Research Update: Polyimide/CaCu3Ti4O12nanofiber functional hybrid films with improved dielectric properties | Zendy

Yang Yang | Zendy; Ziyu Wang | Zendy; Yi Ding | Zendy; Zhihong Lu | Zendy; Haoliang Sun | Zendy; Ya Li | Zendy; Jianhong Wei | Zendy; Rui Xiong | Zendy; Jing Shi | Zendy; Zhengyou Liu | Zendy; Qingquan Lei | Zendy

AI Assistant Blog Pricing

Home ZAIA Blog

Open Access

Research Update: Polyimide/CaCu₃Ti₄O₁₂nanofiber functional hybrid films with improved dielectric properties

Author(s) -

Yang Yang,

Ziyu Wang,

Yi Ding,

Zhihong Lu,

Haoliang Sun,

Ya Li,

Jianhong Wei,

Rui Xiong,

Jing Shi,

Zhengyou Liu,

Qingquan Lei

Publication year - 2013

Publication title -

apl materials

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.571

H-Index - 60

ISSN - 2166-532X

DOI - 10.1063/1.4826937

Subject(s) - materials science , dielectric , percolation threshold , polyimide , composite material , nanofiber , permittivity , percolation theory , percolation (cognitive psychology) , high κ dielectric , dielectric loss , capacitor , electrical resistivity and conductivity , conductivity , optoelectronics , layer (electronics) , electrical engineering , voltage , chemistry , neuroscience , biology , engineering

This work reports the excellent dielectric properties of polyimide (PI) embedded with CaCu3Ti4O12 (CCTO) nanofibers. The dielectric behaviors were investigated over a frequency of 100 Hz–1 MHz. It is shown that embedding CCTO nanofibers with high aspect ratio (67) is an effective means to enhance the dielectric permittivity and reduce the percolation threshold. The dielectric permittivity of PI/CCTO nanofiber composites is 85 with 1.5 vol.% loading of filler, also the dielectric loss is only 0.015 at 100 Hz. Monte Carlo simulation was used to investigate the percolation threshold of CCTO nanofibers reinforced polyimide matrix by using excluded volume theory and soft, hard-core models. The results are in good agreement with the percolation theory and the hard-core model can well explain the percolation phenomena in PI/CCTO nanofiber composites. The dielectric properties of the composites will meet the practical requirements for the application in high dielectric constant capacitors and high energy density materials

The content you want is available to Zendy users.

Already have an account? Click here to sign in.

Having issues? You can contact us here

Accelerating Research