检索结果-南通市图书馆

Ultrathin, Lightweight, and Flexible CNT Buckypaper Enhanced Using MXenes for Electromagnetic Interference Shielding

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2021年第4期13卷 208-220页

作者： Rongliang Yang xuchun gui Li Yao Qingmei Hu Leilei Yang Hao Zhang Yongtao Yao Hui Mei Zikang Tang State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510275People’s Republic of China Science and Technology on Thermostructural Composite Materials Laboratory School of Materials Science and EngineeringNorthwestern Polytechnical UniversityXi’an 710072ShaanxiPeople’s Republic of China Instrumental Analysis and Research Center(IARC) Sun Yat-Sen UniversityGuangzhou 510275People’s Republic of China National Key Laboratory of Science and Technology on Advanced Composites in Special Environments Harbin Institute of TechnologyHarbin 150080People’s Republic of China Institute of Applied Physics and Materials Engineering University of MacaoTaipa 999078MacaoPeople’s Republic of China

Lightweight,flexibility,and low thickness are urgent requirements for next-generation high-performance electromagnetic interference(EMI)shielding materials for catering to the demand for smart and wearable electronic *** several efforts have focused on constructing porous and flexible conductive films or aerogels,few studies have achieved a balance in terms of density,thickness,flexibility,and EMI shielding effectiveness(SE).Herein,an ultrathin,lightweight,and flexible carbon nanotube(CNT)buckypaper enhanced using MXenes(Ti3C2Tx)for high-performance EMI shielding is synthesized through a facile electrophoretic deposition *** obtained Ti3C2Tx@CNT hybrid buckypaper exhibits an outstanding EMI SE of 60.5 dB in the X-band at 100μ*** hybrid buckypaper with an MXene content of 49.4 wt%exhibits an EMI SE of 50.4 dB in the X-band with a thickness of only 15μm,which is 105%higher than that of pristine CNT ***,an average specific SE value of 5.7×10^(4) dB cm^(2) g^(−1) is exhibited in the 5-μm hybrid ***,this assembly process proves promising for the construction of ultrathin,flexible,and high-performance EMI shielding films for application in electronic devices and wireless communications.

关键词： Carbon nanotube MXene Buckypaper Electromagnetic interference shielding

Engineering Smart Composite Hydrogels for Wearable Health Monitoring

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2023年第7期15卷 233-277页

作者： Jianye Li Qiongling Ding Hao Wang Zixuan Wu xuchun gui Chunwei Li Ning Hu Kai Tao Jin Wu State Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510275People’s Republic of China Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China Department of Chemistry Zhejiang UniversityHangzhou 310058People’s Republic of China ZJU-Hangzhou Global Scientific and Technological Innovation Center Zhejiang UniversityHangzhou 311215People’s Republic of China Department of Otolaryngology The First Affiliated HospitalSun Yat-Sen UniversityGuangzhou 510275People’s Republic of China

Growing health awareness triggers the public's concern about health problems. People want a timely and comprehensive picture of their condition without frequent trips to the hospital for costly and cumbersome general check-ups. The wearable technique provides a continuous measurement method for health monitoring by tracking a person's physiological data and analyzing it locally or *** the health monitoring process,different kinds of sensors convert physiological signals into electrical or optical signals that can be recorded and transmitted, consequently playing a crucial role in wearable techniques. Wearable application scenarios usually require sensors to possess excellent flexibility and stretchability. Thus, designing flexible and stretchable sensors with reliable performance is the key to wearable technology. Smart composite hydrogels, which have tunable electrical properties, mechanical properties, biocompatibility, and multi-stimulus sensitivity, are one of the best sensitive materials for wearable health monitoring. This review summarizes the common synthetic and performance optimization strategies of smart composite hydrogels and focuses on the current application of smart composite hydrogels in the field of wearable health monitoring.

关键词： Wearable health monitoring Smart composite hydrogel Hydrogel engineering Wearable sensor Flexible and stretchable sensors

Humidity Sensing of Stretchable and Transparent Hydrogel Films for Wireless Respiration Monitoring

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2022年第11期14卷 218-236页

作者： Yuning Liang Qiongling Ding Hao Wang Zixuan Wu Jianye Li Zhenyi Li Kai Tao xuchun gui Jin Wu State Key Laboratory of Optoelectronic Materials and Technologies and the Guangdong Province Key Laboratory of Display Material and Technology School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510275People’s Republic of China Ministry of Education Key Laboratory of Micro and Nano Systems for Aerospace Northwestern Polytechnical UniversityXi’an 710072People’s Republic of China

Respiratory monitoring plays a pivotal role in health assessment and provides an important application prospect for flexible humidity ***,traditional humidity sensors suffer from a trade-off between deformability,sensitivity,and transparency,and thus the development of high-performance,stretchable,and low-cost humidity sensors is urgently needed as wearable ***,ultrasensitive,highly deformable,and transparent humidity sensors are fabricated based on cost-effective polyacrylamide-based double network ***,a general method for preparing hydrogel films with controllable thickness is proposed to boost the sensitivity of hydrogel-based sensors due to the extensively increased specific surface area,which can be applied to different polymer networks and facilitate the development of flexible integrated *** addition,sustainable tapioca rich in hydrophilic polar groups is introduced for the first time as a second cross-linked network,exhibiting excellent water adsorption *** the synergistic optimization of structure and composition,the obtained hydrogel film exhibits an ultrahigh sensitivity of 13,462.1%/%RH,which is ***,the hydrogel film-based sensor exhibits excellent repeatability and the ability to work normally under stretching with even enhanced *** a proof of concept,we integrate the stretchable sensor with a specially designed wireless circuit and mask to fabricate a wireless respiratory interruption detection system with Bluetooth transmission,enabling real-time monitoring of human health *** work provides a general strategy to construct high-performance,stretchable,and miniaturized hydrogel-based sensors as next-generation wearable devices for real-time monitoring of various physiological signals.

关键词： Stretchable and transparent humidity sensors Hydrogel film Wireless and wearable sensor Respiration monitoring Ultrasensitive

Direct stamping multifunctional tactile sensor for pressure and temperature sensing

在线全文

学校读者我要写书评

暂无评论

Nano Research 2022年第4期15卷 3614-3620页

作者： Binghao Liang Bingfang Huang Junkai He Rongliang Yang Chengchun Zhao Bo-Ru Yang Anyuan Cao Zikang Tang xuchun gui State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510275China Department of Materials Science and Engineering College of EngineeringPeking UniversityBeijing 100871China Institute of Applied Physics and Materials Engineering University of MacaoAvenida da UniversidadeTaipaMacaoChina

Flexible and wearable sensors have broad application prospects in health monitoring and artificial *** different single-functional sensing devices have been developed in recent years,such as pressure sensors and temperature ***,it is still a great challenge to design and fabricate tactile sensors with multiple sensing ***,we propose a simple direct stamping method for the fabrication of multifunctional tactile *** can detect pressure and temperature stimuli signals *** pressure/temperature sensor possesses high sensitivity(0.67 kPa^(-1)),large linear range(0.75-5 kPa),and fast response speed(15.6 ms)in pressure *** also has a high temperature sensitivity(1.41%/℃)and great linearity(0.99)for temperature sensing in the range of-30 to 30℃.All these excellent performances indicate that this pressure/temperature sensor has great potential in applications for artificial intelligence and health monitoring.

关键词： pressure sensing temperature sensing carbon nanotube direct stamping

Direct Patterning of Carbon Nanotube via Stamp Contact Printing Process for Stretchable and Sensitive Sensing Devices

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Nano-Micro Letters 2019年第4期11卷 619-629页

作者： Binghao Liang Zian Zhang Wenjun Chen Dongwei Lu Leilei Yang Rongliang Yang Hai Zhu Zikang Tang xuchun gui State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou 510275People’s Republic of China State Key Laboratory of Optoelectronic Materials and Technologies School of PhysicsSun Yat-Sen UniversityGuangzhou 510275People’s Republic of China Institute of Applied Physics and Materials Engineering University of MacaoAvenida da UniversidadeTaipaMacaoPeople’s Republic of China

Flexible and wearable sensing devices have broad application prospects in bio-monitoring such as pulse measurement,motion detection and voice *** recent years,many significant improvements had been made to enhance the sensor’s performance including sensitivity,flexibility and ***,it is still extremely complicated and difficult to prepare a patterned sensor directly on a flexible ***,inspired by typography,a lowcost,environmentally friendly stamping method for the mass production of transparent conductive carbon nanotube(CNT)film is *** this dry transfer strategy,a porous CNT block was used as both the seal and the ink;and Ecoflex film was served as an object *** CNT patterns can be easily fabricated on the polymer substrate by engraving the target pattern on the CNT seal before the stamping ***,the CNT film can be directly used to fabricate ultrathin(300μm)strain *** strain sensor possesses high sensitivity with a gauge factor(GF)up to 9960 at 85%strain,high stretchability(>200%)and repeatability(>5000 cycles).It has been used to measure pulse signals and detect joint motion,suggesting promising application prospects in flexible and wearable electronic devices.

关键词： Carbon nanotube Strain sensor Dry transfer Stamp contact printing process

Patternable and transferable silver nanowire conductors via plasma-enhanced cryo-transferring process towards highly stretchable and transparent capacitive touch sensor array

在线全文

学校读者我要写书评

暂无评论

Nano Research 2023年第8期16卷 11303-11311页

作者： Yifan Gu Zhiguang Qiu Simu Zhu Hao Lu Lisha Peng Gaofan Zhang Ziyi Wu xuchun gui Zong Qin Bo-ru Yang State Key Laboratory of Optoelectronic Materials and Technologies Guangdong Province Key Laboratory of Display Material and TechnologySchool of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510006China

Stretchable transparent electrode(STE)plays a key role in numerous emerging applications as an indispensable component for future stretchable *** embedded STE,as a promising candidate,possesses balanced performances and facile preparation ***,it still suffers from the defects of conductive materials caused by the transferring,which results in the irreversible failure of *** this work,a patternable silver nanowire(AgNW)STE was fabricated by a plasma-enhanced cryo-transferring(PEC-transferring)*** to the plasma-induced sintering,the AgNW network obtained remarkable improvement in robustness,which ensured the intact network after transferring and thus led to superior tensile electrical properties of the ***,serpentine patterns were utilized to optimize the tensile electrical properties of the STE,which achieved a figure of merit of 292.8 and 150%resistance changing under 50%*** a practical application,a 4×3 array of the mutual-capacitive type stretchable touch sensors was demonstrated for future touch sensors in stretchable *** PEC-transferring process opened a new avenue for patternable embedded STEs and exhibited its high potential in wearable electronics and the Internet of Thing devices.

关键词： stretchable transparent electrode silver nanowire plasma treatment transferring process serpentine

Atomic layer deposition of core-shell structured V_(2)O_(5)@CNT sponge as cathode for potassium ion batteries

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Materiomics 2019年第3期5卷 344-349页

作者： Fangliang Ye Dongwei Lu xuchun gui Tengrui Wang Xiaoying Zhuang Wei Luo Yunhui Huang Institute of New Energy for Vehicles School of Materials Science and EngineeringTongji UniversityShanghai201804China State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-sen UniversityGuangzhou510275China Department of Geotechnical Engineering College of Civil EngineeringTongji UniversityShanghai200092China

Potassium-ion batteries(KIBs)represent one of the most promising alternatives to lithium-ion batteries(LIBs)considering the potential low cost and abundant potassium *** this work,we demonstrate a core-shell structured sponge cathode for KIBs,where amorphous V_(2)O_(5) uniformly coats on carbon nanotube(CNT)sponge via atomic layer deposition(ALD).The V_(2)O_(5)@CNT sponge shows several advantages as cathode:(1)the three-dimensional(3D)conductive network of CNT sponge offers a fast electron transport pathway,(2)the porous nature and high surface area of CNT sponge enables enough access for electrolyte to V_(2)O_(5),(3)the amorphous structure of V_(2)O_(5) offers a fast kinetics upon K-ion insertion/*** V_(2)O_(5)@CNT sponge cathode delivers a high capacity of 206mA h/g and moderate cycling and rate performance in common carbonate-based electrolyte system.

关键词： Potassium ion batteries Atomic layer deposition Amorphous vanadium oxide Carbon nanotube sponge

Microwave absorbing properties and magnetic properties of different carbon nanotubes

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Science China(Technological Sciences) 2009年第1期52卷 227-231页

作者： xuchun gui KunLin Wang JinQuan Wei RuiTao Lü QinKe Shu Yi Jia Chen Wang HongWei Zhu DeHai Wu Key Laboratory for Advanced Manufacturing by Materials Processing Technology Department of Mechanical Engineering Tsinghua University Beijing 100084 China Department of Materials Science and Engineering Tsinghua University Beijing 100084 China

The microwave absorbing properties and magnetic properties of as-grown Fe-filled carbon nanotubes (CNTs), annealed Fe-filled CNTs, and multi-walled CNTs were studied. Vibrating sample magnetometer results showed that the annealed Fe-filled CNTs have the weakest coercivity and strongest saturation magnetization among the three types CNTs, due to the presence of more ferromagnetic α-Fe nanowires. After annealing, the values increased to 291.0 Oe and 28.0 emu/g and the samples showed excellent microwave absorbing properties. The reflection loss was over 5 dB between 11.6 GHz and 18 GHz with a maximum value of 10.8 dB for annealed Fe-filled CNTs (1.1 wt%)/epoxy composite.

关键词： carbon nanotubes microwave absorbing properties magnetic properties

Flexible, Transparent and Conductive Metal Mesh Films with Ultra‑High FoM for Stretchable Heating and Electromagnetic Interference Shielding

在线全文

学校读者我要写书评

暂无评论

Nano-Micro Letters 2024年第5期16卷 201-213页

作者： Zibo Chen Shaodian Yang Junhua Huang Yifan Gu Weibo Huang Shaoyong Liu Zhiqiang Lin Zhiping Zeng Yougen Hu Zimin Chen Boru Yang xuchun gui State Key Laboratory of Optoelectronic Materials and Technologies School of Electronics and Information TechnologySun Yat-Sen UniversityGuangzhou 510275People’s Republic of China Guangdong Provincial Key Laboratory of Materials for High Density Electronic Packing Shenzhen Institutes of Advanced TechnologyChinese Academy of SciencesShenzhen 518055GuangdongPeople’s Republic of China School of Materials Science and Engineering Sun Yat-Sen UniversityGuangzhou 510275People’s Republic of China

Despite the growing demand for transparent conductive films in smart and wearable electronics for electromagnetic interference(EMI)shielding,achieving a flexible EMI shielding film,while maintaining a high transmittance remains a significant ***,a flexible,transparent,and conductive copper(Cu)metal mesh film for EMI shielding is fabricated by self-forming crackle template method and electroplating *** Cu mesh film shows an ultra-low sheet resistance(0.18Ω□^(-1)),high transmittance(85.8%@550 nm),and ultra-high figure of merit(>13,000).It also has satisfactory stretchability and mechanical stability,with a resistance increases of only 1.3%after 1,000 bending *** a stretchable heater(ε>30%),the saturation temperature of the film can reach over 110°C within 60 s at 1.00 V applied ***,the metal mesh film exhibits outstanding average EMI shielding effectiveness of 40.4 dB in the X-band at the thickness of 2.5μ*** a demonstration,it is used as a transparent window for shielding the wireless communication electromagnetic ***,the flexible and transparent conductive Cu mesh film proposed in this work provides a promising candidate for the next-generation EMI shielding applications.

关键词： Metal mesh Transparent conductive film Stretchable heater Electromagnetic interference shielding