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On-demand engineerable visible spectrum by fine control of electrochemical reactions

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National Science Review 2024年第3期11卷 239-249页

作者： Qirong Liu Lei Liu Yongping Zheng Min Li Baofu Ding Xungang Diao hui-ming cheng Yongbing Tang Advanced Energy Storage Technology Research Center Shenzhen Institute of Advanced TechnologyChinese Academy of Sciences Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced Technology Chinese Academy of Sciences School of Energy and Power Engineering North University of China School of Resource Environment and Safety EngineeringHunan University of Science and Technology School of Energy and Power Engineering Beihang University Shenzhen Key Laboratory of Energy Materials for Carbon Neutrality Shenzhen Institute of Advanced Technology Chinese Academy of Sciences Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

Tunability of optical performance is one of the key technologies for adaptive optoelectronic applications,such as camouflage clothing, displays, and infrared shielding. High-precision spectral tunability is of great importance for some special applications with on-demand adaptability but remains challenging. Here we demonstrate a galvanostatic control strategy to achieve this goal, relying on the finding of the quantitative correlation between optical properties and electrochemical reactions within materials. An electrochromic electro-optical efficiency index is established to optically fingerprint and precisely identify electrochemical redox reactions in the electrochromic device. Consequently, the charge-transfer process during galvanostatic electrochemical reaction can be quantitatively regulated, permitting precise control over the final optical performance and on-demand adaptability of electrochromic devices as evidenced by an ultralow deviation of <3.0%. These findings not only provide opportunities for future adaptive optoelectronic applications with strict demand on precise spectral tunability but also will promote in situ quantitative research in a wide range of spectroelectrochemistry, electrochemical energy storage, electrocatalysis, and material chemistry.

关键词： electrochromics fine control spectral tunability high precision galvanostatic control

Plasmon-enhanced ultra-high photoresponse of single-wall carbon nanotube/copper/silicon near-infrared photodetectors

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Nano Research 2024年第7期17卷 5930-5936页

作者： Yi-ming Zhao Xian-Gang Hu Chao Chen Zuo-Hua Wang An-Ping Wu Hong-Wang Zhang Peng-Xiang Hou Chang Liu hui-ming cheng Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China National Engineering Research Center for Equipment and Technology of Cold Strip Rolling College of Mechanical EngineeringYanshan UniversityQinhuangdao 066004China Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Single wall carbon nanotube(SWCNT)/Si heterojunction photodetectors have the advantages of high photoresponse ability and simple structure,however,their detection wavelength range are usually lower than 1100 nm,which limits their application in the infrared *** report a SWCNT/Cu/Si photodetector with both a high photoresponse and a detection range up to the infrared band by depositing a Cu nanoparticles(NPs)layer between a SWCNT film and a n-Si *** was found that the Cu NPs produce strong surface plasmon resonance(SPR)under laser irradiation,which breaks through the limitation of Si band gap and greatly improves the photoresponse of the SWCNT/Cu/Si photodetector in the near infrared *** responsivity(R)of the photodetector in the wavelength range of 1850–1200 nm reached 2.2–14.15 mA/W,which is the highest value in the reported plasmon enhanced n-Si based photodetectors,and about 20,000 times higher than that of a SWCNT/Si *** R value for 1550 nm wavelength used in optical communications reached~8.2 mA/W,which is 64%higher than the previously reported values of commonly used *** attribute the significant increase to the strong SPR and low Schottky barrier of Cu with n-Si,which facilitates the generation and transfer of the carriers.

关键词： single wall carbon nanotube photodetector silicon surface plasmon resonance copper

Densification of MXene films by sequential bridging

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National Science Review 2022年第1期9卷 10-11页

作者： hui-ming cheng Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenzhen Institute of Advanced Technology Chinese Academy of Sciences

Voids are an essential scientific issue when it comes to traditional composite materials, because they greatly degrade the laer’s properties and usually cause catastrophic failure [1].

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A bioinspired strategy for assembling graphene oxide sheets into high-performance graphene films

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Science China Chemistry 2018年第12期61卷 1475-1476页

作者： hui-ming cheng Tsinghua-Berkeley Shenzhen Institute Tsinghua University Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences

Since 2004,graphene has attracted intense attention from the scientific and industrial communities due to its extraordinary properties,such as ultrahigh strength and remarkable electrical *** production of high-quality gra- phene materials can be achieved by chemical vapor deposition and chemical exfoliation,and their applications have been widely explored [1-3].

关键词： bioinspired strategy assembling graphene oxide sheets graphene films

High-quality graphene films produced by freezestretching alignment

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Science China Materials 2021年第5期64卷 1302-1303页

作者： hui-ming cheng Shenzhen Geim Graphene Center Tsinghua Shenzhen International Graduate SchoolTsinghua UniversityShenzhen 518055China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

Monolayer graphene has the highest tensile strength,Young’s modulus, and electrical conductivity of known materials, and it is expected to be used in aerospace,automobiles, flexible electronics, etc. [1]. However, the extraordinary properties of graphene are on the molecular level and have not been realized when assembled into macroscopic materials.

关键词： stretching modulus conductivity

Two-dimensional ambipolar van der Waals heterostructures enabling in-sensor computing for high-accuracy image recognition

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Science China Materials 2022年第9期65卷 2611-2612页

作者： hui-ming cheng Faculty of Materials Science and Engineering/Institute of Technology for Carbon Neutrality Shenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China

A traditional image recognition system is separately composed of a photodetector and a processing *** photodetector first detects a target light signal,then converts the detected light signal to an electrical signal,a... 详细信息

关键词： computing image system

Metre-size single-crystal graphene becomes a reality

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Science Bulletin 2017年第15期62卷 1039-1040页

作者： hui-ming cheng Tsinghua-Berkeley Shenzhen Institute Tsinghua University Shenzhen 518055 China Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences Shenyang 110016 China Center of Excellence in Environmental Studies (CEES) King Abdulaziz University Jeddah 21589 Saudi Arabia

*** Liu of Peking University,a well-known graphene researcher and also one of the authors for the work[1]highlighted here,has always said,‘‘Fabrication determines the future'.I *** growth of large-area high-quality ... 详细信息

关键词：石墨大规模生产铜基材料单晶化学气相沉积 Ni合金北京大学器件应用

Erratum to: Tannic acid coated single-wall carbon nanotube membranes for the recovery of Au from trace-level solutions

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Nano Research 2024年第4期17卷 3426-3426页

作者： Chunmei Wang Peng-Xiang Hou Yiming Zhao Chao Shi Jiangang Zhang An-Ping Wu Chang Liu hui-ming cheng Shenyang National Laboratory for Materials Science Institute of Metal ResearchChinese Academy of SciencesShenyang 110016China Analysis and Test Center Shenyang University of Chemical TechnologyShenyang 110142China School of Materials Science and Engineering University of Science and Technology of ChinaShenyang 110016China School of Materials Science and Engineering Institute of Technology for Carbon NeutralityShenzhen Institute of Advanced TechnologyChinese Academy of SciencesShenzhen 518055China

Erratum to Nano Research,2023,16(8):11350–11357 https://***/10.1007/s12274-023-5803-y The article"Tannic acid coated single-wall carbon nanotube membranes for the recovery of Au from trace-level solutions",written by Chunmei Wang et al.,was erroneously originally published electronically on the publisher’s internet portal(currently SpringerLink)on 27 June 2023 with Fig.3(a).In Fig.3(a),the rejection of MWCNT is 38.9%instead of 98.3%.

关键词： carbon solutions coated

Properties and photodetector applications of two-dimensional black arsenic phosphorus and black phosphorus

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Science China(Information Sciences) 2021年第4期64卷 120-133页

作者： Ruyue HAN Shun FENG Dong-ming SUN hui-ming cheng Shenyang National Laboratory for Materials Science Institute of Metal Research Chinese Academy of Sciences School of Materials Science and Engineering University of Science and Technology of China School of Physical Science and Technology ShanghaiTech University Shenzhen Geim Graphene Center Shenzhen International Graduate School Tsinghua University

Two-dimensional(2D) black arsenic phosphorus(b-AsP), as an alloy of black phosphorus(bP) with arsenic, has attracted great attention because of its outstanding electronic and optical properties,including high carrier mobility, tunable bandgap and in-plane anisotropy. B-AsP has a smaller bandgap(0.15–0.3 eV) than the b-P bandgap(0.3–2.0 eV), and thus can be used for mid-infrared *** addition, both of them can form various van der Waals(vdW) heterojunctions with other 2D materials to realize novel functional optoelectronic devices. Here, we compare the basic characteristics of b-AsP and b-P, including crystal structure, optical properties, band structure, electrical properties and stability, and we summarize the update progress of b-AsP in photo detection, including representatives of phototransistor and photodiode devices. In the last part, the future research directions are discussed.

关键词： black arsenic phosphorus crystal structure optical property electrical property photodetector