Abstract
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 language | English |
|---|---|
| Pages (from-to) | 237-240 |
| Number of pages | 4 |
| Journal | Functional Materials Letters |
| Volume | 4 |
| Issue number | 3 |
| DOIs | |
| Publication status | Published - 1 Sept 2011 |
Keywords
- electro-optic ceramics
- Lead-free ceramics
- piezoelectric ceramics
- transparent ceramics
ASJC Scopus subject areas
- General Materials Science