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Science China Chemistry 2025年

作者： Haoyue Liang Xingguo Zhong Guxin Huang Wenpan Liu Yao Liu Shuhao Wang Deyu Wang Hao Liu Hao Wang tianyou zhai Huiqiao Li State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huazhong University of Science and Technology Shenzhen Research Institute of Huazhong University of Science and Technology Key Laboratory of Optoelectronic Chemical Materials and Devices (Ministry of Education) School of Optoelectronic Materials &Technology Jianghan University Centre for Clean Energy Technology Faculty of Science University of Technology Sydney Yichang Brunp Recycling Technology Co. Ltd.

Li3VO4has been a promising insertion anode material for Li-ion batteries,which has high theoretical capacity (up to～600 mAh g-1) and safe Li insertion voltage （0.5–1 V ***/Li+）.However,the low initial Coulombic efficiency （ICE） has always been the bottleneck limiting its ***,we propose a facile pre-lithiation method to controllably elevate the ICE by the post-treatment of the prepared Li3VO4composite electrode based on an immersion *** this process,the whole electrode was immersed in the liquid Li source,via which the ICE of the Li3VO4electrode can be controllably elevated from 80%to over 100%within 5 min of *** than the traditional powder treatment for pre-lithiation,this process we proposed minimizes the impact of pre-lithiation on the battery assembly ***,we further investigated the effect of this pre-lithiation process on the functional components in the *** the first time the ICE of Li3VO4electrode was elevated to 100%.As a result,the initial reversible capacity of LiFePO4||Li3VO4full cell was improved from 44.0 to146.3 m Ah g-1,demonstrating the feasibility and great potential of the process.

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Ultrathin inorganic-organic solid-state electrolyte reinforced by a prefiberized LAGP continuous skeleton

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Science China Materials 2025年第1期68卷 199-206页

作者： Shiya Li Shuhao Wang Gaofeng Du Jianing Liang Zhaoming Tong Yanming Cui Jiu Lin Xiaoxiong Xu Xizheng Liu tianyou zhai Huiqiao Li State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhan 430074China Key Laboratory of Optoelectronic Chemical Materials and Devices(Ministry of Education) School of Optoelectronic Materials&TechnologyJianghan UniversityWuhan 430056China Zhejiang Funlithium New Energy Technology Co. Ltd.Ningbo 315201China

Inorganic-organic composite electrolyte is proved an effective way to enhance the overall performance of the ***,simply combining powder fillers with polymers is not sufficient for the application of composite *** this work,we designed an ultrathin organic-inorganic composite solid electrolyte with high mechanical strength and ionic conductivity,in which the inorganic Li1.5Al0.5Ge1.5(PO_(4))3(LAGP)solid electrolyte is prefiberized into a three-dimensional nanofiber network to serve as a self-supporting skeleton for the polyethylene oxide(PEO)*** continuous skeleton structure not only significantly improves the mechanical strength of the PEO-based electrolyte,but also forms a continuous lithium-ion conduction path,promoting the rapid migration of lithium *** fiber-reinforced composite electrolyte has an ionic conductivity of 8.27×10^(−4) S cm^(-1) at 60°C and a tensile strength of up to 4.29 ***,it exhibits a reduced overpotential and stable long-term cycling performance over 1700 h when used in Li/Li symmetric *** LiFePO_(4)(LFP)|Li cell assembled with the fiber-reinforced composite electrolyte also delivers a specific capacity of about 142 mAh g^(−1) over 300 cycles at 0.5 C and maintains good cycling *** work provides a novel idea for designing the next generation of safe and reliable organic-inorganic composite solid-state electrolyte membranes.

关键词： solid-state lithium metal batteries solid-state electrolytes polymer electrolytes LAGP structure design ultra-thin electrolyte membrane

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2D Cadmium Chalcogenides for Optoelectronics

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Chemical Research in Chinese Universities 2020年第4期36卷 493-503页

作者： JIN Bao zhai tianyou State Key Laboratory of Material Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074P.R.China

Two-dimensional(2D)cadmium chalcogenides ha ve triggered worldwide interests due to their unique me rits in both structure and physical properties,including thickness-dependent bandgaps,narrow emission line widths high intrinsic absorption coefficient and large absorption cross sections,etc..rendering their great potential for next-generation electronics and optoelectronics *** this article,the progress of 2D cadmium chalcogenides in he past few vears is comprehensivelv *** first discussed several synthetic strategies for various 2D cad mium ***,their optoelectronic applications in photodetectors,lasers,LEDs,and piezoelectric de-vices are summarized and commented in ***,a brief conclusion of the article and the future prospects of the 2D cadmium chalcogenides are provided。

关键词： 2D cadiniimi chalcogenide Synthesis Optoelectronic device Photodetector

Wafer-scale vertical van der Waals heterostructures

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InfoMat 2021年第1期3卷 3-21页

作者： Lixin Liu tianyou zhai State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanP.R.China

Wafer-scale van der Waals heterostructures(vdWHs),benefitting from the rich diversity in materials available and stacking geometry,precise controllability in devices structure and performance,and unprecedented potential in practical application,have attracted considerable attention in the field of twodimensional(2D)*** article reviews the state-of-the-art research activities that focus on wafer-scale vdWHs and their(opto)electronic *** begin with the preparation strategies of vdWHs with wafer size and illustrate them from four key aspects,that is,mechanical-assembly stack,successive deposition,synchronous evolution,and seeded *** discuss the fundamental principle,underlying mechanism,advantages,and disadvantages for each *** will then review the applications of large-area vdWHs based devices in electronic,optoelectronic and flexible devices field,unveiling their promising potential for practical ***,we will demonstrate the challenges they face and provide some viable solutions on waferscale heterostructure synthesis and device fabrication.

关键词： 2D materials optoelectronic devices van der Waals heterostructures wafer-scale

Overcome Debye Length Limitations for Biomolecule Sensing Based on Field Effective Transistors

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Chinese Journal of Chemistry 2021年第4期39卷 999-1008页

作者： Zhi Zheng Hongyuan Zhang tianyou zhai Fan Xia Engineering Research Center of Nano-Geomaterials of Ministry of Education Faculty of Materials Science and ChemistryChina University of GeosciencesWuhanHubei430074 China State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Science and EngineeringHuazhong University of Science and TechnologyWuhanHubei 430074Chino

Biosensors based on field effective transistor(FET)have aroused tremendous attention in the past few years owning to their huge application in drug discovery,disease diagnosis and environmental *** FET biosensors possess small volume,high sensitivity at ultra-low concentration,considerable mechanical strength,as well as excellent stability in solution,which plays a vital role in the point of care testing(POCT)*** advances have summarized some progress involved in the improvement of morphology and structure of channel materials,the functionalization of organic molecule,the influence of device operation and sensing environment on the detecting ***,for FET biosensors,the charge screening phenomena were inevitable in the solution,which seriously degrade the device *** this article,we summarize recent advances to overcome debye length limitations for biomolecule sensing based on *** will firstly describe the charge screening mechanism,then focous on the strategy to overcome charge screening,including synthesizing special channel materials with crumpled morphology,designing aptamer binding mode,and modulating device ***,we discuss the major challenges and perspectives about overcoming debye length limitations of FET *** summaries provide further insights to realize real-time,lable-free,high-sensitivity FET sensors for medical healthcare.

关键词： Debye length Interactions Field effective transistors Biosensors Biomolecule

Lead-free perovskites for X-ray detecting

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Science Bulletin 2017年第22期62卷 1491-1493页

作者： Fuwei Zhuge Peng Luo tianyou zhai School of Materials Science and En~neering Huazhong University of Sdence and Technology Wuhan 430074 China

X-ray detection is of great importance for computed tomography scanning,security inspection,non-destructive testing of industrial products and other detection applications[1,2].Due to the potential cancer risk caused by X-ray inspection,there is always room to achieve X-ray detectors with even better sensitivity and detection *** are two available approaches detecting X-rays,the first is indirect conversion using scintillators to convert X-ray photons into light and then a photodiode to

关键词： Lead-free perovskites for X-ray detecting Cs CdZnTe

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Vapor-Phase Precise-Synthesis of 2D Inorganic Materials for Optoelectronics

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Chinese Journal of Chemistry 2023年第7期41卷 825-834页

作者： Xing Zhou Fuwei Zhuge Han Wang tianyou zhai State Key Laboratory of Materials Processing and Die&Mould Technology School of Materials Sciences and EngineeringHuazhong University of Science and TechnologyWuhanHubei430074 China

Comprehensive Summary 2D materials have attracted intensive attention due to their unique electrical and optical properties associated with their strictly defined low *** provide a wide range of basic building blocks for future electronics and *** chemical vapor deposition(CVD)has been proposed to be efficient to realize the controllable thickness,scalable size,which are necessary for both industrial applications and fundamental ***,we share our research works to realize the controllable growth of 2D *** found that stable growth microenvironment can regulate the growth of 2D ***,we developed near-steady source supply,space-confined,and additive-assisted passivated growth methods to solve the problem of unstable growth environment caused by uneven source and mass ***,we developed several strategies to precisely control the parity,separation,and transport of the carriers in 2D materials including fabricating defect-free interface via van der Waals dielectrics,modulating the parity of carriers via ferroelectric-field,and the separation of carriers via band *** future development,we highlight the opportunities and challenges inthis field.

关键词： 2D materials Heterostructures Chemical vapor deposition Photoelectric performances Nanostructures photodetectors

Chemical-vapor-deposition-grown 2D transition metal dichalcogenides:A generalist model for engineering electrocatalytic hydrogen evolution

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Nano Research 2023年第1期16卷 101-116页

作者： Yang Zhao Jiazhao Huang Jianqiang Chen Youwen Liu tianyou zhai State Key Laboratory of Materials Processing and Die&Mould Technology and School of Materials Science and EngineeringHuazhong University of Science and Technology(HUST)Wuhan 430074China

Two-dimensional(2D)transition metal dichalcogenides(TMDs)have proved to possess exceptional catalytic performance for hydrogen evolution and are considered to be an appropriate substitute for commercial Pt-based ***,chemical vapor deposition(CVD)is an extremely important technique for acquiring controllable and high-purity TMDs for electrocatalysis and modern electronic ***,researchers have made significant achievements in synthesizing TMDs used for electrocatalytic hydrogen evolution by CVD ranging from dynamic mechanism exploration to performance *** this review,we present the recent progress based on electrocatalytic hydrogen evolution implemented by CVDgrowth TMDs nanosheets and unveil the structural–activity ***,in synthesis,diverse factors covering precursor,substrate,temperature settings,and atmosphere will affect the quality and surface morphology of ***,we present the current research status of the CVD-grown 2D TMDs for engineering electrocatalytic hydrogen evolution,including intrinsic performance exploring,morphology engineering,composition adjusting,phase engineering,and vertically-oriented structure ***,the future prospects and challenges of CVD in 2D TMDs electrocatalysis are provided.

关键词： chemical vapor deposition two-dimensional(2D)transition metal dichalcogenides electrochemistry hydrogen evolution on-chip electrocatalysis

Achieving highly uniform two-dimensional PbI2 flakes for photodetectors via space confined physical vapor deposition

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Science Bulletin 2017年第24期62卷 1654-1662页

作者： Yaguang Wang Lin Gan Junnian Chen Rui Yang tianyou zhai State Key Laboratory of Materials Processing and Die & Mould Technology School of Materials Science and Engineering Huozhong University of Science and Technology Wuhan 430074 China

Two-dimensional(2D) PbI_2 flakes have been attracting intensive attention as one potential candidate for the modern optoelectronics. However, suffered from the instability of kinetics-driven growth, the fabricated 2D PbI_2 flakes have a wide dimensional distribution even under the same conditions. Herein, a novel facile space confined physical vapor deposition(PVD) process is provided to synthesize uniform triangle PbI_2 flakes with high quality. The confined space provides a relatively stable growth environment that renders more control on the growth kinetics, leading to highly uniform triangle PbI_2 flakes with the average size of 5 mm and thickness of 17 nm. Moreover, as-fabricated PbI_2-based photodetectors show promising stable and flexible optoelectronic performances to 470 nm light, including high responsivity(0.72 AW^(-1)), large on/off ratio up to 900, fast photoresponse speed(rise time of 13.5 ms and decay time of 20 ms) and high detectivity(1.04×10^(10) Jones). The well-controllable growth of the uniform triangle PbI_2 flakes and the detailed exploration of their optoelectronic properties are particularly valuable for their further practical applications.

关键词： Two-dimensional material PbI2 Space confined physical vapor deposition Homogeneity Photodetector

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Space-confined vapor deposition synthesis of two dimensional materials

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Nano Research 2018年第6期11卷 2909-2931页

作者： Shasha Zhou Lin Gan Deli Wang Huiqiao Li tianyou zhai School of Materials Science and Engineering School of Chemistry and Chemical Engineering Huazhong University of Science and Technology Wuhan 430074 China

Two dimensional （2D） nanomaterials are promising fundamental building blocks for use in the next-generation semiconductor industry due to their unique geometry and excellent （opto）-electronic properties. However, large scale high quality fabrication of 2D nanomaterials remains challenging. Thus, the development of controllable fabrication methods for 2D materials is essential for their future practical application. In this review, we will discuss the importance of the space-confined vapor deposition strategy in the controllable fabrication of 2D materials and summarize recent progress in the utilization of this strategy for the synthesis of novel materials or structures. Using this method, various high quality ultrathin 2D materials, including large-area graphene and boron nitride, ReS2/ReSe2 HfS2, pyramid-structured multilayer MoS2, and the topological insulators BiaSe3 and BiaTe3, have been successfully obtained. Additionally, by utilizing van der Waals epitaxy growth substrates such as mica or other 2D materials, patterned growth of 2D nanomaterials can be easily achieved via a surface-induced growth mechanism. Finally, we provide a short prospect for future development of this strategy.

关键词： two dimensional vapor deposition space confinement transition metaldichalcogenides