1/PDS/Vis system. Besides, the electron paramagnetic resonance (EPR) technique and radical quenching experiments suggested 1 O 2 , h + , SO 4 − •, •O 2 − , and •OH are all contributory to the removal of pollutants. Given the outcomes achieved by LC/MS system and mass spectrometry, the primary degradation intermediates of NTP end up being converted into photodegradation products (such as 2-Chloropyridine, 6-Chloropurine Riboside and dl -Leucine). Additionally, there are three potential photodegradation pathways to NTP degradation have been deployed. Moreover, the NTP light degradation occurring in APMMO1/PDS/Vis system is competent under the three types of real water sample. Accordingly, the high-efficiency APMMO1/PDS/Vis system is fit for use in water pollution control for agricultural productions.
研究领域:
环境科学
·
农业科学
✓ 已验证
DOI
PubMed
高影响因子
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
·
2024
·
IF 4.9
Wen Shen,Fen Ao,Xuemei Ge,Yan Zheng,Xiaomin Luo
Triboelectric nanogenerator (TENG) has shown great potential in real-time monitoring of individual physiological state. Conductive metal nanofibers maintain good stability and mechanical strain as electrodes. Herein, a simple and safe strategy was provided to prepare electrospun gelatin membranes with in-situ coated silver layer for flexible TENG devices. Electrospun gelatin membranes were prepared by a one-pot method of dopamine-grafted gelatinmodification and physical modification through blending with polyvinyl alcohol (PVA). The silver coated electrospun membrane was constructed using the reductive immobilization of silver by dopamine. The content of silver and the output signal of the TENG can be further controlled using bio-crosslinked gelatin membranes. The electrospun gelatin membranes with immobilized silver layers did not show significantly cytotoxic to fibroblasts. The tensile strength of the membranes crosslinked reached 4 MPa, which was more flexible than the membranes uncrosslinked. The membranes showed significant inhibition against Staphylococcus aureus ( S. aureus ) and Pseudomonas aeruginosa ( P. aeruginosa ). The triboelectric output performance of the membrane can be controlled by adjusting the crosslinking method, which providing an effective strategy for implementing TENG in the monitoring of the wound healing process.
研究领域:
材料科学
·
纳米技术
·
生物医学工程
·
电气工程
✓ 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）