He Wang

Second Military Medical University

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i-10 index

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Co-Authors

Donghang Yan

Northwestern University

Zhanchen Cui

Jilin University

Zuosen Shi

Jilin University

Qingkui Yu

China Academy of Space Technology

Bo Mei

China Academy of Space Technology

Chunhong Li

Institute of Physics

Donghang Yan

Changchun Institute of Applied Chemistry

Shuang Cao

China Academy of Space Technology

Yao Li

Peking University

Yue Wang

Microsoft Research Asia (China)

Cooperative Institutions

Chinese Academy of Sciences

University of Chinese Academy of Sciences

China Academy of Space Technology

Jilin University

Institute of Atmospheric Physics

Northeast Forestry University

Tsinghua University

South China University of Technology

Changchun University of Science and Technology

Changchun Institute of Applied Chemistry

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Very low hysteresis organic thin-film transistors

Semiconductor Science and Technology (2009)

Chunhong Li Feng Pan Feng Zhu Song De He Wang

Very low hysteresis vanadyl-phthalocyanine/para-sexiphenyl thin-film transistors (TFTs) have been fabricated using benzocyclobutenone (BCBO) derivatives/tantalum pentoxide (Ta2O5)/BCBO triple gate dielectrics. The field effect mobility, on/off current ratio and threshold voltage of organic TFTs are 0.45 cm2 V−1 s−1, 3.5 × 104 and −6.8 V, respectively. To clarify the mechanism of hysteresis, devices with different dielectrics have been studied. It is found that the bottom BCBO derivatives (contact with a gate electrode) block the electron injection from a gate electrode to dielectrics. The top BCBO derivatives are also found to improve the properties of interface between the dielectrics and organic semiconductor. Then very low hysteresis devices are obtained.

Tantalum pentoxide

Hysteresis

Organic semiconductor

10.1088/0268-1242/24/8/085009

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Citations (10)

Design and Implementation of APS Test System for High-Speed and Large Array APS Device Based on Camera-Link

Shan Cong He Wang Dayu Zhang Mingchao Chang

This paper analyzed the working principle and interface character of the APS image sensor, and designed an APS test system for high-speed and large array APS device based on the Camera-Link interface. The system was made up of several subsystems as lighting control, pattern generator, image data gather and analyze. By using FPGA device, this paper designed the interface of APS to Camera-Link and solved the problem of mass data transfer during APS-testing. By analyzing the output of the APS pixels under different exposure time, this system could test the key specifications of APS device like saturation exposure time, saturation output curve and bad pixels.

Interface (matter)

Link (geometry)

10.1109/imccc.2018.00272

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Research on induction effects of two haploid inducers on different maize materials.

Yumi kexue (2011)

Jun Ma Liu Xin-fang He Wang Min Jiang

Inducer

Doubled haploidy

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Failure analysis of heavy ion-irradiated silicon carbide junction barrier Schottky diodes

Microelectronics Reliability (2024)

Shuang Cao Qingkui Yu Qianyuan Wang He Wang Yi Sun

Metal–semiconductor junction

10.1016/j.microrel.2024.115401

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Citations (1)

Dandelion Derived Nitrogen-Doped Hollow Carbon Host for Encapsulating Sulfur in Lithium Sulfur Battery

ACS Sustainable Chemistry & Engineering (2018)

Yan Song He Wang Qianli Ma Dan Li Wensheng Yu

Biomass derivative carbonaceous materials are extremely fascinating for developing advanced energy storage devices according to unique architecture. Here, inspired by dandelion with consecutive hollow channel, nitrogen-doped hollow carbon framework (NHCF) as sulfur host was obtained via a simple thermal calcination in ammonia atmosphere for lithium–sulfur battery. The NHCF can effectively confine polysulfides and electrochemical reaction within the hollow channel and expedite lithium ion diffusion and electrode transport through porous nitrogen-doped carbon rampart. With this strategy, a high-level active sulfur loading of 80% and high sulfur utilization can be realized. As a result, the NHCF/S delivered an advanced initial capacity of 950 mAh g–1 at the rate of 0.5 C with small capacity fading rates of 0.049% per cycle after 500 cycles. Additionally, an average reversible areal capacity of nearly 5 mAh cm–2 was realized under raised sulfur mass loading of 5.5 mg cm–2. This superior electrochemical energy storage property endows renewable biomass derived carbon host with promising potential for low-cost rechargeable battery application.

Carbon fibers

Lithium–sulfur battery

10.1021/acssuschemeng.8b04648

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Citations (77)

Infrared Target Interfering Device for SAM

Journal of Institute of Command and Technology (2003)

He Wang

Infrared target interfering device for SAM is primarily used to fire training for SAM in the field. It matches target drone, simulating plane spreading infrared bait to enhance the effect of simulating battlefield and to exercise the ability of capturing live target and holding the right time to fire missile to attack target in time. The whole program, the constitute and working principle of hardware and software flowing are introduced in the article.

Battlefield

Drone

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Facile Synthesis of Cellulose/ZnO Composite Film and Its Photocatalytic Activity

He Wang Yitao Yang Zeng Zhixiang Gang Wang Xuedong Wu

In order to overcome the aggregation and overlap of nanopowder photocatalysts, the cellulose /ZnO composite films with porous spherical ZnO crystals immobilized in cellulose matrix were prepared by an in-situ hydrothermal method. The morphologies, composition and crystal structure of the prepared composite films were characterized by scanning electron microscopy (SEM), energy dispersive spectrum analysis (EDS) and X-ray diffraction (XRD). The thermostability of the composite films and content of ZnO particles were calculated by thermogravimetric analysis (TG). The photocatalytic activities were evaluated by degrading methylene blue and determined by UV-vis spectrophotometer. The results show that the composite films are successfully prepared by this method with ZnO particles distributing uniformly on their surface when heated for 12 h. These ZnO particles are porous spherical and presented typically hexagonal wurtzite structure. Under UV light irradiation, the prepared cellulose/ZnO composite films exhibit excellent photocatalytic activity; the photocatalytic efficiency within 3 h can reach 90% with the amount of ZnO less than 6 mg.

Wurtzite crystal structure

Thermogravimetric analysis

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Design of 34410A High Speed Measurement Software Based on Hardware Timing Triggering

He Wang

This article uses C# language to design universal high-speed measurement software for the 34410A Digital Multimeter. The software adopts a measurement method based on hardware timing triggering, and the measurement speed is improved by 2 orders of magnitude compared to the software continuously triggering method. The software supports the setting of parameters such as voltage/current, range, resolution, sampling rate, and sampling points. The sampling rate setting takes into account the influence of hardware's inherent sampling delay. The test accuracy is better than 99.7%.

Multimeter

10.1109/imccc.2018.00287

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An FPGA-based SRAM Single Event Multiple-bit Upset Detection Method

He Wang Liang Zhang Yue Wang Qingkui Yu

This paper analyzes the designing of the existing SRAM single event upset (SEU) detection system and points out that the upset statistical method based on PC software is the system performance bottleneck. The paper aims at the bottleneck and presents a single event multiple-bit upset (MBU) detection system based on FPGA logic circuit, which has high detection speed, high data integrity, etc.

Upset

Single event upset

10.1109/icreed.2018.8905086

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Flexible Nanopaper Composed of Wood-Derived Nanofibrillated Cellulose and Graphene Building Blocks

JOURNAL OF RENEWABLE MATERIALS (2021)

Qing Li Ming Dai Xueren Qian Tian Liu Zhenbo Liu

Nanopaper has attracted considerable interest in the fields of films and paper research. However, the challenge of integrating the many advantages of nanopaper still remains. Herein, we developed a facile strategy to fabrica... | Find, read and cite all the research you need on Tech Science Press

10.32604/jrm.2021.011655

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Citations (1)