Article
Engineering, Environmental
Jie Liu, Linye Ji, Junyi Yu, Shanjun Ding, Suibin Luo, Baojin Chu, Jianbin Xu, Rong Sun, Shuhui Yu
Summary: We successfully enhance the dielectric breakdown strength and electrostatic energy storage density of polymer-based materials by introducing heterostructure nanoparticles into the matrix. The special electrical rectification effect of these nanoparticles captures and confines charge carriers, resulting in suppressed leakage current and increased dielectric displacement and charge-discharge efficiency. The introduced heterojunction of ZnO-ZnS nanoparticles enables high energy storage performance, even at high temperatures and over long cycles.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Nanoscience & Nanotechnology
Qing Cao, Wenbo Zhu, Wenjun Chen, Xinrui Chen, Rongliang Yang, Shaodian Yang, Hao Zhang, Xuchun Gui, Jianwen Chen
Summary: Nanofiller/polymer nanocomposites have great potential in energy conversion for wearable and flexible electronics. This study fabricates TiOx nanoparticles with a partially hollow structure and combines them with PVDF to achieve high energy storage performance. The optimized structure of partially hollow TiOx nanoparticles enhances the breakdown strength of the nanocomposites. This work provides a new approach for structurally designing and fabricating low-loading polymer-based nanocomposites for energy storage applications in next-generation flexible electronics.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Environmental
Wen-Bo Li, Di Zhou, Wen-Feng Liu, Jin-Zhan Su, Fayaz Hussain, Da-Wei Wang, Ge Wang, Zhi-Lun Lu, Qiu-Ping Wang
Summary: High-temperature BaTiO3-based ceramic capacitors have broad application prospects in energy storage devices, especially with the development of novel ceramics like the 0.88BT-0.12(1-x)BLN-0.12xBMT (x = 0.6) multilayer ceramics capacitors with significantly increased breakdown strength and energy density.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
A. Choudhary, V Priyadarsini, Varna V. Nair, Athul Pradeep, J. Jumana, V Kumar
Summary: The study focused on AFE and FE ceramics near the FE-AFE phase boundary in a quaternary phase composition. By synthesizing PSZT ceramics and analyzing the structural modifications as a function of Sr2+ concentration, a systematic FE to AFE transition was revealed. Evaluation of recoverable energy density and energy storage efficiency was conducted for potential energy storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Polymer Science
Yang Zhang, Rui Feng, Zhuo Chen, Tingting Zhao, Yanyun Ju, Shengliao Yan, Shaokun Song, Guanghui Zhao, Lijie Dong
Summary: Polymer dielectrics play an important role in advanced electronic devices and pulsed power systems due to their easy processing, low cost, flexibility, and high breakdown strength. However, their low energy density limits the miniaturization and integration of dielectric capacitors. Through the synthesis and introduction of poly(1,4-anthraquinone) into PVDF, a new strategy for preparing PVDF-based dielectric film with superior energy storage performances has been developed, increasing both E-b and U-e values significantly.
EUROPEAN POLYMER JOURNAL
(2021)
Article
Materials Science, Ceramics
Kai Zhang, Peng Zheng, Hongfei Zhang, Ziang Niu, Chong Luo, Wangfeng Bai, Jingji Zhang, Liang Zheng, Yang Zhang
Summary: In this study, ferroelectric Na0.5Bi0.5TiO3 (NBT) was introduced into paraelectric BST to enhance energy storage performance. The results show that the introduction of NBT induced polar nano-regions (PNRs) in the paraelectric matrix, resulting in a slim hysteresis loop with low remnant polarisation (P-r) and high P-max simultaneously. The NBT-modified BST ceramics exhibited remarkable energy storage performance with high energy storage density and efficiency, as well as excellent current density and ultrahigh power density.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Pengjian Wang, Yan Guo, Di Zhou, Da Li, Lixia Pang, Wenfeng Liu, Jinzhan Su, Zhongqi Shi, Shikuan Sun
Summary: The study reports a composite material comprising polyimide dielectric polymers blended with high-insulation magnesium oxide nano-filler, which exhibits high breakdown strength, wide temperature range, and low dielectric loss, providing excellent performance in high-temperature environments.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Xinshuai Li, Zhicheng Shi, Mingli Han, Qingyang Tang, Peitao Xie, Runhua Fan
Summary: By designing all-organic dielectric films with gradient transition layers, this study achieved polymeric dielectrics with high breakdown strength, high-energy density, and high efficiency, providing new insights for the development of power electronic devices.
MATERIALS TODAY ENERGY
(2022)
Article
Chemistry, Physical
Yue Zhang, Xin He, Xiuchun Cong, Qi Wang, Huajie Yi, Sen Li, Changhai Zhang, Tiandong Zhang, Xuan Wang, Qingguo Chi
Summary: ZnO nano-shell and BFSTO nano-shell coated BZCT were successfully synthesized and added to the PESU matrix, which significantly improved the discharged energy density and efficiency. The 2 wt% BZCT@BFSTO/PESU composite achieved a discharge energy density of 10.5 J/cm3 and a charge-discharge efficiency of 84%. This in-depth research on PESU-based composite dielectrics provides an experimental and theoretical basis for improving the dielectric properties and energy storage performance of polymer-based composites, promoting the development of new dielectric capacitors, and paving the way for their applications in the field of energy storage.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Materials Science, Multidisciplinary
Qifa He, Kai Sun, Zhicheng Shi, Yao Liu, Runhua Fan
Summary: This review provides a comprehensive understanding of polymeric dielectric capacitors, covering the fundamental theories, fabrication techniques, properties, and challenges. The emphasis is on discussing synergetic strategies to enhance dielectric and energy storage properties of polymeric dielectric capacitors.
Article
Engineering, Environmental
Zhonghua Dai, Jinglong Xie, Zhaobing Chen, Shun Zhou, Jingjing Liu, Weiguo Liu, Zengzhe Xi, Xiaobing Ren
Summary: The study successfully enhanced the energy density and efficiency of dielectric materials by doping BiMg2/3Nb1/3O3 (BMN). The new materials exhibit ultra-high energy density and high efficiency, with excellent stability, and significantly higher energy density compared to traditional ceramics.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Nanoscience & Nanotechnology
Houmeng Du, Zhicheng Shi, Qing Hou, Shuimiao Xia, Peng Yin, Davoud Dastan, Hongzhi Cui, Runhua Fan
Summary: In this work, an easily operated method is reported to improve the dielectric capacitive energy storage properties of polymers by sputtering ultralow content of gold nanoparticles on the interface of bilayer polymer films. The gold nanoparticles effectively block the movement of charge carriers, resulting in significantly enhanced breakdown strength. Meanwhile, the gold nanoparticles act as electrodes to form numerous equivalent microcapacitors, leading to an obviously enhanced dielectric constant. This work offers a promising approach for improving the energy storage capability of polymers and can be applicable to other materials.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Vishwa Pratap Singh, Satyendra Kumar Satyarthi, Ankit Dwivedi, Akansha Dwivedi, Akhilesh Kumar Singh
Summary: Polymer-ceramic based nanocomposite dielectric materials have attracted researchers due to their lightweight, high dielectric breakdown strength, and good dielectric properties. In this study, a self-standing film of PVDF/Hy-V2O5 ferroelectric polymer nanocomposite was synthesized, demonstrating lower surface roughness and suitability for energy storage applications.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Yue Zhang, Sen Li, Xiuchun Cong, Changhai Zhang, Yu Feng, Yongquan Zhang, Tiandong Zhang, Qingguo Chi, Xuan Wang, Qingquan Lei
Summary: Currently, composite dielectric materials have shown great potential in the field, as they simultaneously enhance permittivity and breakdown strength. These materials enable lightweight and miniaturized dielectric capacitors, while promoting the development of energy storage and conversion devices. This study successfully prepared a polymer-based dielectric composite with excellent breakdown strength and energy storage performance.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Chemistry, Physical
Zhiqiang Wu, Yiwen Peng, Ying Song, Haoyu Liang, Lei Gong, Zhenguo Liu, Qiuyu Zhang, Yanhui Chen
Summary: A series of cross-linked polyimide films with outstanding dielectric properties and high temperature energy storage property were prepared by introducing the end-capping agent, norbornene dioic anhydride. The cross-linked structure greatly reduces the dielectric loss and improves the electrical insulation properties of the films. The films exhibit a maximum energy storage density of 9.4 J/cm3 and maintain high energy storage density and efficiency at elevated temperatures.
MATERIALS TODAY ENERGY
(2023)
Article
Nanoscience & Nanotechnology
Xinzhe Du, Haoyang Sun, He Wang, Jiachen Li, Yuewei Yin, Xiaoguang Li
Summary: Hf0.5Zr0.5O2-based ferroelectric tunnel junction (FTJ) memristor exhibits high-speed switching of 20 ns, a giant electroresistance ratio of around 834, and good retention exceeding 10(4) s, with multiple states of 8 or three bits. As a solid synaptic device, adjustable synapse functions such as long-term potentiation, long-term depression, and spike-timing-dependent plasticity have been achieved.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Zhizhan Dai, Zhiwei Bao, Song Ding, Chuanchuan Liu, Haoyang Sun, He Wang, Xiang Zhou, Yuchen Wang, Yuewei Yin, Xiaoguang Li
Summary: The study developed nanocomposites based on polyimide-poly(amic acid) copolymers with a very low amount of boron nitride nanosheets, significantly enhancing the energy density and efficiency of high-temperature capacitors. Experimental results demonstrate outstanding performance of the high-temperature polymer-based capacitors under actual working conditions, withstanding charge-discharge cycles and high-temperature endurance tests.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Junhua Liu, Xinxin Zhang, Yaoyao Ji, Xiaofei Gao, Jiating Wu, Minjie Zhang, Lin Li, Xiaokang Liu, Wensheng Yan, Tao Yao, Yuewei Yin, Lingfei Wang, Hangwen Guo, Guanglei Cheng, Zhaosheng Wang, Peng Gao, Yilin Wang, Kai Chen, Zhaoliang Liao
Summary: Ferromagnetic order is achieved in metallic SrIrO3 by constructing SrIrO3/ferromagnetic-insulator superlattices, exhibiting strong coercivity and perpendicular magnetic anisotropy. The Curie temperature of SrIrO3 can be controlled by engineering interface charge transfer, and noncoplanar spin texture is observed.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Physics, Applied
Zhen Luo, Xinzhe Du, Hui Gan, Yue Lin, Wensheng Yan, Shengchun Shen, Yuewei Yin, Xiaoguang Li
Summary: By engineering Hf1-xZrxO2 (HZO) films and inserting Al2O3 interface layers, the challenge of obtaining both high dielectric constant and low leakage for dynamic random-access memory (DRAM) is overcome. The results show that the TiN/Al2O3 (0.2 nm)/Hf0.5Zr0.5O2 (5.6 nm)/Al2O3 (0.3 nm)/TiN capacitors achieve a high dielectric constant of about 46.7 and low leakage current density, with the added benefit of long dielectric breakdown time, making them suitable for next generation DRAM capacitor devices.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Applied
Jiachen Li, He Wang, Xinzhe Du, Zhen Luo, Yuchen Wang, Weiping Bai, Xingsong Su, Shengchun Shen, Yuewei Yin, Xiaoguang Li
Summary: In this work, the ferroelectric endurance properties of Hf0.5Zr0.5O2 (HZO) film under various pulse voltages and pulse widths were systematically investigated. It was found that the fatigue severity initially increases and then decreases with increasing pulse voltage or width. Our work provides a universal way to weaken fatigue and improve endurance performance of HfO2-based ferroelectric random access memory devices.
APPLIED PHYSICS LETTERS
(2023)
Article
Physics, Multidisciplinary
Bingqian Wang, Shuting Peng, Zhipeng Ou, Yuchen Wang, Muhammad Waqas, Yang Luo, Zhiyuan Wei, Linwei Huai, Jianchang Shen, Yu Miao, Xiupeng Sun, Yuewei Yin, Junfeng He
Summary: In this study, single crystals of Sr-3(Ir1-x Rh (x) )(2)O-7 with a doping level of about 9% were successfully grown and fully characterized, demonstrating their high quality. Transport measurements confirmed the tendency of metal-insulator transition (MIT) in these samples. Angle-resolved photoemission spectroscopy (ARPES) measurements were also conducted to examine the electronic structure. This research provides a platform to investigate heavily hole-doped Sr3Ir2O7 compound and offers new insights into the MIT with hole doping in this material system.
Article
Chemistry, Physical
Song Ding, Zhiwei Bao, Yiwei Wang, Zhizhan Dai, Jiangheng Jia, Shengchun Shen, Yuewei Yin, Xiaoguang Li
Summary: Current commercial dielectric polymers cannot meet the increasing demand for advanced capacitors under harsh thermal conditions. In this study, we designed and prepared all-organic polyetherimide/poly(arylene ether urea) polymer blend films, which achieved a record-high discharged energy density with high efficiency at 150 degrees C. These films also exhibited excellent temperature stability and long-term reliability under working conditions of hybrid vehicles. The introduction of molecular trapping centers greatly reduced high-temperature conduction loss, contributing to the excellent dielectric energy storage performances.
JOURNAL OF POWER SOURCES
(2023)
Article
Nanoscience & Nanotechnology
Yuchen Wang, Si Liu, Zhen Luo, Hui Gan, He Wang, Jiachen Li, Xinzhe Du, Haoyu Zhao, Shengchun Shen, Yuewei Yin, Xiaoguang Li
Summary: The emergence of CMOS-compatible HfO2-based ferroelectric materials enables the achievement of FeFETs with a steep subthreshold swing reduced to below the Boltzmann thermodynamics limit, which is crucial for reducing power consumption. This study demonstrates that by connecting a MOSFET with Hf0.5Zr0.5O2-based ferroelectric capacitors of different capacitances, an ultralow subthreshold swing of approximately 0.34 mV/dec can be achieved. Furthermore, by manipulating the sweeping voltage sequences, the subthreshold swing can be adjusted to 0 mV/dec with a wide range of drain current, and the threshold voltage for turning on the MOSFET can be further reduced. The manipulated subthreshold swing is attributed to the evolution of ferroelectric switching. This work contributes to understanding the origin of ultralow subthreshold swing in ferroelectric MOSFETs and the realization of low-power devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Materials Science, Multidisciplinary
Hui Gan, Shengchun Shen, Yaoxin Li, Yuewei Yin, Xiaoguang Li
Summary: We find that the electronic structures and transport properties of ferroelectric tunnel junctions (FTJs) are highly influenced by the types and locations of oxygen vacancies (OVs) in the ferroelectric barrier. The presence of OVs leads to the formation of local tail-to-tail domain walls, which alters the ferroelectricity of the barrier and the local density of states in the TiO2 layers. Consequently, the tunneling electroresistance (TER) effect is enhanced in the presence of OVs and is sensitive to their types and locations. These findings are crucial for the design of FTJs.
Article
Chemistry, Physical
Xin-Zhe Du, Zhen Luo, Sheng-Chun Shen, Wei-Ping Bai, Hui Gan, Yue-Wei Yin, Xiao-Guang Li
Summary: In this research, the influence of the dose of H2O reactants on the phase structure and electrical characteristics of Hf0.3Zr0.7O2 thin films during atomic layer deposition was investigated. By controlling the H2O dose and other conditions, a high dielectric constant and low leakage current density were achieved in the TiN/Al2O3/Hf0.3Zr0.7O2/TiN capacitor near the morphotropic phase boundary. The dielectric constant remained above 40 with high endurance, indicating potential for future generation DRAM capacitor materials.
APPLIED SURFACE SCIENCE
(2023)
Article
Multidisciplinary Sciences
Xin Li, Yu Yun, Arashdeep Singh Thind, Yuewei Yin, Qiang Li, Wenbin Wang, Alpha T. N'Diaye, Corbyn Mellinger, Xuanyuan Jiang, Rohan Mishra, Xiaoshan Xu
Summary: This study investigates the electrical modulation of magnetic states in single-phase multiferroic materials using domain-wall magnetoelectric (ME) coupling. Results show that the domain-wall ME effect is dramatically enhanced when the separation between ferroelectric (FE) domain walls shrinks below the characteristic width of the antiferromagnetic (AFM) domain walls. These findings suggest that the domain-wall ME effect is capable of electrical control of magnetization.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Zhiwei Bao, Song Ding, Zhizhan Dai, Yiwei Wang, Jiangheng Jia, Shengchun Shen, Yuewei Yin, Xiaoguang Li
Summary: This study demonstrates a convenient and competitive strategy of preparing ultraviolet-irradiated cyclic olefin copolymer films to improve the energy storage performance at high temperatures. The irradiated films show higher dielectric constant, breakdown strength, and mechanical properties compared to the unirradiated film, resulting from the emergence of carbonyl groups and a cross-linking network. As a result, a superior discharged energy density of approximately 3.34 J cm(-3) is achieved at 150 degrees C, surpassing current dielectric materials. This research provides a valuable pathway for high-energy-density polymer-based capacitor devices in harsh environments.
MATERIALS HORIZONS
(2023)
