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Visible to near-infrared photodetector based on organic semiconductor single crystal

红外与毫米波学报 2025年第1期44卷 46-51页

作者： LI Xiang HU Jin-Han ZHONG Zhi-Peng CHEN Yu-Zhong WANG Zhi-Qiang SONG Miao-Miao WANG Yang ZHANG Lei LI Jian-Feng HUANG Hai School of Mathematics and Physics Lanzhou Jiaotong UniversityLanzhou 730070China State Key Laboratory of Photovoltaic Science and Technology Shanghai Frontiers Science Research Base of Intelligent Optoelectronic and PerceptionInstitute of Optoelectronic and Department of Material ScienceFudan UniversityShanghai 200433China School of Materials Science and Engineering Lanzhou Jiaotong UniversityLanzhou 730070China

Organic semiconductor materials have shown unique advantages in the development of optoelectronic devices due to their ease of preparation,low cost,lightweight,and *** this work,we explored the application of the organic semiconductor Y6-1O single crystal in photodetection ***,Y6-1O single crystal material was prepared on a silicon substrate using solution droplet casting *** optical properties of Y6-1O material were characterized by polarized optical microscopy,fluorescence spectroscopy,etc.,confirming its highly single crystalline performance and emission properties in the near-infrared *** based on Y6-1O materials with different thicknesses were then fabricated and *** was found that the devices exhibited good visible to near-infrared photoresponse,with the maximum photoresponse in the near-infrared region at 785 *** photocurrent on/off ratio reaches 10^(2),and photoresponsivity reaches 16 mA/*** was also found that the spectral response of the device could be regulated by gate voltage as well as the material thickness,providing important conditions for optimizing the performance of near-infrared *** study not only demonstrates the excellent performance of organic phototransistors based on Y6-1O single crystal material in near-infrared detection but also provides new ideas and directions for the future development of infrared detectors.

关键词： near-infrared photodetector organic semiconductor Y6-1O single crystal spectral response

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Double-confined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)C_(2)T_(x)@C toward ultra-stable Li-/Na-ion batteries

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Rare Metals 2024年第5期43卷 2067-2079页

作者： Dan Wang Qun Ma Huan He Zhi-Yuan Wang Run-Guo Zheng Hong-Yu Sun Yan-Guo Liu Chun-Li Liu School of Materials Science and Engineering Northeastern UniversityShenyang110819China School of Resources and Materials Northeastern University at QinhuangdaoQinhuangdao 066004China Key Laboratory of Dielectric and Electrolyte Functional Material Hebei Province Qinhuangdao 066004China Department of Physics and Oxide Research Center Hankuk University of Foreign StudiesYongin 17035Korea

Antimony-based materials with high capacities and moderate potentials are promising anodes for lithium-/-sodium-ion ***,their tremendous volume expansion and inferior conductivity lead to poor structural stability and sluggish reaction ***,a doubleconfined nanoheterostructure Sb/Sb_(2)S_(3)@Ti_(3)C_(2)T_(x)@C has been fabricated through a solvothermal method followed by low-temperature heat *** dual protection of“MXene”and“carbon”can better accommodate the volume expansion of Sb/Sb_(2)S_(3).The strong covalent bond(Ti-S,Ti-O-Sb,C-O-Sb)can firmly integrate Sb-based material with Ti_(3)C_(2)T_(x)and carbon,which significantly improves the structure *** addition,the carbon layer can restrain the oxidation of MXenes,and the nano-Sb/Sb_(2)S_(3)can facilitate electron/ion transport and suppress the restacking of *** heterogeneous interface between Sb and Sb_(2)S_(3)can further promote interfacial charge *** MXene-Sb/Sb_(2)S_(3)@C-1 with the optimal Sb content shows high specific capacities,comparable rate properties and ultra-stable cycling performances(250 m Ah·g^(-1)after 2500 cycles at 1 A·g^(-1)for sodium-ion batteries).Ex situ X-ray diffractometer(XRD)test reveals the storage mechanism including the conversion and alloying process of MXene-Sb/Sb_(2)S_(3)@*** voltammetry(CV)test results demonstrate that the pseudocapacitance behavior is dominant in MXene-Sb/Sb_(2)S_(3)@C-1,especially at large *** design paves the way for exploring high-performance alloy-based/conversion-type anode for energy storage devices.

关键词： Sb/Sb_(2)S_(3) MXene Carbon Anode Lithium-ion batteries Sodium-ion batteries

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Effects of various fillers on the thermal shock and fouling resistance characteristics of zirconia-based composite coatings for high-temperature applications

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Journal of King Saud University - engineering sciences 2024年

作者： Lestari, Yulinda Zulfia, Anne Wahyuadi, Johny Handayani, Wuri Soepriyanto, Syoni Akbar, Ari Yustisia Mabruri, Efendi PhD Candidate at Metallurgy and Material Engineering Department University of Indonesia Indonesia Metallurgy and Material Engineering Department University of Indonesia Indonesia Metallurgy and Material Engineering Department Bandung Institute of Technology and Science Indonesia Research Center for Metallurgy National Research and Innovation Agency Indonesia

Composite coating technology has been extensively developed to meet industrial demands for coatings with specifications that exceed the capabilities of conventional coating technologies and that can function in extreme environments and high temperatures. The composite coating in this study is focused on materials that have hydrophobicity. To achieve this hydrophobicity, the coating must have at least one restrictive property: antifouling. In this research, antifouling coating materials based on certain zirconia ceramic composites (ZrO2) and fillers, such as boron nitride, MoS2, and graphite, are chosen. The substrate used is a low-carbon steel, which is used in high-temperature power plants. The slurry spray coating method is chosen, which is a simple and low-cost method. Thermal shock and fouling resistance tests are conducted, and the samples are further observed with Scanning Electron Microscopy-Energy-Dispersive X-ray Spectroscopy (SEM-EDS). The results show that the higher the hBN filler content in the zirconia composite coating is, the better the thermal shock and antifouling resistance levels. This phenomenon is indicated by the lower delamination of the coating after the thermal shock treatment and the lower fouling of sodium sulfate deposits on the surface of the coating after the antifouling treatment than before. The same result is shown by the zirconia composite coating with hybrid filler (hBN-MoS2-Graphite). © 2024 The Authors

关键词： Zirconia

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Bio-tribological Characteristics of 3D-Printed Ti–Ta–Nb–Mo–Zr High Entropy Alloy in Human Body Emulating Biofluids for Implant Applications

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Journal of Bio- and Tribo-Corrosion 2023年第1期9卷 1-21页

作者： Kumar, Pankaj Patel, Mahesh Jain, Neelesh Kumar Gupta, Sharad Department of Mechanical Engineering Indian Institute of Technology Indore MP Indore453 552 India Department of Metallurgical and Material Science Engineering Indian Institute of Technology Indore MP Indore453 552 India Department of Biosciences and Biomedical Engineering Indian Institute of Technology Indore MP Indore453 552 India

This paper presents findings on corrosion and tribo-corrosion characteristics in human body emulating biofluids of 7.4 pH value at 37 °C, dry fretting wear, and abrasion resistance of equiatomic Ti–Ta–Nb–Mo–Zr high entropy alloy (HEA) developed by μ-plasma-based 3D-printing process. Physiological saline, phosphate buffered saline (PBS) solution, and 1% fetal bovine serum mixed with the PBS solution were used as the human body emulating biofluids to study corrosion and tribo-corrosion characteristics of the developed HEA. Minor abrasive wear and material ploughing in dry fretting wear zone are observed occurring due to the formation of loose wear debris and large-scale material displacement, respectively. The presence of biofluids significantly reduced coefficient of friction, average depth of worn scar, specific wear rate, open-circuit potential values, corrosion potential, and corrosion current density. Ti–Ta–Nb–Mo–Zr HEA showed better corrosion and tribo-corrosion resistance than Ti–22Nb, Ti–22Nb–6Zr, Ti–12Mo–5Ta, and Ti–20Nb–10Zr–5Ta alloys due to the formation of strong passive layers of oxides of its constituents, i.e., TiO2, Ta2O5, Nb2O5, NbO2, and ZrO2. It has higher abrasion resistance at higher applied load without much change in coefficient friction imparting it better resistance to wear and tear. Findings of this study make Ti–Ta–Nb–Mo–Zr HEA as preferable orthopedic implant material than the presently used materials. Graphical Abstract: [Figure not available: see fulltext.] © 2022, The Author(s), under exclusive licence to Springer Nature Switzerland AG.

关键词： Titanium dioxide

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A one-step,tunable method of selective reactive sputter deposition as a wrinkling approach for silver/polydimethylsiloxane for electrically conductive pliable surfaces

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Microsystems & Nanoengineering 2022年第4期8卷 221-231页

作者： Joel Y.Y.Loh Ali Zeineddine Moein Shayegannia Robyn McNeil Liam McRae Nazir P.Kherani Department of Electrical and Computing Engineering University of TorontoTorontoON M5S 3G4Canada Department of Material Science and Engineering University of TorontoTorontoON M5S 3E4Canada

The wrinkle period and morphology of a metal thin film on an elastic substrate is typically controlled by modifying the substrate before carrying out additional metal deposition ***,we show that a simultaneously selective and reactive sputtering plasma that modifies the surface of a polydimethylsiloxane(PDMS)substrate while not reacting with the metal during the deposition process decreases the wrinkle wavelength and induces additional wrinkling components and features such as ripples or *** selective reaction of the nitrogen plasma with PDMS functionalizes the siloxane surface into silicon *** hardens the immediate surface of PDMS,with a quadratic increase in the Young’s modulus as a function of the sputtering flow *** increase in the critical strain mismatch and the corresponding presence of folds in the nitrogen-modified wrinkled silver film form a suitable plasmonic platform for surface-enhanced Raman spectroscopy(SERS),yielding an enhancement factor of 4.8×105 for detecting *** enhancement is linked to the emergence of electromagnetic hotspots from surface plasmon polariton coupling between the folds/wrinkles,which in turn enables the detection of low concentrations of organics using ***,when strained,the nitrogen-modified wrinkles enhance electrical conductivity by a factor of 12 compared with unmodified ***,the optical properties of the substrate can be tuned by altering the N2 *** simple addition of nonreactive nitrogen to silver sputtering enables simultaneous PDMS hardening and growth of the silver film and together provide a new avenue for tuning wrinkling parameters and enhancing the electrical conductivity of pliable surfaces.

关键词： silver reactive film

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Nitrogen doped porous carbon-based bifunctional oxygen electrocatalyst with controllable phosphorus content for zinc-air battery

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Nano Research 2023年第4期16卷 5887-5893页

作者： Shichang Cai Zihan Meng Gaojie Li Yu An Yapeng Cheng Erjun Kan Bo Ouyang Haining Zhang Haolin Tang School of Material Science and Engineering Henan University of TechnologyZhengzhou 450001China Foshan Xianhu Laboratory of the Advanced Energy Science and Technology Guangdong LaboratoryXianhu Hydrogen ValleyFoshan 528200China State Key Laboratory of Advanced Technology for Materials Synthesis and Processing Wuhan University of TechnologyWuhan 430070China Department of Applied Physics and Institution of Energy and Microstructure Nanjing University of Science and TechnologyNanjing 210094China

The controllable construction of non-noble metal based bifunctional catalysts with high activities towards oxygen reduction reaction(ORR)and oxygen evolution reaction(OER)is of great significance,but remains a ***,we reported an effective method to synthesize cobalt-nitrogen doped mesoporous carbon-based bifunctional oxygen electrocatalyst with controllable phosphorus content(Co-N-P_(X)-MC,X=0.5,1.0,1.5,2.0).The mesoporous carbon substrate endowed the asprepared samples with more exposed active surface(236.50 m^(2)·g^(−1))and the most appropriate doping ratio of phosphorus had been investigated to be 1.5(Co-N-P1.5-MC).For ORR,Co-N-P1.5-MC exhibited excellent catalytic activity with more positive onset potential(1.01 V)and half-wave potential(0.84 V)than the other *** OER,Co-N-P1.5-MC also showed a low overpotential of 415 *** experimental results and density-functional theory(DFT)calculations,the outstanding bifunctional catalytic performance of Co-N-P1.5-MC was due to the synergistic cooperation between the P and N dopants,which could reduce the reaction barriers and was favorable for ORR and ***,the Zn-air battery using Co-N-P1.5-MC as the cathode showed remarkable battery performance with high stability(could operate stably for over 160 h at 10 mA·cm^(−2))and maximum power density(119 mW·cm^(−2)),demonstrating its potential for practical *** work could provide significant enlightenment towards the design and construction of bifunctional oxygen electrocatalyst for next-generation electrochemical devices.

关键词： cobalt-nitrogen doped porous carbon phosphorus doping bifunctional electrocatalyst oxygen reduction reaction(ORR)and oxygen evolution reaction(OER) Zn-air battery

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Revealing ionically isolated Li loss in practical rechargeable Li metal pouch cells

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science Bulletin 2025年第6期70卷 914-922页

作者： Xiangrui Duan Yuanjian Li Kai Huang Shuibin Tu Guocheng Li Wenyu Wang Hongyu Luo Zihe Chen Chunhao Li Kai Cheng Xin-Xin Wang Li Wang Yongming Sun Wuhan National Laboratory for Optoelectronics Huazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Material Processing and Die&Mold Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China State Key Laboratory of Material Processing and Die&Mold Technology Department of MechanicsSchool of Aerospace EngineeringHuazhong University of Science and TechnologyWuhan 430074China Institute of Nuclear&New Energy Technology Tsinghua UniversityBeijing 100084China

The degradation of rechargeable lithium(Li)metal batteries is primarily attributed to active Li loss,encompassing isolated Li,also known as“dead Li”,and solid electrolyte interphase(SEI-Li).Comprehending the formation of dead Li is pivotal for devising strategies to mitigate Li ***,we reveal the existence of an alternative form of dead Li,termed ionically isolated Li(I-iLi),which diverges from the traditionally recognized electronically isolated Li(E-iLi).This phenomenon is elucidated through a quantitative analysis of electrolyte-dependent capacity recovery at a specific state of health(SOH)in high-energy pouch cells,which originates from disconnections within the Li-ion percolation network induced by electrolyte ***,we propose the electrolyte infilling ratio(EFR),contingent upon the porosity of Li deposits and electrolyte retention,as a criterion to evaluate electrode *** uphold a high EFR environment,we introduce stress modulation to compact the anode structure and mitigate electrolyte degradation,significantly reducing the I-iLi content from 21%at 0.1 MPa to 1%at 1 *** these insights,a prototype anode-free LiNi_(0.95)Mn_(0.03)Co_(0.02)O_(2)||Cu pouch cell(1.4 Ah)achieves an extraordinary cell-level energy density of 551 Wh kg^(−1)and maintains 70%capacity after 100 cycles at 0.2 C.

关键词： Dead Li Ionically isolated Li Electrolyte infilling ratio Li metal batteries Lean electrolyte conditions

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Preparation and Performance Testing of SBS Modified Bitumens Reinforced with Halloysite and Sepiolite Nanoclays

Teknik Dergi/Technical Journal of Turkish Chamber of Civil E...

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Teknik Dergi/Technical Journal of Turkish Chamber of Civil Engineers 2022年第2期33卷 11661-11680页

作者： Uncu, Dilay Topal, Ali SeydiBeyoğlu, Mehmet Özgür Manisa Celal Bayar University Department of Civil Engineering Manisa Turkey Dokuz Eylül University Department of Civil Engineering İzmir Turkey İzmir Katip Çelebi University Department of Material Science and Engineering İzmir Turkey

In this study, halloysite and sepiolite nanoclays were used to reinforce SBS modified bitumens. The nanoclays used are different from the materials in the literature and have properties such as easy to find, economical and available from local sources. The mixing parameters were determined before production process. The polymer additive SBS was added into base bitumen at 3% and 5%, while the nanoclay additives were added into polymer modified bitumen at 2% and 4% ratios. The morphological structures were investigated under fluorescence microscope. Physical and rheological properties of the samples were compared. The phase separation cases were investigated by storage stability test. Furthermore, rutting performance of samples was measured with zero shear viscosity (ZSV) and multi stress creep recovery (MSCR) test methods. © 2022 Turkish Chamber of Civil Engineers. All rights reserved.

关键词： Phase separation

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Phase separation and domain crystallinity control enable open-air-printable highly efficient and sustainable organic photovoltaics

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InfoMat 2024年第3期6卷 131-143页

作者： Jie Lv Xiaokang Sun Hua Tang Fei Wang Guangye Zhang Liangxiang Zhu Jiaming Huang Qianguang Yang Shirong Lu Gang Li Frédéric Laquai Hanlin Hu Hoffmann Institute of Advanced Materials Shenzhen Polytechnic UniversityShenzhenthe People's Republic of China Shenzhen Institutes of Advanced Technology Chinese Academy of SciencesShenzhenthe People's Republic of China School of Materials Science and Engineering Xiangtan UniversityXiangtanthe People's Republic of China KAUST Solar Center Physical Sciences and Engineering Division(PSE)Materials Science and Engineering Program(MSE)King Abdullah University of Science and Technology(KAUST)ThuwalKingdom of Saudi Arabia College of New Materials and New Energies Shenzhen Technology UniversityShenzhenthe People's Republic of China Department of Electronic and Information Engineering The Hong Kong Polytechnic UniversityHong Kong SARthe People's Republic of China Department of Material Science and Technology Taizhou UniversityTaizhouthe People's Republic of China

Organic solar cells(OSCs)have emerged as a promising solution for sustainable energy production,offering advantages such as a low carbon footprint,short energy payback period,and compatibility with ***,the use of hazardous solvents continues to dominate the best-performing OSCs,mainly because of the challenges of controlling phase separation and domain crystallinity in *** this study,we combined the solvent vapor treatment of CS2 and thermal annealing to precisely control the phase separation and domain crystallinity in PM6:M-Cl and PM6:O-Cl systems processed with the eco-solvent *** method resulted in a maximum power conversion efficiency(PCE)of 18.4%,which is among the highest values reported for sustainable binary ***,the fabrication techniques were transferred from spin coating in a nitrogen environment to blade printing in ambient air,retaining a PCE of 16.0%,showing its potential for high-throughput and scalable *** addition,a comparative analysis of OSCs processed with hazardous and green solvents was conducted to reveal the differences in phase *** work not only underscores the significance of sustainability in OSCs but also lays the groundwork for unlocking the full potential of open-air-printable sustainable OSCs for commercialization.

关键词： open-air printable organic solar cells sustainability

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Dynamic Characteristics Study of a Newly Developed Suppression System 10

Dynamic Characteristics Study of a Newly Developed Suppressi...

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10th IEEE Open Conference of Electrical, Electronic and Information sciences, eStream 2023

作者： Giedraitis, Vytautas Kilikevičiene, Kristina Vainorius, Darius Kilikevičius, Arturas Vilnius Gediminas Technical University Department of Mechanical and Material Engineering Vilnius Lithuania Vilnius Gediminas Technical University Institute of Mechanical Science Vilnius Lithuania

ISBN: (纸本)9798350303834

The article presents experimental studies of a newly developed suppression system used in a firearm. Measurements of sound pressure and recoil of the developed suppression system are compared to typical suppressors available on the market. Usage of the suppression system demonstrated a recoil force decrease from 26.31 % to 27.23%. Respectively, sound pressure measurements demonstrated a decrease from 66.2% to 71% when using the newly developed suppression system. © 2023 IEEE.

关键词： recoil forces sound pressure suppression system

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