Observing reduced field fluctuation in interfacial engineered organic-inorganic dielectric nanocomposite for enhanced breakdown strength

Zhang, Fengyuan1,2; Zhang, Lingyu3; Wang, Xuyang1,2; Liu, Kaixin1,2; Huang, Boyuan1,2; Wang, Yao3; Li, Jiangyu1,2

2022-12-12

10.1063/5.0130169

APPLIED PHYSICS LETTERS   Impact Factor & Quartile

0003-6951

1077-3118

Organic-inorganic nanocomposites with superior dielectric energy density are highly sought after for high-power electronics and pulsed power systems, and interfacial engineering turns out to be one of the most successful strategies to improve their breakdown strength. However, a microscopic mechanism responsible for such improvement, thought to be closely related to local field fluctuation in the nanocomposites, has never been directly demonstrated experimentally. Here, we develop a powerful yet readily applicable in situ technique to evaluate the fluctuation of electric field in dielectrics, revealing reduced field fluctuation in interfacial engineered nanocomposites that clearly correlates with its enhanced breakdown strength. This work, thus, validates field fluctuation-based breakdown criterion of nanocomposite proposed more than one decade ago and provides further support to improve organic-inorganic nanocomposites for high density dielectric energy storage.

SCI

English

NI Journal Papers

First ; Corresponding

National Natural Science Foundation of China["92066203","12192213","51872009","12102164"] ; National Key Research and Development Program of China[2022YFF0706100] ; Guangdong Basic and Applied Basic Research Foundation["2021A1515110155","2020A1515110989"] ; Guangdong Provincial Key Laboratory Program from Guangdong Science and Technology Department[2021B1212040001] ; Guangdong Provincial Department of Education Innovation Team Program[2021KCXTD012] ; Shenzhen Science and Technology Program["JCYJ20200109115219157","RCBS20210609103201007"] ; Special Funds for the Cultivation of Guangdong College Students' Scientific and Technological Innovation from the Government of Guangdong Province ("Climbing Program" Special Funds)[pdjh2022c0010]

Physics

Physics, Applied

WOS:000899373100001

AIP Publishing

PHYSICS

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Southern Univ Sci & Technol, Guangdong Prov Key Lab Funct Oxide Mat & Devices, Shenzhen 518055, Peoples R China
3.Beihang Univ, Sch Mat Sci & Engn, Beijing 100191, Peoples R China

Zhang, Fengyuan,Zhang, Lingyu,Wang, Xuyang,et al. Observing reduced field fluctuation in interfacial engineered organic-inorganic dielectric nanocomposite for enhanced breakdown strength[J]. APPLIED PHYSICS LETTERS,2022,121(24).

Zhang, Fengyuan.,Zhang, Lingyu.,Wang, Xuyang.,Liu, Kaixin.,Huang, Boyuan.,...&Li, Jiangyu.(2022).Observing reduced field fluctuation in interfacial engineered organic-inorganic dielectric nanocomposite for enhanced breakdown strength.APPLIED PHYSICS LETTERS,121(24).

Zhang, Fengyuan,et al."Observing reduced field fluctuation in interfacial engineered organic-inorganic dielectric nanocomposite for enhanced breakdown strength".APPLIED PHYSICS LETTERS 121.24(2022).