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recent Advances in Patterning Strategies for Full‑Color Perovskite Light‑Emitting diodes

Nano-Micro Letters 2024年第3期16卷 99-137页

作者： Gwang Heon Lee Kiwook Kim Yunho Kim Jiwoong Yang Moon Kee Choi Graduate School of semiconductor Materials and devices Engineering Center for Future Semiconductor Technology(FUST)Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea department of Energy Science and Engineering Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea Energy Science and Engineering research center Daegu Gyeongbuk Institute of Science and Technology(DGIST)Daegu 42988Republic of Korea department of Materials Science and Engineering Ulsan National Institute of Science and Technology(UNIST)Ulsan 44919Republic of Korea center for Nanoparticle research Institute for Basic Science(IBS)Seoul 08826Republic of Korea

Metal halide perovskites have emerged as promising light-emitting materials for next-generation displays owing to their remarkable material characteristics including broad color tunability,pure color emission with remarkably narrow bandwidths,high quantum yield,and solution *** recent advances have pushed the luminance efficiency of monochromic perovskite light-emitting diodes(PeLEds)to their theoretical limits,their current fabrication using the spincoating process poses limitations for fabrication of full-color *** integrate PeLEds into full-color display panels,it is crucial to pattern red–green–blue(rGB)perovskite pixels,while mitigating issues such as cross-contamination and reductions in luminous ***,we present state-of-the-art patterning technologies for the development of full-color ***,we highlight recent advances in the development of efficient ***,we discuss various patterning techniques of MPHs(i.e.,photolithography,inkjet printing,electron beam lithography and laserassisted lithography,electrohydrodynamic jet printing,thermal evaporation,and transfer printing)for fabrication of rGB pixelated *** patterning techniques can be classified into two distinct approaches:in situ crystallization patterning using perovskite precursors and patterning of colloidal perovskite *** review highlights advancements and limitations in patterning techniques for PeLEds,paving the way for integrating PeLEds into full-color panels.

关键词： Perovskite Light-emitting diode Full-color display High-resolution patterning Electroluminescence

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recyclable High-performance Carbon Fiber reinforced Epoxy Composites Based on dithioacetal Covalent Adaptive Network

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Chinese Journal of Polymer Science 2024年第10期42卷 1514-1524,I0011页

作者： Gui-Lian Shi Ting-Cheng Li dao-Hong Zhang Jun-Heng Zhang Key Laboratory of Catalysis and Energy Materials Chemistry of Ministry of Education&Hubei Key Laboratory of Catalysis and Materials Science Hubei R&D Center of Hyperbranched Polymers Synthesis and ApplicationsSouth-Central Minzu UniversityWuhan430074China State Key Laboratory of New Textile Materials and Advanced Processing Technologies Wuhan Textile UniversityWuhan430200China Ministry-of-Education Key Laboratory for the Green Preparation and Application of Functional Materials Hubei UniversityWuhan430062Chin

recycling of carbon fiber reinforced composites is important for sustainable development and the circular *** the use of dynamic chemistry,developing high-strength recyclable CFrPs remains a major challenge due to the mutual exclusivity between the dynamic and mechanical properties of ***,we developed a high-strength recyclable epoxy resin(HrEP)based on dynamic dithioacetal covalent adaptive network using diglycidyl ether bisphenol A(dGEBA),pentaerythritol tetra(3-mercapto-propionate)(PETMP),and vanillin epoxy resin(VEPr).At high temperatures,the exchange reaction of thermally activated dithioacetals accelerated the rearrangement of the network,giving it significant reprocessing ***,HrEP exhibited excellent solvent resistance due to the increased cross-linking *** this high-strength recyclable epoxy resin as the matrix and carbon fiber modified with hyperbranched ionic liquids(HBP-AMIM+PF6-)as the reinforcing agent,high performance CFrPs were successfully *** tensile strength,interfacial shear strength(IFSS)and interlaminar shear strength(ILSS)of the optimized formulation(HrEP20/CF-HBPPF6)were 1016.1,70.8 and 76.0 MPa,*** addition,the CFrPs demonstrated excellent solvent and acid/*** CFrPs could completely degrade within 24 h in dMSO at 140℃,and the recycled CF still maintained the same tensile strength and ILSS as the original after multiple degradation cycles.

关键词： Epoxy resin Hyperbranched ionic liquid recycling Carbon fiber Composites

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Synergy of heterogeneous Co/Ni dual atoms enabling selective C-O bond scission of lignin coupling with in-situ N-functionalization

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Journal of Energy Chemistry 2024年第5期92卷 16-25页

作者： Baoyu Wang Jinshu Huang Hongguo Wu Ximing Yan Yuhe Liao Hu Li National Key Laboratory of Green Pesticide Key Laboratory of Green Pesticide&Agricultural BioengineeringMinistry of EducationState-Local Joint Laboratory for Comprehensive Utilization of BiomassCollege of Pharmacy&Center for R&D of Fine ChemicalsGuizhou UniversityGuiyang 550025GuizhouChina Guangxi Key Laboratory of Green Chemical Materials and Safety Technology Beibu Gulf UniversityQinzhou 535011GuangxiChina Guangzhou Institute of Energy Conversion Chinese Academy of SciencesGuangzhou 510640GuangdongChina

Selective cleavage of Csp^(2)-OCH_(3)bond in lignin without breaking other types of C-O bonds followed by N-functionalization is fascinating for on-purpose valorization of ***,a Co/Ni-based dual-atom catalyst CoNidA@NC prepared by in-situ evaporation and acid-etching of metal species from tailor-made metal–organic frameworks was efficient for reductive upgrading of various lignin-derived phenols to cyclohexanols(88.5%–99.9%yields),which had ca.4 times higher reaction rate than the single-atom catalyst and was superior to state-of-the-art heterogeneous *** synergistic catalysis of Co/Ni dual atoms facilitated both hydrogen dissociation and hydrogenolysis steps,and could optimize adsorption configuration of lignin-derived methoxylated phenols to further favor the Csp^(2)-OCH_(3)cleavage,as elaborated by theoretical ***,the CoNi_(dA)@NC catalyst was highly recyclable,and exhibited excellent demethoxylation performance(77.1%yield)in real lignin monomer *** in-situ cascade conversion processes assisted by dual-atom catalysis,various high-value N-containing chemicals,including caprolactams and cyclohexylamines,could be produced from lignin.

关键词： Biomass conversion Heterogeneous catalysis Lignin dual-atom catalyst Selective C-ocleavage

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Hexamerin and allergen are required for female reproduction in the American cockroach,Periplaneta americana

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Insect Science 2024年第1期31卷 186-200页

作者： Shiming Zhu Xiaoyi Chen Sishi Xia Qin Li Ziqi Ye Shaoting Zhao Kexin Liu Fangfang Liu Guangdong Provincial Key Laboratory of Insect developmental Biology and Applied Technology Institute of Insect Science and TechnologyInstitute of Insect Science and Technology&School of Life SciencesSouth China Normal UniversityGuangzhouChina Guangmeiyuan r&d center Guangdong Provincial Key Laboratory of Insect Developmental Biology and Applied TechnologySouth China Normal UniversityMeizhouGuangdong ProvinceChina Guangdong Laboratory for Lingnan Modern Agriculture South China Agricultural UniversityGuangzhouChina

reproduction is of great importance for the continuation of the *** insects,the fat body is the major tissue for nutrient storage and involved in vitellogenesis,which is essential for female ***,2 proteins,hexamerin and allergen,were separated from the fat bodies of adult female American cockroaches(Periplaneta americana)and identified as storage proteins,encoding for 733 amino acids with molecular weight of 87.88 kda and 686 amino acids with molecular weight of 82.18 kda,*** encoding genes of these 2 storage proteins are mainly expressed in the fat *** interference-mediated knockdown of Hexamerin and Allergen in the early stage of the first reproductive cycle in females suppressed vitellogenesis and ovarian maturation,indicating that these storage proteins are involved in controlling ***,the expression of Hexamerin and Allergen was repressed by knockdown of the juvenile hormone(JH)receptor gene Met and the primary response gene Kr-h1,and was induced by methoprene,a JH analog,in both in vivo and in vitro ***,we have determined that hexamerin and allergen are identified as storage proteins and play an important role in promoting female reproduction in the American *** expression of their encoding genes is induced by JH *** data reveal a novel mechanism by which hexamerin and allergen are necessary for JH-stimulated female reproduction.

关键词： fat body juvenile hormone ovary reproduction storage protein vitellogenesis

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diabetes and pulmonary infection:how hyperglycaemia shapes the immune system

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Signal Transduction and Targeted Therapy 2024年第4期9卷 1245-1246页

作者： Christian Herder Michael roden Nicolas Venteclef Institute for Clinical diabetology German Diabetes CenterLeibniz Center for Diabetes Research at Heinrich Heine University Düsseldorf40225DüsseldorfGermany German center for diabetes research(dZd) Partner Düsseldorf85764München-NeuherbergGermany department of Endocrinology and diabetology Medical Faculty and University Hospital DüsseldorfHeinrich Heine University Düsseldorf40225DüsseldorfGermany Institut Necker-Enfants Malades(INEM) UniversitéParis CitéINSERM UMR-S1151CNRS UMR-S8253ParisFrance

In a recent study published in Nature,Nobs and colleagues aimed to identify novel mechanisms that may explain why diabetes is associated with an increased susceptibility to viral respiratory *** analyses revealed a central role of lung dendritic cells(dC)which exhibited several functional defects induced by hyperglycaemia and consequently result in impaired antiviral immune responses.

关键词： impaired lung respiratory

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Effect of Ni content on the weldability of middle-chromium hyperpure ferritic stainless steels 00Cr21Ti

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Baosteel Technical research 2024年第2期18卷 19-26页

作者： ZHANG Xinbao WANG Zhibin SUN Mingshan YAN Zhifeng WANG Wenxian r&d center for Stainless Steel Research InstituteChina Baowu Steel Group CorporationTaiyuan 030003China School of Materials Science and Engineering Taiyuan University of TechnologyTaiyuan 030024China

Excellent weldability substantially contributes to the intrinsic quality of steels,while appropriate chemical composition plays a primary role in the essential weldability of *** poor weldability of ferritic stainless steels could be improved through modification with minor alloy elements while minimally increasing the ***,studying the effect of minor alloy elements on the weldability of steels is of considerable *** this study,several steels of middle-chromium hyperpure ferritic stainless 00Cr21Ti with different Ni content(0.3%,0.5%,0.8%,and 1.0%)were developed,and their weldabilities of butt joint samples welded using the metal inert gas welding process,including the influence of welded joints on the microstructure,tensile performance,corrosion resistance,and fatigue property,were *** show that the steels with w(Ni)≥0.8%exhibit excellent mechanical properties compared with those with low-Ni content steels,further,their impact toughness at normal atmospheric temperature meets the industrial application standard and the fatigue property is similar to that of 304 austenitic stainless ***,results show that the corrosion resistance of all the samples is almost at the same *** results acquired in this study are supposed to be useful for the optimization of the chemical composition of stainless steels aiming to improve weldability.

关键词： 00Cr21Ti ferritic stainless steel SUS443 welded joint mechanical properties fatigue property Ni content

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Schur Complement Based Preconditioners for Twofold and Block Tridiagonal Saddle Point Problems

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Communications in Mathematical research 2024年第2期40卷 214-244页

作者： Mingchao Cai Guoliang Ju Jingzhi Li department of Mathematics Morgan State UniversityBaltimoreMD 21251USA. Solid State r&d department Shenzhen Tenfong Co.Ltd.Shenzhen 518055P.R.China. department of Mathematics Southern University of Science and TechnologyShenzhen 518055P.R.China.

In this paper,we consider using Schur complements to design preconditioners for twofold and block tridiagonal saddle point *** type of the preconditioners are based on the nested(or recursive)Schur complement,the other is based on an additive type Schur complement after permuting the original saddle point *** analyze different preconditioners incorporating the exact Schur *** show that some of them will lead to positively stable preconditioned systems if proper signs are selected in front of the Schur *** positive-stable preconditioners outperform other preconditioners if the Schur complements are further approximated *** experiments for a 3-field formulation of the Biot model are provided to verify our predictions.

关键词： Schur complement block tridiagonal systems positively stable preconditioners routh-Hurwitz stability criterion.

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Synergism of solar-driven interfacial evaporation and photo-Fenton Cr(Ⅵ) reduction by sustainable Bi-MOF-based evaporator from waste polyester

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Journal of Energy Chemistry 2024年第7期94卷 527-540页

作者： Zifen Fan Jie Liu Huajian Liu Lijie Liu Yan She Xueying Wen Huiyue Wang Guixin Hu ran Niu Jiang Gong Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of EducationHubei Key Laboratory of Material Chemistry and Service FailureHubei Engineering Research Center for Biomaterials and Medical Protective MaterialsSemiconductor Chemistry CenterSchool of Chemistry and Chemical EngineeringHuazhong University of Science andTechnologyWuhan430074HubeiChina

The integration of interfacial solar steam generation and photocatalytic degradation technology has pro-vided a promising platform to simultaneously produce freshwater and degrade ***,con-structing low-cost,multi-functional evaporators for treating Cr(Ⅵ)-polluted water remains challenging,and the synergistic mechanism on Cr(Ⅵ)reduction is ***,we propose the combined strategy of ball milling and solution mixing for the sustainable production of Bi-MOF microrod from waste poly(ethylene terephthalate),and construct Bi-MOF-based solar evaporators for simultaneous photo-Fenton Cr(Ⅵ)reduction and freshwater ***,the evaporator comprised of Bi-MOF microrod and graphene nanosheet possesses high light absorption,efficient photothermal conversion,and good hydro-philic *** to the advantages,the hybrid evaporator exhibits the evaporation rate of 2.16 kg m^(-2) h^(-1) and evaporation efficiency of 87.5%under 1 kW m^(-2) of *** integrating with photo-Fenton reaction,the Cr(Ⅵ)reduction efficiency is 91.3%,along with the reaction kinetics of 0.0548 min^(-1),surpassing many advanced *** the outdoor freshwater production and Cr(Ⅵ)reduction,the daily accumulative water yield is 5.17 kg m^(-2) h^(-1),and the Cr(Ⅵ)reduction efficiency is 99.9%.Furthermore,we prove that the localization effect derived from the interfacial solar-driven evap-oration enhances H_(2)O_(2) activation for the photo-Fenton reduction of Cr(Ⅵ).Based on the result of density functional theory,Bi-MOF microrod provides rich active centers for H_(2)O_(2) activation to produce active sites such as e-or-O_(2).This study not only proposes a new strategy to construct multi-functional solar evaporators for freshwater production and catalytic reduction of pollutants,but also advances the chem-ical upcycling of waste polyesters.

关键词： Interfacial solar steam generation Cr(VI)reduction Photo-Fenton reaction Metal-organic framework Waste plastic upcycling

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A highly sensitive ratiometric near-infrared nanosensor based on erbium-hyperdoped silicon quantum dots for iron(Ⅲ) detection

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Journal of semiconductors 2024年第8期45卷 49-58页

作者： Kun Wang Wenxuan Lai Zhenyi Ni deren Yang Xiaodong Pi State Key Laboratory of Silicon and Advanced semiconductor Materials&School of Materials Science and Engineering Zhejiang UniversityHangzhou 310027China Institute of Advanced semiconductors&Zhejiang Provincial Key Laboratory of Power semiconductor Materials and devices ZJ-UHangzhou Global Scientific and Technological Innovation CenterZhejiang UniversityHangzhou 311215China

ratiometric fluorescent detection of iron(Ⅲ)(Fe^(3+))offers inherent self-calibration and contactless analytic ***,realizing a dual-emission near-infrared(NIr)nanosensor with a low limit of detection(LOd)is rather *** this work,we report the synthesis of water-dispersible erbium-hyperdoped silicon quantum dots(Si Qds:Er),which emit NIr light at the wavelengths of 810 and 1540 nm.A dual-emission NIr nanosensor based on water-dispersible Si Qds:Er enables ratiometric Fe^(3+)detection with a very low LOd(0.06μM).The effects of pH,recyclability,and the interplay between static and dynamic quenching mechanisms for Fe^(3+)detection have been systematically *** addition,we demonstrate that the nanosensor may be used to construct a sequential logic circuit with memory functions.

关键词： erbium-hyperdoped silicon quantum dots dual-emission near-infrared nanosensor Fe^(3+)detection sequential logic circuit

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A-3 dBm rF transmitter front-end for 802.11g application

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Journal of semiconductors 2013年第4期34卷 69-75页

作者：赵锦鑫颜峻石寅 Suzhou-CAS semiconductor Integration r&d center

A 2.4 GHz, direct-conversion rF transmitter front-end with an up converter and PA driver is fabricated in a 0.13/zm CMOS process for the reliable transmission of 54 Mb/s OFdM signals. The front-end output power is -3 dBm while the corresponding EVM is -27 dB which is necessary for the 802.11g standard of EVM at-25 dB. With the adopted gain control strategy the output power changes from -14.3 to -3.7 dBm with every step 0.8 dB （20%） which covers the gain variation due to working temperature and process. A power detector indicates the output power and delivers a voltage to the baseband to control the output power.

关键词： 802.11 g rF transmitter front-end up converter rFVGA PA driver EVM

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