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Zhou S, Chen D, Du B, Wang P, Wang X, Zhu W, Liu S, Xiao P, Chen J. Study of the in situ test setup and analysis methods for self-healing properties of metallized film capacitors. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2024; 95:045105. [PMID: 38563717 DOI: 10.1063/5.0194057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/25/2023] [Accepted: 03/14/2024] [Indexed: 04/04/2024]
Abstract
Metallized film capacitors (MFCs) are widely used in the power electronics industry due to their unique self-healing (SH) capability. SH performance is an essential assessment for MFC reliability verification in industrial production. The SH phenomenon of metallized films usually occurs rapidly in a very short period, and its real-time evolution details are often difficult to capture and analyze. In this paper, a test system for the SH performance of metallized films for capacitors was constructed. The system consists of three components: a voltage-current characteristic testing and current pulse capture device, a microscopic image real-time acquisition device, and an integrated analysis processing device. Through the voltage-current characteristic testing and current pulse capture device, the electrical parameters of the SH point, such as SH times, breakdown field strength, SH current, and SH energy, are obtained; through a microscopic image real-time acquisition device, the real-time spatial positioning of the SH point was obtained, and the interconnection between the morphology of the SH point and the electrical properties was established. The relationship between the SH point and the temperature distribution was further established using thermal imaging technology, which lays the foundation for a thorough and timely assessment and analysis of the failure mechanism and the real-time evolution of the metallized film SH process. This significantly improves the effectiveness of SH property research.
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Affiliation(s)
- Shaopeng Zhou
- School of Electronic and Information Engineering, Foshan University, Foshan 528000, China
| | - Deping Chen
- School of Materials and Environmental Engineering, Chengdu Technological University, Chengdu 611730, China
| | - Baoyu Du
- Sheng Ye Electric Co., Ltd., Foshan 528300, China
| | - Pan Wang
- Sheng Ye Electric Co., Ltd., Foshan 528300, China
| | - Xiucai Wang
- School of Materials Science and Hydrogen Energy, Foshan University, Foshan 528000, China
| | - Wenbo Zhu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
| | - Si Liu
- School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528000, China
| | - Peng Xiao
- School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528000, China
| | - Jianwen Chen
- School of Electronic and Information Engineering, Foshan University, Foshan 528000, China
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Properties and working mechanism of Sn-doped Li0.33La0.56TiO3-based all-solid-state supercapacitor. J Solid State Electrochem 2023. [DOI: 10.1007/s10008-023-05384-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
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Sacco LN, Vollebregt S. Overview of Engineering Carbon Nanomaterials Such As Carbon Nanotubes (CNTs), Carbon Nanofibers (CNFs), Graphene and Nanodiamonds and Other Carbon Allotropes inside Porous Anodic Alumina (PAA) Templates. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:260. [PMID: 36678014 PMCID: PMC9861583 DOI: 10.3390/nano13020260] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 01/05/2023] [Accepted: 01/06/2023] [Indexed: 06/17/2023]
Abstract
The fabrication and design of carbon-based hierarchical structures with tailored nano-architectures have attracted the enormous attention of the materials science community due to their exceptional chemical and physical properties. The collective control of nano-objects, in terms of their dimensionality, orientation and size, is of paramount importance to expand the implementation of carbon nanomaterials across a large variety of applications. In this context, porous anodic alumina (PAA) has become an attractive template where the pore morphologies can be straightforwardly modulated. The synthesis of diverse carbon nanomaterials can be performed using PAA templates, such as carbon nanotubes (CNTs), carbon nanofibers (CNFs), and nanodiamonds, or can act as support for other carbon allotropes such as graphene and other carbon nanoforms. However, the successful growth of carbon nanomaterials within ordered PAA templates typically requires a series of stages involving the template fabrication, nanostructure growth and finally an etching or electrode metallization steps, which all encounter different challenges towards a nanodevice fabrication. The present review article describes the advantages and challenges associated with the fabrication of carbon materials in PAA based materials and aims to give a renewed momentum to this topic within the materials science community by providing an exhaustive overview of the current synthesis approaches and the most relevant applications based on PAA/Carbon nanostructures materials. Finally, the perspective and opportunities in the field are presented.
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TAŞALTIN N, TÜZÜN E, KARAKUŞ S. Three-Dimensional Nb Nanopillar based Electrode for Energy Storage Devices. JOURNAL OF THE TURKISH CHEMICAL SOCIETY, SECTION A: CHEMISTRY 2022. [DOI: 10.18596/jotcsa.1112145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
In this study, aluminum (Al) film with high purity was coated on the Niobium (Nb) sheet by thermal evaporation under ultra-high vacuum. An Anodic Aluminum Oxide (AAO) nanotemplate was prepared on the Nb sheet. During AAO nanotemplate preparation, three-dimensional (3D) Nb nanopillars were grown on the Nb sheet. We performed a simple 3D Artificial Intelligence (AI) analysis of Nb nanopillars. According to the experimental results, the width of the prepared Nb nanopillars is in the range of 100–120 nm, and the length is approximately 150 nm. The Electron Diffraction Spectroscopy (EDS) results confirmed that the nanopillars are Nb. The prepared Nb nanopillars can be a potential candidate for energy storage applications.
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Hu D, Chen J, Zhu W, Huang S, Chen W, Wang J, Wang X, Xiao P. Automated real-time study of the defect-induced breakdown occurring on a film-electrode system under a high electric field. THE REVIEW OF SCIENTIFIC INSTRUMENTS 2021; 92:123906. [PMID: 34972401 DOI: 10.1063/5.0063312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Accepted: 11/13/2021] [Indexed: 06/14/2023]
Abstract
The energy storage density of a capacitor depends on its relative permittivity and breakdown strength. Breakdown of a thin film always first occurs at weak defect spots of dielectrics under a high electric field. It is of great significance to study the defect-induced breakdown of dielectrics to improve the breakdown strength of the dielectric. The majority of studies about the defect-induced breakdown only determine a certain voltage inducing the breakdown, and the single-hole breakdown spots influence the defect-induced breakdown and the intrinsic breakdown under a high electric field, which is hard to facilitate the in-depth study of improving the breakdown strength. Herein, the self-healing breakdown techniques are applied to avoid the influence of single-hole breakdown. An automated real-time testing system is used to study the defect-induced breakdown of various complex film-electrode systems, which accomplishes the temporal and spatial localization of breakdown events according to the physical chemistry characteristics of breakdowns and intelligently displays breakdown events, and detailed classification methods of the defect-induced breakdown are discussed concisely and efficiently. This real-time testing system is effective in revealing the defect-induced breakdown of various complex film-electrode systems under a high electric field, paving the way for uncovering the breakdown mechanism and studying how to improve the capacitor's breakdown strength and energy density.
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Affiliation(s)
- Dengyan Hu
- School of Electronic and Information Engineering, Foshan University, Foshan 528000, China
| | - Jianwen Chen
- School of Electronic and Information Engineering, Foshan University, Foshan 528000, China
| | - Wenbo Zhu
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
| | - Suilong Huang
- School of Mechatronic Engineering and Automation, Foshan University, Foshan 528000, China
| | - Wenjun Chen
- School of Electronic and Information Engineering, Foshan University, Foshan 528000, China
| | - Jinhai Wang
- School of Electronic and Information Engineering, Foshan University, Foshan 528000, China
| | - Xiucai Wang
- School of Materials Science and Hydrogen Energy, Foshan University,Foshan 528000, China
| | - Peng Xiao
- School of Physics and Optoelectronic Engineering, Foshan University, Foshan 528000, China
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Kang IH, Hwang SH, Baek YJ, Kim SG, Han YL, Kang MS, Woo JG, Lee JM, Yu ES, Bae BS. Interfacial Oxidized Gate Insulators for Low-Power Oxide Thin-Film Transistors. ACS OMEGA 2021; 6:2717-2726. [PMID: 33553889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 01/06/2021] [Indexed: 06/12/2023]
Abstract
Low power consumption is essential for wearable and internet-of-things applications. An effective way of reducing power consumption is to reduce the operation voltage using a very thin and high-dielectric gate insulator. In an oxide thin-film transistor (TFT), the channel layer is an oxide material in which oxygen reacts with metal to form a thin insulator layer. The interfacial oxidation between the gate metal and In-Ga-Zn oxide (IGZO) was investigated with Al, Ti, and Mo. Positive bias was applied to the gate metal for enhanced oxygen diffusion since the migration of oxygen is an important factor in interfacial oxidation. Through interfacial oxidation, a top-gate oxide TFT was developed with low source-drain voltages below 0.5 V and a gate voltage swing less than 1 V, which provide low power consumption.
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Affiliation(s)
- In Hye Kang
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Sang Ho Hwang
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Young Jo Baek
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Seo Gwon Kim
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Ye Lin Han
- Department of NanoBioTronics, Hoseo University, Asan, Chungnam 31499, Korea
| | - Min Su Kang
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Jae Geun Woo
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Jong Mo Lee
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Eun Seong Yu
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Byung Seong Bae
- School of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
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Kang IH, Hwang SH, Baek YJ, Kim SG, Han YL, Kang MS, Woo JG, Lee JM, Yu ES, Bae BS. Interfacial Oxidized Gate Insulators for Low-Power Oxide Thin-Film Transistors. ACS OMEGA 2021; 6:2717-2726. [PMID: 33553889 PMCID: PMC7860086 DOI: 10.1021/acsomega.0c04924] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 01/06/2021] [Indexed: 06/18/2023]
Abstract
Low power consumption is essential for wearable and internet-of-things applications. An effective way of reducing power consumption is to reduce the operation voltage using a very thin and high-dielectric gate insulator. In an oxide thin-film transistor (TFT), the channel layer is an oxide material in which oxygen reacts with metal to form a thin insulator layer. The interfacial oxidation between the gate metal and In-Ga-Zn oxide (IGZO) was investigated with Al, Ti, and Mo. Positive bias was applied to the gate metal for enhanced oxygen diffusion since the migration of oxygen is an important factor in interfacial oxidation. Through interfacial oxidation, a top-gate oxide TFT was developed with low source-drain voltages below 0.5 V and a gate voltage swing less than 1 V, which provide low power consumption.
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Affiliation(s)
- In Hye Kang
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Sang Ho Hwang
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Young Jo Baek
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Seo Gwon Kim
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Ye Lin Han
- Department
of NanoBioTronics, Hoseo University, Asan, Chungnam 31499, Korea
| | - Min Su Kang
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Jae Geun Woo
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Jong Mo Lee
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Eun Seong Yu
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
| | - Byung Seong Bae
- School
of Electronics and Display Engineering, Hoseo University, Asan, Chungnam 31499, Korea
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