Room-temperature A1(TO) and OH- absorption spectra of Zn-doped lithium niobate crystals

Chih Ta Chia, May Lan Sun, Ming Li Hu, Jung Yang Chang, Wen Son Tse, Z. P. Yang, Hung Hsiang Cheng

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

A1(TO) phonons and OH- absorption spectra of Zn-doped lithium niobate crystals were measured by Raman and infrared spectroscopies at room temperature. Zn doping concentrations are from 0 to 8.1 mol.%. The characterizations of A1(TO)-phonon lineshapes and OH- absorption bands as a function of Zn concentration were carried out. The results revealed from Raman and OH- absorption analyses show consistency in the changes of phonon lineshapes and OH- absorption bands. The spectra revealed three different stages of Zn substitution. Based on the Li-vacancy model, the proposed Zn substitution mechanism is: (i) below 5.3 mol.%, Zn atoms replace Li atoms and the total number of Li vacancies is reduced; (ii) from 5.3 to 7.5 mol.% doping, Zn atoms still replace Li atoms but the number of vacancies increases; (iii) above 7.5 mol.% doping, Zn atoms start to replace Nb atoms.

Original languageEnglish
Pages (from-to)6234-6237
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume42
Issue number9 B
Publication statusPublished - 2003 Sep 1

Fingerprint

lithium niobates
Absorption spectra
Lithium
absorption spectra
Atoms
Crystals
room temperature
Vacancies
crystals
atoms
Doping (additives)
Temperature
Substitution reactions
substitutes
Phonons
Raman spectroscopy
Infrared spectroscopy
phonons
infrared spectroscopy

Keywords

  • A(TO) phonon
  • IR absorption
  • Lithium niobate
  • OH absorption
  • Zn doped

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Room-temperature A1(TO) and OH- absorption spectra of Zn-doped lithium niobate crystals. / Chia, Chih Ta; Sun, May Lan; Hu, Ming Li; Chang, Jung Yang; Tse, Wen Son; Yang, Z. P.; Cheng, Hung Hsiang.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 42, No. 9 B, 01.09.2003, p. 6234-6237.

Research output: Contribution to journalArticle

Chia, Chih Ta ; Sun, May Lan ; Hu, Ming Li ; Chang, Jung Yang ; Tse, Wen Son ; Yang, Z. P. ; Cheng, Hung Hsiang. / Room-temperature A1(TO) and OH- absorption spectra of Zn-doped lithium niobate crystals. In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers. 2003 ; Vol. 42, No. 9 B. pp. 6234-6237.
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AU - Tse, Wen Son

AU - Yang, Z. P.

AU - Cheng, Hung Hsiang

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