A novel lead-free transparent ceramic with high electro-optic coefficient

Kin Wing Kwok, Faliang Li, Dunmin Lin

Research output: Journal article publicationJournal articleAcademic researchpeer-review

19 Citations (Scopus)


A novel lead-free transparent electro-optic ceramic (K0.5Na0.5)0.95Li0.05Nb0.95Bi0.05O3+ 2 mol% excess Bi2O3has been fabricated by hot-press sintering. The ceramic possesses a dense, fine-grained and pure-perovskite structure. Owing to the decreases in optical anisotropy of the crystal structure and optical scattering by the fine grains, the ceramic becomes visually clear. It exhibits a high transmittance of 60% in the near-IR region as well as a high effective linear electro-optic coefficient of 102 pm V-1. Although a relaxor behavior is induced, the ceramic exhibits reasonably good ferroelectric and piezoelectric properties (d33= 64 pC N-1).
Original languageEnglish
Pages (from-to)237-240
Number of pages4
JournalFunctional Materials Letters
Issue number3
Publication statusPublished - 1 Sept 2011


  • electro-optic ceramics
  • Lead-free ceramics
  • piezoelectric ceramics
  • transparent ceramics

ASJC Scopus subject areas

  • General Materials Science


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