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980 results on '"Bai, Jintao"'

202. 线性啁啾光纤光栅局部点加热光谱特性的研究

Author

任丽 Ren Li, 孙博 Sun Bo, 马丽 Ma Li, 冯晓强 Feng Xiaoqiang, and 白晋涛 Bai Jintao

Subjects
Space and Planetary Science, Aerospace Engineering, Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics
Published
2022

205. 基于环形器的线形腔可控掺镱自扫光纤激光器

Author

左振忠 Zuo Zhenzhong, 王凯乐 Wang Kaile, 黄先明 Huang Xianming, 陈浩伟 Chen Haowei, 陆宝乐 Lu Baole, and 白晋涛 Bai Jintao

Subjects
Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2022

240. Development of nanostructures based on CW-laser

Author

Wang Shuang, Li Hongfu, Bai Jintao, Zhang Chen, Feng Xiaoqiang, Wang Kaige, Fan Lianbin, Zhao Wei, and Sun Dan

Subjects
Nanostructure, Materials science, business.industry, Optoelectronics, Cw laser, business, Atomic and Molecular Physics, and Optics
Published
2017

241. 3D Graphene Networks Encapsulated with Ultrathin SnS Nanosheets@Hollow Mesoporous Carbon Spheres Nanocomposite with Pseudocapacitance-Enhanced Lithium and Sodium Storage Kinetics

Author

Zelei Zhang, Bai Jintao, Gang Wang, Beibei Wang, Hui Wang, and Shipeng Zhang

Subjects
Nanocomposite, Materials science, Graphene, Electrochemical kinetics, Oxide, chemistry.chemical_element, 02 engineering and technology, General Chemistry, 010402 general chemistry, 021001 nanoscience & nanotechnology, Electrochemistry, 01 natural sciences, Pseudocapacitance, 0104 chemical sciences, law.invention, Anode, Biomaterials, chemistry.chemical_compound, Chemical engineering, chemistry, law, General Materials Science, Lithium, 0210 nano-technology, Biotechnology
Abstract

The lithium and sodium storage performances of SnS anode often undergo rapid capacity decay and poor rate capability owing to its huge volume fluctuation and structural instability upon the repeated charge/discharge processes. Herein, a novel and versatile method is described for in situ synthesis of ultrathin SnS nanosheets inside and outside hollow mesoporous carbon spheres crosslinked reduced graphene oxide networks. Thus, 3D honeycomb-like network architecture is formed. Systematic electrochemical studies manifest that this nanocomposite as anode material for lithium-ion batteries delivers a high charge capacity of 1027 mAh g-1 at 0.2 A g-1 after 100 cycles. Meanwhile, the as-developed nanocomposite still retains a charge capacity of 524 mAh g-1 at 0.1 A g-1 after 100 cycles for sodium-ion batteries. In addition, the electrochemical kinetics analysis verifies the basic principles of enhanced rate capacity. The appealing electrochemical performance for both lithium-ion batteries and sodium-ion batteries can be mainly related to the porous 3D interconnected architecture, in which the nanoscale SnS nanosheets not only offer decreased ion diffusion pathways and fast Li+ /Na+ transport kinetics, but also the 3D interconnected conductive networks constructed from the hollow mesoporous carbon spheres and reduced graphene oxide enhance the conductivity and ensure the structural integrity.

Published
2019

243. Preparation and investigation of graphene-coated lead-free glass frit based on amino dispersant for improved adhesion and lower temperature point

Author

Bai Jintao, Bo Zhou, Gang Wang, Hui Wang, Yangdong Cai, Shenghua Ma, Chunting Cui, and Ting Nie

Subjects
Materials science, Graphene, Scanning electron microscope, Mechanical Engineering, Alloy, 02 engineering and technology, General Chemistry, Adhesion, engineering.material, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, Dispersant, 0104 chemical sciences, Electronic, Optical and Magnetic Materials, law.invention, Transmission electron microscopy, law, Electrode, Materials Chemistry, engineering, Electrical and Electronic Engineering, Composite material, 0210 nano-technology, Frit
Abstract

Lead-free glass frit acts as an crucial part of the front contact electrodes of solar cells. In this study, we have developed a new type of glass frit through a hydrothermal reaction to coat graphene and solved the problem of graphene agglomeration by using amino dispersant. When the raw glass, graphene-coated glass, and new glass frit are tested under the same conditions for their resistance and characteristic temperature points, their resistance and temperature is significantly reduced. Through scanning electron microscopy (SEM) and Transmission Electron Microscope (TEM) characterization, it is further found that there are a large number of conductive alloy spheres and graphene at the interface. This result is considered to be the reason that can improve the performance of solar cells. This work has important guiding significance for the development of new high-conductivity glass frit for commercial solar cells in the future.

Published
2021

245. 基于环形滤波器可调谐单频光纤激光器的研究

Author

Ding Jianyi, Chen Haowei, and Bai Jintao

Subjects
Optics, Materials science, business.industry, Filter (video), Fiber laser, Fiber ring, Electrical and Electronic Engineering, business, Atomic and Molecular Physics, and Optics
Published
2021

246. Passively Q-Switched Erbium-Doped Fiber Laser Based on HfSe2 Saturable Absorber

Author

陆宝乐 Lu Bao-le, 陈浩伟 Chen Hao-wei, 白晋涛 Bai Jintao, and 张凯龙 Zhang Kailong

Subjects
Materials science, business.industry, Optoelectronics, Saturable absorption, business, Erbium doped fiber lasers, Atomic and Molecular Physics, and Optics, Electronic, Optical and Magnetic Materials
Published
2020

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