- 作 者: ( "dacheng wei" OR "da-cheng wei" )
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Self-Expanding Molten Salt-Driven Growth of Patterned Transition-Metal Dichalcogenide CrystalsJournal of the American Chemical Society (IF 15.419) Pub Date : 2022-05-04 ,DOI:10.1021/jacs.2c02518Dingding Jiang, Xuejun Wang, Renzhong Chen, Jiang Sun, Hua Kang, Daizong Ji, Yunqi Liu, Dacheng WeiTransition-metal dichalcogenides (TMDs) have been considered potential materials for the next generation of semiconductors. Realizing controllable growth of TMD crystals is a prerequisite for their future applications, which remains challenging. Here, we reveal a new mechanism of self-expanding molten salt-driven growth for a salt-assisted method and achieve the patterned growth of TMD single-crystal ...
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A cascaded algorithm based on GMM, GKF, and data fusion for mobile tracking in wireless sensor networkInternational Journal of Communication Systems (IF 2.047) Pub Date : 2022-04-17 ,DOI:10.1002/dac.5180Long Cheng, Dacheng Wei, Peng Zhao, Yan WangDepartment of Computer and Communication Engineering Northeastern University Qinhuangdao ChinaWireless sensor network (WSN) is formed with numerous communication nodes, which plays an important role in the Internet of Things (IoT). Location-based service is critically important for WSN; however, the nonline of sight (NLOS) condition can deteriorate the positioning precision significantly. In this paper, a robust localization algorithm based on the range measurements to deal with the mixed line ...
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Triple-Probe DNA Framework-Based Transistor for SARS-CoV-2 10-in-1 Pooled TestingNano Letters (IF 11.189) Pub Date : 2022-04-15 ,DOI:10.1021/acs.nanolett.2c00415Yungen Wu, Daizong Ji, Changhao Dai, Derong Kong, Yiheng Chen, Liqian Wang, Mingquan Guo, Yunqi Liu, Dacheng Wei
Accurate and population-scale screening technology is crucial in the control and prevention of COVID-19, such as pooled testing with high overall testing efficiency. Nevertheless, pooled testing faces challenges in sensitivity and specificity due to diluted targets and increased contaminations. Here, we develop a graphene field-effect transistor sensor modified with triple-probe tetrahedral DNA framework
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Two-Dimensional Field-Effect Transistor Sensors: The Road toward CommercializationChemical Reviews (IF 60.622) Pub Date : 2022-04-12 ,DOI:10.1021/acs.chemrev.1c00924Changhao Dai, Yunqi Liu, Dacheng WeiThe evolutionary success in information technology has been sustained by the rapid growth of sensor technology. Recently, advances in sensor technology have promoted the ambitious requirement to build intelligent systems that can be controlled by external stimuli along with independent operation, adaptivity, and low energy expenditure. Among various sensing techniques, field-effect transistors (FETs) ...
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Ultra-Fast Synthesis of Single-Crystalline Three-Dimensional Covalent Organic Frameworks and Their Applications in Polarized OpticsChemistry of Materials (IF 9.811) Pub Date : 2022-04-03 ,DOI:10.1021/acs.chemmater.1c02382Lan Peng, Jiang Sun, Jing Huang, Chaoyu Song, Qiankun Wang, Liqian Wang, Hugen Yan, Minbiao Ji, Dapeng Wei, Yunqi Liu, Dacheng WeiThe applications of covalent crystalline materials face a chronic challenge of the efficient and precise construction of a highly or single-crystalline product by polymerization, especially for three-dimensional covalent organic frameworks (3D COFs) featuring highly complex crystalline porous structures. Here, we demonstrate the first example of minutes growth of 3D COF single crystals, in which supercritical ...
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Flexible force sensitive frequency reconfigurable antenna base on stretchable conductive fabricJournal of Physics D: Applied Physics (IF 3.207) Pub Date : 2022-02-11 ,DOI:10.1088/1361-6463/ac4f91Li Shao, Xinyue Tang, Yujie Yang, Dacheng Wei, Yuanchang Lin, Guotian He, Dapeng WeiWith the development of wireless technology and flexible electronics, flexible frequency reconfigurable antennas have been directly used as sensors to detect mechanical signals. As an important frequency reconfigurable antenna, microstrip antenna has been widely studied in the field of flexible and flexible electronics in recent years. However, the stretchability of microstrip antennas usually comes ...
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Rapid and ultrasensitive electromechanical detection of ions, biomolecules and SARS-CoV-2 RNA in unamplified samplesNature Biomedical Engineering (IF 25.671) Pub Date : 2022-02-07 ,DOI:10.1038/s41551-021-00833-7Liqian Wang, Xuejun Wang, Yungen Wu, Mingquan Guo, Chenjian Gu, Changhao Dai, Derong Kong, Yao Wang, Cong Zhang, Di Qu, Chunhai Fan, Youhua Xie, Zhaoqin Zhu, Yunqi Liu, Dacheng WeiThe detection of samples at ultralow concentrations (one to ten copies in 100 μl) in biofluids is hampered by the orders-of-magnitude higher amounts of ‘background’ biomolecules. Here we report a molecular system, immobilized on a liquid-gated graphene field-effect transistor and consisting of an aptamer probe bound to a flexible single-stranded DNA cantilever linked to a self-assembled stiff tetrahedral ...
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Two-Dimensional Metal-Organic Frameworks and Covalent Organic FrameworksChinese Journal of Chemistry (IF 6.0) Pub Date : 2022-01-20 ,DOI:10.1002/cjoc.202100831Qiankun Wang, Jiang Sun, Dacheng WeiTwo-dimensional (2D) metal/covalent organic framework (MOF/COF) materials have ultra-thin thickness and large surface area. These advantages bestow them the characteristics of low resistance and high flux in the process of material transportation. Meanwhile, more active sites promote their application in the fields of catalysis and sensing. Recently, 2D MOF/COF materials usher in a new wave of research ...
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Shape-Engineerable Silk Fibroin Papers for Ideal Substrate Alternatives of Plastic Electronics (Adv. Funct. Mater. 52/2021)Advanced Functional Materials (IF 18.808) Pub Date : 2021-12-22 ,DOI:10.1002/adfm.202170386Haitao Liu, Wei Wei, Lei Zhang, Jianliang Xiao, Jing Pan, Qin Wu, Shuqi Ma, Hao Dong, Longteng Yu, Wenzhen Yang, Dacheng Wei, Hongwei Ouyang, Yunqi Liu
Silk Fibroin Papers
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Ultraprecise Antigen 10-in-1 Pool Testing by Multiantibodies Transistor AssayJournal of the American Chemical Society (IF 15.419) Pub Date : 2021-11-18 ,DOI:10.1021/jacs.1c08598Changhao Dai, Mingquan Guo, Yanling Wu, Ban-Peng Cao, Xuejun Wang, Yungen Wu, Hua Kang, Derong Kong, Zhaoqin Zhu, Tianlei Ying, Yunqi Liu, Dacheng WeiEffective screening of infectious diseases requires a fast, cheap, and population-scale testing. Antigen pool testing can increase the test rate and shorten the screening time, thus being a valuable approach for epidemic prevention and control. However, the overall percent agreement (OPA) with polymerase chain reaction (PCR) is one-half to three-quarters, hampering it from being a comprehensive method ...
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Rapid SARS-CoV-2 Nucleic Acid Testing and Pooled Assay by Tetrahedral DNA Nanostructure TransistorNano Letters (IF 11.189) Pub Date : 2021-11-04 ,DOI:10.1021/acs.nanolett.1c02748Xuejun Wang, Derong Kong, Mingquan Guo, Liqian Wang, Chenjian Gu, Changhao Dai, Yao Wang, Qunfeng Jiang, Zhaolin Ai, Cong Zhang, Di Qu, Youhua Xie, Zhaoqin Zhu, Yunqi Liu, Dacheng WeiDirect SARS-CoV-2 nucleic acid testing with fast speed and high frequency is crucial for controlling the COVID-19 pandemic. Here, direct testing of SARS-CoV-2 nucleic acid is realized by field-effect transistors (FETs) with an electro-enrichable liquid gate (LG) anchored by tetrahedral DNA nanostructures (TDNs). The applied gate bias electrostatically preconcentrates nucleic acids, while the liquid ...
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Direct SARS-CoV-2 Nucleic Acid Detection by Y-Shaped DNA Dual-Probe Transistor AssayJournal of the American Chemical Society (IF 15.419) Pub Date : 2021-10-08 ,DOI:10.1021/jacs.1c06325Derong Kong, Xuejun Wang, Chenjian Gu, Mingquan Guo, Yao Wang, Zhaolin Ai, Shen Zhang, Yiheng Chen, Wentao Liu, Yungen Wu, Changhao Dai, Qianying Guo, Di Qu, Zhaoqin Zhu, Youhua Xie, Yunqi Liu, Dacheng WeiRapid screening of infected individuals from a large population is an effective means in epidemiology, especially to contain outbreaks such as COVID-19. The gold standard assays for COVID-19 diagnostics are mainly based on the reverse transcription polymerase chain reaction, which mismatches the requirements for wide-population screening due to time-consuming nucleic acid extraction and amplification ...
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Olefin-linked covalent organic frameworks with twisted tertiary amine knots for enhanced ultraviolet detectionChinese Chemical Letters Pub Date : 2021-09-30 ,DOI:10.1016/j.cclet.2021.09.082Qianying Guo, Hongyan Ji, Lei Yang, Daizong Ji, Zhaolin Ai, Shi Luo, Jiatao Sun, Yunqi Liu, Dacheng WeiThough Olefin-linked covalent organic frameworks (oCOFs) possess excellent π-electron delocalization, the barely reversible olefin linkage brings challenges for oCOFs’ synthesis and functionalization. Here, we synthesize new oCOFs with tertiary amine knots which have twisted configuration and electron-donating nature. Investigation into the structural variation and photoelectric performance shows that ...
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Ultrasensitive Detection of SARS-CoV-2 Antibody by Graphene Field-Effect TransistorsNano Letters (IF 11.189) Pub Date : 2021-09-28 ,DOI:10.1021/acs.nanolett.1c00837Hua Kang, Xuejun Wang, Mingquan Guo, Changhao Dai, Renzhong Chen, Lei Yang, Yanling Wu, Tianlei Ying, Zhaoqin Zhu, Dapeng Wei, Yunqi Liu, Dacheng WeiThe fast spread of SARS-CoV-2 has severely threatened the public health. Establishing a sensitive method for SARS-CoV-2 detection is of great significance to contain the worldwide pandemic. Here, we develop a graphene field-effect transistor (g-FET) biosensor and realize ultrasensitive SARS-CoV-2 antibody detection with a limit of detection (LoD) down to 10–18 M (equivalent to 10–16 g mL–1) level. ...
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Shape-Engineerable Silk Fibroin Papers for Ideal Substrate Alternatives of Plastic ElectronicsAdvanced Functional Materials (IF 18.808) Pub Date : 2021-09-03 ,DOI:10.1002/adfm.202104088Haitao Liu, Wei Wei, Lei Zhang, Jianliang Xiao, Jing Pan, Qin Wu, Shuqi Ma, Hao Dong, Longteng Yu, Wenzhen Yang, Dacheng Wei, Hongwei Ouyang, Yunqi LiuPlastic-based electronics fill the gaps in conventional rigid silicon-based devices toward the applications in soft interfaces. However, people in the future should also consider their potential environmental impact if tons of non-degradable plastics are applied. Silk fibroin is a superior substrate alternative for the development of “green” electronics; whereas, the brittleness of silk films is still ...
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A comprehensive nano-interpenetrating semiconducting photoresist toward all-photolithography organic electronicsScience Advances (IF 14.136) Pub Date : 2021-06-18 ,DOI:10.1126/sciadv.abg0659Renzhong Chen, Xuejun Wang, Xin Li, Hongxiang Wang, Mingqian He, Longfei Yang, Qianying Guo, Shen Zhang, Yan Zhao, Yang Li, Yunqi Liu, Dacheng Wei
Owing to high resolution, reliability, and industrial compatibility, all-photolithography is a promising strategy for industrial manufacture of organic electronics. However, it receives limited success due to the absence of a semiconducting photoresist with high patterning resolution, mobility, and performance stability against photolithography solution processes. Here, we develop a comprehensive semiconducting
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Epitaxial etching of organic single crystalsChinese Chemical Letters Pub Date : 2021-06-17 ,DOI:10.1016/j.cclet.2021.06.030Cong Zhang, Daizong, Lang Jiang, Yunqi Liu, Dacheng WeiOrganic single crystals (OSCs) have received increasing interest in the last decades for their potential applications in flexible electronics. Although there are various additive manufacturing methods of organic electronics, the subtractive manufacturing of OSCs is still a challenge, since OSCs are assembled via weak van-der-Waals interactions which are vulnerable and cannot afford damages and degradation ...
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Short-wavelength ultraviolet dosimeters based on DNA nanostructure-modified graphene field-effect transistorsChemical Communications (IF 6.222) Pub Date : 2021-4-19 ,DOI:10.1039/d1cc01851eZhaolin Ai, Liqian Wang, Qianying Guo, Derong Kong, Yungen Wu, Yunqi Liu, Dacheng WeiDirect and sensitive short-wavelength ultraviolet (UVC) dosimeters could provide a safer disinfection environment against viruses. We developed direct, quantitative, specific and highly sensitive UVC dosimeters based on DNA nanostructure-modified graphene field-effect transistors. Detectable doses of the dosimeters range from 0.005 to 6 kJ m−2 and such dosimeters have at least 5 times better sensitivity ...
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Colossal Terahertz Photoresponse at Room Temperature: A Signature of Type-II Dirac FermiologyACS Nano (IF 15.881) Pub Date : 2021-02-23 ,DOI:10.1021/acsnano.0c10304Huang Xu, Fucong Fei, Zhiqingzi Chen, Xiangyan Bo, Zhe Sun, Xiangang Wan, Li Han, Lin Wang, Kaixuan Zhang, Jiazhen Zhang, Gang Chen, Changlong Liu, Wanlong Guo, Luhan Yang, Dacheng Wei, Fengqi Song, Xiaoshuang Chen, Wei LuThe discovery of Dirac semimetal has stimulated bourgeoning interests for exploring exotic quantum-transport phenomena, holding great promise for manipulating the performance of photoelectric devices that are related to nontrivial band topology. Nevertheless, it still remains elusive on both the device implementation and immediate results, with some enhanced or technically applicable electronic properties ...
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Plasma-Enhanced Chemical Vapor Deposition of Two-Dimensional Materials for ApplicationsAccounts of Chemical Research (IF 22.384) Pub Date : 2021-02-03 ,DOI:10.1021/acs.accounts.0c00757Kongyang Yi, Donghua Liu, Xiaosong Chen, Jun Yang, Dapeng Wei, Yunqi Liu, Dacheng WeiSince the rise of two-dimensional (2D) materials, synthetic methods including mechanical exfoliation, solution synthesis, and chemical vapor deposition (CVD) have been developed. Mechanical exfoliation prepares randomly shaped materials with small size. Solution synthesis introduces impurities that degrade the performances. CVD is the most successful one for low-cost scalable preparation. However, ...
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High-performance mid-infrared photodetection based on Bi2Se3 maze and free-standing nanoplatesNanotechnology (IF 3.874) Pub Date : 2020-12-17 ,DOI:10.1088/1361-6528/abcd64Shi Luo, JiaLu Li, Tai Sun, Xiangzhi Liu, Dacheng Wei, Dahua Zhou, Jun Shen, Dapeng WeiThe pursuit of optoelectronic devices operating in mid-infrared regime is driven by both fundamental interests and commercial applications. The narrow bandgap (0.3 eV) of layered Bi2Se3 makes it a promising material for mid-infrared photodetection. However, the weak absorption of mid-infrared optical power and high dark current level restrict its performance. Here, a supply-control technique is applied ...
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Microconformal Electrode-Dielectric Integration with Zinc Oxide for Flexible Ultrasensitive Robotic Tactile SensingNano Energy (IF 17.881) Pub Date : 2020-11-06 ,DOI:10.1016/j.nanoen.2020.105580Shi Luo, Xi Zhou, Xinyue Tang, Jialu Li, Dacheng Wei, Guojun Tai, Zongyong Chen, Tingmao Liao, Jianting Fu, Dapeng Wei, Jun YangFlexible pressure sensors have attracted a lot of interest because of their widespread applications in healthcare, robotics, wearable smart devices, human-machine interfaces. While microstructuring both the electrodes and dielectrics has been proven to have a significant improvement in the sensitivity and response speed of piezocapacitive sensors, the synergetic influence of microstructured electrodes ...
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Anisotropic ultrasensitive PdTe2-based phototransistor for room-temperature long-wavelength detection.Science Advances (IF 14.136) Pub Date : 2020-09-02 ,DOI:10.1126/sciadv.abb6500Cheng Guo,Yibin Hu,Gang Chen,Dacheng Wei,Libo Zhang,Zhiqingzi Chen,Wanlong Guo,Huang Xu,Chia-Nung Kuo,Chin Shan Lue,Xiangyan Bo,Xiangang Wan,Lin Wang,Antonio Politano,Xiaoshuang Chen,Wei Lu
Emergent topological Dirac semimetals afford fresh pathways for optoelectronics, although device implementation has been elusive to date. Specifically, palladium ditelluride (PdTe2) combines the capabilities provided by its peculiar band structure, with topologically protected electronic states, with advantages related to the occurrence of high-mobility charge carriers and ambient stability. Here,
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Graphene plasmonic nanoresonators/graphene heterostructures for efficient room-temperature infrared photodetectionJournal of Semiconductors Pub Date : 2020-07-01 ,DOI:10.1088/1674-4926/41/7/072907Tian Sun, Weiliang Ma, Donghua Liu, Xiaozhi Bao, Babar Shabbir, Jian Yuan, Shaojuan Li, Dacheng Wei, Qiaoliang BaoHigh-performance infrared (IR) photodetectors made by low dimensional materials promise a wide range of applications in communication, security and biomedicine. Moreover, light-harvesting effects based on novel plasmonic materials and their combinations with two-dimensional (2D) materials have raised tremendous interest in recent years, as they may potentially help the device complement or surpass ...
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Catalyst-Free Growth of Two-Dimensional BCxN Materials on Dielectrics by Temperature-Dependent Plasma-Enhanced Chemical Vapor Deposition.ACS Applied Materials & Interfaces (IF 9.229) Pub Date : 2020-06-23 ,DOI:10.1021/acsami.0c08555Kongyang Yi,Zhepeng Jin,Saiyu Bu,Dingguan Wang,Donghua Liu,Yamin Huang,Yemin Dong,Qinghong Yuan,Yunqi Liu,Andrew Thye Shen Wee,Dacheng WeiTraditional methods to prepare two-dimensional (2D) B–C–N ternary materials (BCxN), such as chemical vapor deposition (CVD), require sophisticated experimental conditions such as high temperature, delicate control of precursors, and postgrowth transfer from catalytic substrates, and the products are generally thick or bulky films without the atomically mixed phase of B–C–N, hampering practical applications ...
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Graphene Field‐Effect Transistors on Hexagonal‐Boron Nitride for Enhanced Interfacial Thermal DissipationAdvanced Electronic Materials (IF 7.295) Pub Date : 2020-06-11 ,DOI:10.1002/aelm.202000059Donghua Liu, Xiaosong Chen, Ying Zhang, Dingguan Wang, Yan Zhao, Huisheng Peng, Yunqi Liu, Xiangfan Xu, Andrew Thye Shen Wee, Dacheng WeiOwing to its atomic thickness, thermal dissipation is one significant bottleneck for the practical application of graphene in electronics. Here, it is demonstrated that a high‐quality ultraclean van der Waals interface can be obtained after modifying the SiO2/Si substrate with hexagonal‐boron nitride (h‐BN) by plasma‐enhanced chemical vapor deposition, which improves the mobility and the interfacial ...
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Highly-stable all-in-one photoelectrochemical electrodes based on carbon nanowallNanotechnology (IF 3.874) Pub Date : 2020-06-04 ,DOI:10.1088/1361-6528/ab8cf5Guilian Lan, Jinpeng Nong, Wei Wei, Xiangzhi Liu, Peng Luo, Weifeng Jin, Dacheng Wei, Dapeng WeiKey Laboratory of Optoelectronic Technology & Systems, Ministry of Education of China, College of Optoelectronic Engineering, Chongqing University, Chongqing 400044, People's Republic of China. Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People's Republic of China.Photoelectrochemical (PEC) cells offer a promising approach for developing low-cost solar energy conversion system. However, the lack of stable and cost-effective electrodes remians a bottleneck that hampers their practical applications. Here, we propose a kind of integrated all-in-one three dimensional (3D) carbon nanowall (CNW) electrodes without sensitized semiconductors for stable all-carbon PEC ...
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Self-Controlled Growth of Covalent Organic Frameworks by RepolymerizationChemistry of Materials (IF 9.811) Pub Date : 2020-06-01 ,DOI:10.1021/acs.chemmater.0c01140Lei Yang, Qianying Guo, Hua Kang, Renzhong Chen, Yunqi Liu, Dacheng WeiThe growth of covalent organic frameworks (COFs) normally goes through a fast polymerization process, which quickly forms amorphous powder and then slowly crystallizes to obtain nanometer-sized crystals. Until now, it is still a challenge to modulate the growth process of COFs, which hampers the controllable synthesis for practical applications. Here, we develop a repolymerization strategy which realizes ...
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Broadband InSb/Si heterojunction photodetector with graphene transparent electrodeNanotechnology (IF 3.874) Pub Date : 2020-05-14 ,DOI:10.1088/1361-6528/ab884cXiaoxia Li, Tai Sun, Kai Zhou, Xin Hong, Xinyue Tang, Dacheng Wei, Wenlin Feng, Jun Shen, Dapeng WeiCollege of Science, Chongqing University of Technology, Chongqing 400054, People's Republic of China. Chongqing Key Laboratory of Multi-scale Manufacturing Technology, Chongqing Institute of Green and Intelligent Technology, Chinese Academy of Sciences, Chongqing 400714, People's Republic of China.Silicon-based Schottky heterojunction photodetectors are promising due to its compatibility with semiconductor process. However, the applications of these devices are usually limited to wavelength shorter than 1.1 µm due to the low absorption of electrode materials at infrared. In this report, silicon-based compound semiconductor heterojunction photodetectors with graphene transparent electrode are ...
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Broadband photodetector based on 2D layered PtSe2 / silicon heterojunction at room-temperaturePhysica E: Low-dimensional Systems and Nanostructures (IF 3.382) Pub Date : 2020-04-22 ,DOI:10.1016/j.physe.2020.114147Kai Zhou, Jun Shen, Xiaoxia Li, Xin Hong, Wenlin Feng, Xinyue Tang, Xingchi Jiang, Dacheng Wei, Yifu Chen, Xueqin Liu, Yi Xie, Dapeng Wei, Tai SunPreviously, the PtSe2 has been proved to absorb light in the infrared band, but most of devices based on PtSe2 were reported in visible light applications while few of them applied in near-infrared. In the visible band, the silicon may absorb most of the light wave, and the device does not make full use of the absorption characteristics of the PtSe2. In our work, we form heterojunction by growing PtSe2 ...
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