ACS Applied Materials & Interfaces
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2024
·
IF 8.3
Pengfei Li,Xu Ma,Guifen Gong,Caihong Xu,Zongbo Zhang
AgNW networks show high promise as a conductive material due to excellent flexibility, low resistance, high transparency, and ease of large-scale preparation. However, the application of AgNW networks has been hindered by their inherent characteristics, such as easy oxidation degradation, chemical corrosion, and structural instability at high temperatures. In this study, a dense SiOx protective layer derived from perhydropolysilazane was introduced to fabricate a robust SiOx/AgNW nanocomposite coating through an all-solution process at room temperature. The achieved nanocomposite coating shows outstanding thermal stability up to 450 °C, resistance to ultraviolet radiation, and excellent mechanical performance by maintaining stability after 10,000 cycles of bending at a radius of 2.5 mm, 1000 cycles of peeling, and 1200 cycles of wearing. Meanwhile, the nanocomposite coating demonstrates exceptional chemical tolerance against HCl, Na2S, and organic solvents. A transparent heater based on the nanocomposite coating achieves a remarkable benchmark with a maximum temperature of 400 °C at 20 V. These features highlight the potential of the nanocomposite coating in flexible electronics, optoelectronics, touch screens, and high-performance heaters.
研究领域:
材料科学
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纳米技术
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电子工程
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DOI
PubMed
高影响因子
Journal of Materials Chemistry C
·
2022
·Vol. 10
·期 45
·17066-17074
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IF 8.067
Zhuochao Wang,Peng Wang,Wenxin Cao,Chunqiang Sun,Zicheng Song,Dongchao Ji,Lei Yang,Jiecai Han,Jiaqi Zhu
Electromagnetic interference (EMI) pollution poses risks to electronic devices and human health and has emerged as a major source of pollution. In addition to being low in weight and exhibiting high transparency, flexibility, and easy processability, the polymer-based transparent conductive films (TCFs) increasingly used for EMI shielding exhibit fragility, and scratches in TCFs during service usually cause severe electromagnetic wave leakage and waste. To address this issue, we designed a DMBA-modified oxime-carbamate polyurethane film with remarkable mechanical strength, high transmittance, and self-healing efficiency and prepared TCFs by uniformly depositing AgNWs and Ti3C2Tx MXene on the material surface. The TCFs show an ultra-low sheet resistance (18 Ω sq−1), high transmittance (82.8%), good EMI shielding effectiveness (SE, 27.1 dB), and excellent retention of properties after 1000 flexures and rapid recovery after three cutoff/self-repair cycles, demonstrating resistance against damage. The novel TCFs exhibit great potential for application in consumer electronics, radio communications, and radar stealth.
研究领域:
材料科学
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电子工程
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产品关联
DOI
高影响因子
MICROCHEMICAL JOURNAL
·
2024
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IF 4.9
Jiaqi Li,Fengqing Zhang,Haibin Nu,Chao Zhou,Guangfeng Wu
Flexible strain sensors capable of detecting minute mechanical signals and easily adaptable to various irregular surfaces have garnered significant interest for applications in structural health monitoring, early detection, and failure prevention. As state-of-the-art smart materials, these flexible strain sensors should possess highly sensitive sensing capabilities, prolonged durability, and the ability to self-repair. In this study, 1,8-diamino-P-menthane (MD) is incorporated into a waterborne polyurethane (WPU) backbone to induce a microphase separation structure that balances mechanical properties while enhancing self-healing capabilities through hydrogen bonding. Consequently, a blend of self-healing WPU, MXene, and AgNW was employed to fabricate composite conductors featuring an asymmetric continuum structure that exhibits exceptional electrical conductivity and self-healing properties. The distinctive laminate architecture of MXene enables the sensitive detection of signals generated by both bending and tensile deformation (up to 400 %).
研究领域:
材料科学
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传感器技术
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DOI
高影响因子
ACS Applied Nano Materials
·
2025
·
IF 5.5
Zhaoxian Chen,Yao Liu,Wenrou Yu,Shihong Liu,Yingzhou Huang
Traditionally, cardiovascular disease diagnosis has relied on invasive testing methods, which may cause anxiety or discomfort in patients. Noninvasive diagnostic technologies, such as wearable sensors, offer significant advantages by reducing these concerns. Surface-enhanced Raman spectroscopy (SERS) is an ultrasensitive technique well-suited for disease diagnosis, particularly when combined with machine learning (ML) algorithms. In this study, we introduce AgNW/MXene hydroxyl composite membranes as SERS substrates for cholesterol detection in sweat. The high specific surface area of MXene enhances the adsorption of target molecules, thereby improving SERS signal sensitivity. Cholesterol was successfully detected at a concentration of 10–8 M, demonstrating the robustness of the method over 50 stretch-release cycles. A random forest (RF) model was employed to classify sweat samples from healthy individuals and cardiovascular patients, achieving an accuracy of 83.5%. Compared to traditional invasive methods, our approach provides a noninvasive, highly sensitive, and durable alternative with the added advantage of easy integration into wearable diagnostic devices. The high sensitivity and durability of these wearable sweat sensors highlights their potential for advancing noninvasive cardiovascular disease detection.
研究领域:
医学诊断
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材料科学
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机器学习
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产品关联
DOI
高影响因子
Small
·
2023
·Vol. 20
·期 6
·2307242
·
IF 13.3
Yixiong Ji,Wangxian Chen,Di Yan,James Bullock,Yang Xu,Zhenghua Su,Wentong Yang,Jamie Stuart Laird,Tian Zheng,Na Wu,Wusong Zha,Qun Luo,Chang-Qi Ma,Trevor A. Smith,Fangyang Liu,Paul Mulvaney
Photovoltaic thin film solar cells based on kesterite Cu 2 ZnSn(S, Se) 4 (CZTSSe) have reached 13.8% sunlight-to-electricity conversion efficiency. However, this efficiency is still far from the Shockley-Queisser radiative limit and is hindered by the significant deficit in open circuit voltage ( V OC ). The presence of high-density interface states between the absorber layer and buffer or window layer leads to the recombination of photogenerated carriers, thereby reducing effective carrier collection. To tackle this issue, a new window structure ZnO/AgNW/ZnO/AgNW (ZAZA) comprising layers of ZnO and silver nanowires (AgNWs) is proposed. This structure offers a simple and low-damage processing method, resulting in improved optoelectronic properties and junction quality. The ZAZA-based devices exhibit enhanced V OC due to the higher built-in voltage ( V bi ) and reduced interface recombination compared to the usual indium tin oxide (ITO) based structures. Additionally, improved carrier collection is demonstrated as a result of the shortened collection paths and the more uniform carrier lifetime distribution. These advances enable the fabrication of the first ITO-free CZTSSe solar cells with over 10% efficiency without an anti-reflective coating.
研究领域:
材料科学
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能源技术
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光伏器件
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产品关联
DOI
PubMed
高影响因子
Materials
·
2024
·Vol. 17
·期 19
·4788
·
IF 3.1
Hao Lv,Xue Qi,Yuxin Wang,Yang Ye,Peike Wang,Ao Yin,Jingjing Luo,Zhongqi Ren,Haipeng Liu,Suzhu Yu,Jun Wei
A multifunctional sensor comprising flexible and transparent ultraviolet (UV) photodetectors (PDs) with strain gauges based on Ag nanowire (AgNW)@ZnO nanorods (ZnONRs) was fabricated using a cost-effective, simple, and efficient method. High-aspect ratio silver nanowires were synthesized using the polyol method. An AgNW@ZnONR composite was formed via the hydrothermal method to ensure the multifunctional capability of the flexible sensors. After refining the process parameters, the size of the ZnO nanorods was decreased to fabricate pliable multifunctional sensors using AgNW@ZnONRs. At a deposition of 0.207 g of AgNW@ZnONRs, the sensor achieves its maximum switching ratio and fastest response time under conditions of 2000 μW/cm2UV optical power density. With a ton(rise time) of 2.7 s and a toff(fall time) of 2.3 s, the ratio of Ionto Ioffcurrent is 1151. Additionally, the sensor’s maximum optical current value correlates linearly with UV light’s power density. The maximum response current increased from 222.5 pA to 588.1 pA, an increase of 164.3%, when the bending angle was increased from 15° to 90° for the sensor with a deposition of 0.276 g of AgNW@ZnONRs. There was no degradation in the response of the sensors after 10,000 bending cycles, as they have excellent stability and repeatability, which means they can meet the requirements of wearable sensor applications. Therefore, there is great potential for the practical application of multifunctional AgNW@ZnONRs in flexible sensors.
研究领域:
材料科学
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传感器技术
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产品关联
DOI
PubMed
高影响因子
Materials
·
2019
·Vol. 12
·期 2
·322
·
IF 2.972
Ren’ai Li,Kaili Zhang,Guangxue Chen
Conductive paper has the advantages of being low-cost, lightweight, disposable, flexible, and foldable, giving it promising potential in future electronics. However, mainstream conductive papers are opaque and rigid, which seriously affect the wide application of conductive paper. In this paper, we demonstrate a highly transparent, flexible, and conductive paper, fabricated by mixing cellulose nanofibers (CNFs) with silver nanowires (AgNWs) and then plasticizing with choline chloride/urea solvent. The as-prepared CNF/AgNW paper showed high transparency (~90% transmittance) and flexibility (~27% strain), and low sheet resistance (56 Ω/sq). Moreover, the resistance change of CNF/AgNW paper increased only ~1.1% after 3000 bending−unbending cycles under a 150° large angle, implying a long working life and stability. In view of this, our methodology has the potential to open a new powerful route for fabrication of paper-based green electronics.Keywords:conductive paper;cellulose nanofiber;silver nanowires;choline chloride/urea
研究领域:
材料科学
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纳米技术
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电子学
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产品关联
DOI
PubMed
高影响因子
npj Flexible Electronics
·
2020
·Vol. 4
·期 1
·1-7
·
IF 0
Liu Junchen,Lin Sen,Huang Kai,Jia Chao,Wang Qingmin,Li Ziwei,Song Jianan,Liu Zhenglian,Wang Haiyang,Lei Ming,Wu Hui
Manufacturing a flexible, light, large-area, and high-efficiency electromagnetic shielding materials in a straightforward and cost-effective manner presently remains a significant challenge. In this work, we propose a conductive network design and verify its electromagnetic interference (EMI) shielding effectiveness (SE) by simulation. Using the structure and parameters obtained by simulation, we prepare a flexible EMI shielding material using silver nanowires (AgNWs)/polyvinyl butyral (PVB) ethanol solution and textile substructure via a facile immersing method. In the frequency range of 5–18 GHz, the AgNWs/PVB textile with 1.4 mm thickness achieves an EMI SE of 59 dB, which exceeds the requirements for commercial applications. Due to the low density of 56 mg/cm 3 , specific shielding effectiveness (SSE) of this material reaches 1053 dB m 3 /g. It is found that the AgNWs/PVB textile is more resistant to washing with water and oxidation than AgNWs textile without a PVB protector. As a result, the conductivity of AgNWs/PVB textile exhibits no change after washing with water and varies slightly after being kept in hot air. We find that a signal monitor is unable to detect a signal emitted by a mobile phone from a jacket lined with AgNWs/PVB textile. AgNWs/PVB textile with these properties can be mass-produced as high-efficiency EMI shielding material for commercial applications.
研究领域:
材料科学
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电子工程
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DOI
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
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2021
·Vol. 32
·期 5
·6080-6093
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IF 2.478
Zhou Jun,Yu Junsheng,Bai Dongyu,Lu Jun,Liu Huili,Li Ying,Li Lu
The flourishing development and fast-growing consumption of flexible electronics has brought great pressure to the fragile environment owing to the large amount of plastic waste generated by their non-degradable petroleum-derived polymeric substrates. To alleviate environmental burdens, there’s an urgent need to develop bio-based and biodegradable polymers to replace the petroleum-derived ones used in flexible electronics. In this work, a fully biodegradable polymer, stereocomplex-type polylactide (SC-PLA), together with silver nanowire (AgNW) was exploited to fabricate conductive composite film and the application of this film in flexible electronics was explored. By thermal annealing in the protection of a zinc oxide (ZnO) layer, the AgNW/SC-PLA film with 100% stereocomplex crystallites was obtained. The ZnO/AgNW/SC-PLA film exhibited the sheet resistance of 39.3 Ω/sq with good stability under bending and tape tests. As contrasted with PLA, the film based on SC-PLA presented better mechanical properties and hydrolysis resistance. Specially, a pressure sensor based on the ZnO/AgNW/SC-PLA film was successfully fabricated and it showed considerable flexibility, high sensitivity, and good stability. This work provided an effective way to fabricate biodegradable AgNW/SC-PLA film with high performances and great application potentials, which could help broaden the applications of SC-PLA and develop degradable flexible electronics.
研究领域:
材料科学
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环境科学
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生物医学工程
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DOI
高影响因子
ACS Applied Materials & Interfaces
·
2022
·
IF 10.383
Tingting Hao,Shen Wang,Hongbo Xu,Xiang Zhang,Shlomo Magdassi,Lei Pan,Ying Song,Yao Li,Jiupeng Zhao
The application of flexible indium tin oxide (ITO)-free electrochromic devices (FCDs) has always been a research hotspot in flexible electronics. Recently, a silver nanowire (AgNW)-based transparent conductive film has raised great interest as an ITO-free substrate for FCDs. However, several challenges, such as the weak binding of AgNWs to the substrate, high junction resistance, and oxidation of AgNWs, remain. In this paper, a novel method for surface modification of AgNWs with N-aminoethyl-γ-aminopropyltrimethoxysilane [Si(NH2)] solution is proposed to enhance the bonding with the flexible substrates and the active materials, thereby inhibiting the delamination of AgNWs from the substrate and reducing the high junction resistance between nanowires. The TiO2/AgNW–Si(NH2)/poly(ethylene terephthalate) (PET) films show outstanding mechanical properties, of which the resistance remains almost unchanged after mechanical bending of 5000 cycles (ΔR/R0 ≈ 3.6%) and repeated peeling off cycles with 3M tape 100 times (ΔR/R0 ≈ 6.0%). In addition, we found that the oxygen-containing groups on the TiO2/AgNW–Si(NH2)/PET surface form hydrogen bonds with the TiO2 sol, resulting in tight contact between the TiO2 sol and the AgNWs, which prevents the AgNWs from oxidation. As a result, the TiO2/AgNW–Si(NH2)/PET film exhibited long-time aging (ΔR/R0 ≈ 4.9% in the air for 100 days) stability. A FCD was constructed with the TiO2/AgNW–Si(NH2)/PET film, which showed excellent electrochromic performance (94% retention) after 5000 bending cycles, indicating high stability and mechanical flexibility. These results present a promising solution to the transparent conductive films for flexible energy devices.
研究领域:
材料科学
·
柔性电子技术
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DOI
PubMed
高影响因子
Journal of Cleaner Production
·
2026
·
IF 10.7
Zhanwei Guo,Minming Zou,Wenxing Luo,Chao Qiang,Jue Wang,Wenjing Chen,Yan Ma,Qinglin Li,Xiongxin Jiang,Tao Xu,Xiaowu Hu
Waste-derived MS was upcycled as the main photothermal filler. • Aligned channels and GLYMO network enabled water transport and stability. • STA/Raman analyses supported confined-water enthalpy reduction. • AgNWs coupled with MS enhanced evaporation performance. Solar-driven interfacial evaporation offers an efficient route for alleviating freshwater scarcity, but its practical performance strongly depends on the rational integration of photothermal fillers, water-transport pathways, and thermally insulating matrices. Herein, MXene sediment (MS), a byproduct generated during MXene preparation, was reutilized as a waste-derived photothermal filler and incorporated with a low loading of silver nanowires (AgNWs) into a GLYMO-crosslinked poly (vinyl alcohol)/polyacrylamide (PVA/PAAm) aerogel. The vertically aligned microchannels and superhydrophilic polymer network provided continuous water transport, while the GLYMO-reinforced organic–inorganic network improved structural robustness. In addition, the broadband absorption of MS and AgNW-assisted optical enhancement enabled a solar absorptance of approximately 95%. Under 1 sun illumination, the optimized PPAMS 20 @AgNWs evaporator achieved an evaporation rate of 3.21 kg m −2 h −1 and an effective-enthalpy-based solar-to-vapor efficiency of approximately 97%. It also exhibited stable repeated-operation performance over 25 cycles and good salt-resistant behavior under the tested high-salinity conditions. This work demonstrates a potential strategy for converting MS into a functional photothermal filler for solar-driven seawater desalination. Working Principle, Testing, and Exploration of the PPAMS Interface Evaporator. Download: Download high-res image (310KB) Download: Download full-size image
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DOI
高影响因子
Nanoscale
·
2025
·
IF 5.1
Huangying Guo,Wenyu Wan,Pengcheng Deng,Yang Luo,Xing Zhou
Cross and secondary electromagnetic pollution is a major challenge in current electromagnetic interference (EMI) mitigation. In this study, Fe3O4@MnO2 composite microspheres and AgNWs were prepared using modified solvothermal and hydrothermal methods. By optimizing the fabrication process and structural design of electromagnetic shielding composite films, we successfully constructed a composite film with superior shielding performance and reduced thickness. The Fe3O4@MnO2 composite exhibited an SEA/SET ratio of 83.32%, along with a high absorption coefficient A, indicating its dominant role in electromagnetic wave absorption, thereby mitigating excessive reflection. Results demonstrated that the gradient network-structured film possessed significantly enhanced electromagnetic wave absorption and attenuation capabilities compared to other three composite materials. The SEA/SET of the gradient network-structured film reached 86%, with a maximum SET of 58.65 dB. This hierarchical structure not only improves shielding effectiveness at reduced thickness but also enhances absorption, achieving the ultimate goal of high absorption with low reflection while minimizing resource consumption.
研究领域:
材料科学
·
电磁学
·
纳米技术
·
复合材料
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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）