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The Materials Map is an open tool for improving networking and interdisciplinary exchange within materials research. It enables cross-database search for cooperation and network partners and discovering of the research landscape.

The dashboard provides detailed information about the selected scientist, e.g. publications. The dashboard can be filtered and shows the relationship to co-authors in different diagrams. In addition, a link is provided to find contact information.

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Publications (1/1 displayed)

  • 2022Functional Groups Assisted Tunable Dielectric Permittivity of Guest‐Free Zn‐Based Coordination Polymers for Gate Dielectrics4citations

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Chen, Jenqwei
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Hayashi, Michitoshi
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2022

Co-Authors (by relevance)

  • Chen, Jenqwei
  • Hayashi, Michitoshi
  • Usman, Muhammad
  • Luo, Tzuootsair
  • Liaw, Wenfeng
  • Hung, Chenhsiung
  • Inamdar, Arif I.
  • Kamal, Saqib
  • Sainbileg, Batjargal
  • Chiou, Kuanru
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article

Functional Groups Assisted Tunable Dielectric Permittivity of Guest‐Free Zn‐Based Coordination Polymers for Gate Dielectrics

  • Chen, Jenqwei
  • Hayashi, Michitoshi
  • Usman, Muhammad
  • Luo, Tzuootsair
  • Lu, Kuang-Lieh
  • Liaw, Wenfeng
  • Hung, Chenhsiung
  • Inamdar, Arif I.
  • Kamal, Saqib
  • Sainbileg, Batjargal
  • Chiou, Kuanru
Abstract

<jats:title>Abstract</jats:title><jats:p>The dielectric properties of coordination polymers has been a topic of recent interest, but the role of different functional groups on the dielectric properties of these polymers has not yet been fully addressed. Herein, the effects of electron‐donating (R=NH<jats:sub>2</jats:sub>) and electron‐withdrawing (R=NO<jats:sub>2</jats:sub>) groups on the dielectric behavior of such materials were investigated for two thermally stable and guest‐free Zn‐based coordination polymers, [Zn(L<jats:sub>1</jats:sub>)(L<jats:sub>2</jats:sub>)]<jats:sub>n</jats:sub> (<jats:bold>1</jats:bold>) and [Zn(L<jats:sub>1</jats:sub>)(L<jats:sub>3</jats:sub>)]<jats:sub>n</jats:sub> (<jats:bold>2</jats:bold>) [L<jats:sub>1</jats:sub>=2‐(2‐pyridyl) benzimidazole (Pbim), L<jats:sub>2</jats:sub>=5‐aminoisophthalate (Aip), and L<jats:sub>3</jats:sub>=5‐nitroisophthalate (Nip)]. The results of dielectric studies of <jats:bold>1</jats:bold> revealed that it possesses a high dielectric constant (κ=65.5 at 1 kHz), while compound <jats:bold>2</jats:bold> displayed an even higher dielectric constant (κ=110.3 at 1 kHz). The electron donating and withdrawing effects of the NH<jats:sub>2</jats:sub> and NO<jats:sub>2</jats:sub> substituents induce changes in the polarity of the polymers, which is due to the inductive effect from the aryl ring for both NO<jats:sub>2</jats:sub> and NH<jats:sub>2</jats:sub>. Theoretical results from density functional theory (DFT) calculations, which also support the experimental findings, show that both compounds have a distinct electronic behavior with diverse wide bandgaps. The significance of the current work is to provide information about the structure‐dielectric property relationships. So, this study promises to pave the way for further research on the effects of different functional groups on coordination polymers on their dielectric properties.</jats:p>

Topics
  • density
  • impedance spectroscopy
  • compound
  • polymer
  • theory
  • dielectric constant
  • density functional theory