Cation diffusion characteristics in MgO-doped LiNbO3 during Ti diffusion

Ryoung Han Kim, Hyung Ho Park, Gi Tae Joo

Research output: Contribution to journalArticle

3 Citations (Scopus)

Abstract

MgO addition in LiNbO3 single crystals is being actively studied for the usage in optical waveguides because of the resistance against optical damage. MgO was added as a dopant during the powder preparation of LiNbO3. Ti films were prepared by e-beam evaporation at room temperature on the mechanically polished Z surface of MgO-doped LiNbO3 crystals. After Ti film deposition, Ti was in-diffused by annealing. It was observed that Ti diffusion characteristic is strongly influenced by annealing temperature. During Ti diffusion, Li which was influenced by Ti diffusion, diffused out. In the case of Mg, however, its behavior was different from those of Ti and Li, and Mg made an accumulation layer near the surface of LiNbO3.

Original languageEnglish
Pages (from-to)570-574
Number of pages5
JournalApplied Surface Science
Volume169-170
DOIs
Publication statusPublished - 2001 Jan 15

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Condensed Matter Physics
  • Physics and Astronomy(all)
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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