Optical interband transitions in [111] poled relaxor-based ferroelectric 0.24Pb(In 1/2Nb 1/2)O 3-(0.76 - X)Pb(Mg 1/3Nb 2/3)O 3-xPbTiO 3 single crystal

Fengmin Wu, Bin Yang, Enwei Sun, Zhu Wang, Yongqi Yin, Yanbo Pei, Wenlong Yang, Wenwu Cao

Research output: Contribution to journalArticlepeer-review

19 Scopus citations


Optical transmission spectra of single crystal 0.24Pb(In 1/2Nb 1/2)O 3-(0.76 - x)Pb(Mg 1/3Nb 2/3)O 3-xPbTiO 3 (x = 0.27, 0.33) were measured in the pseudo-cubic crystallographic directions [111] and [11 $$ \overline{2} $$ ]. Ferroelectric domain structures were observed in order to explain the difference of transmittance for the two composition crystals. Wavelength dependence of the absorption coefficients was measured and the optical energy band gaps were calculated for both direct and indirect transitions, which are E gd = 3.09-3.18 eV and E gi = 2.89-2.96 eV, respectively, and the phonon energy is E p = 0.07-0.08 eV. The transmission spectra were explained by the refractive indices and extinction coefficients measured by spectroscopic ellipsometry.

Original languageEnglish (US)
Pages (from-to)2818-2822
Number of pages5
JournalJournal of Materials Science
Issue number6
StatePublished - Mar 2012

All Science Journal Classification (ASJC) codes

  • Materials Science(all)
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'Optical interband transitions in [111] poled relaxor-based ferroelectric 0.24Pb(In <sub>1/2</sub>Nb <sub>1/2</sub>)O <sub>3</sub>-(0.76 - X)Pb(Mg <sub>1/3</sub>Nb <sub>2/3</sub>)O <sub>3</sub>-xPbTiO <sub>3</sub> single crystal'. Together they form a unique fingerprint.

Cite this