Crystal-isotropicity dependence of ionic conductivity enhancement at strained interfaces

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review

1 Scopus Citations
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Author(s)

  • Weiqiang Lv
  • Na Feng
  • Yinghua Niu
  • Fei Yang
  • Kechun Wen
  • Minda Zou
  • Yupei Han
  • Weidong He

Detail(s)

Original languageEnglish
Pages (from-to)168-172
Journal / PublicationSolid State Ionics
Volume289
Publication statusPublished - 1 Jun 2016

Abstract

In the solid state ionic field, lattice strain is ubiquitous at heterostructural crystal interfaces and can lead to enormous variation in the transport efficiency of ions along the as-formed strained interfaces. In particular, substantial experimental work has been focused on Y-doped ZrO2 (YSZ), the O2 - ionic conductivity of which can be enhanced ~ 104 times under a 4% lattice strain. Despite the consistence that theoretical modeling and computing finds with such an experimental enhancement, a fundamental investigation into the isotropicity dependence of ionic conduction in strained crystal interfaces is still lacking. In this report, we investigate the isotropicity dependence of ionic conduction in arbitrary orthorhombic crystals and reveal the intrinsic conduction enhancement upon applying strain at any designated crystal orientation. Our work provides fundamental basis for rational strain engineering of a crystal in general, the ionic conduction of which is subject to enhancement for energy applications.

Research Area(s)

  • Fuel cells, Ionic conductivity, Isotropicity, Lattice strain

Citation Format(s)

Crystal-isotropicity dependence of ionic conductivity enhancement at strained interfaces. / Lv, Weiqiang; Feng, Na; Niu, Yinghua; Yang, Fei; Wen, Kechun; Zou, Minda; Han, Yupei; Zhao, Jiyun; He, Weidong.

In: Solid State Ionics, Vol. 289, 01.06.2016, p. 168-172.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalNot applicablepeer-review