The Korean Journal of Ceramics

한국세라믹학회 (The Korean Ceramic Society)
권호 표지

Effects of Grain Boundaries on Photovoltaic Current and Photoinduced Domain Switching in Ferroelectric Ceramics

  • Kim, Sung-Ryul (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Choi, Dong-Gu (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology) ;
  • Choi, Si-Kyung (Department of Materials Science and Engineering, Korea Advanced Institute of Science and Technology)
  • 발행 : 2000.09.01
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

We investigated the effect of the grain size on the photovoltaic current in (Pb$_{1-x}$La$_x$)TiO$_3$ceramics, and the photoinduced domain switching in (Pb$_{0.85}$La$_{0.15}$)TiO$_3$and BaTiO$_3$ceramics. These behaviors in ferroelectric ceramics were attributed to the grain boundary at which photoexcited electrons were trapped. As the charged grain boundary acted as an electro-potential barrier which impeded the movement of electrons, the photovoltaic current showed a peak at a critical grain size. The space charge field built by the electrons trapped at the grain bound-aries was accounted for the photoinduced domain switching, and AE experimental results support well this account.

키워드

참고문헌

  1. Appl.Phys.Lett v.15 Current Saturation and Photoferroelectric Effect in SbSI V.M.Fridkin,I.I Groshik,V.A.Lakhovizkaya,M.P.Mikhailov;V.N.Nosov
  2. Phys.Rev. v.B18 Electron Transpotr in the Bulk Photovoltaic Effect H.Heyszenau
  3. J.Appl.Phys v.40 Optically Induced Change of Refractive Indices in LiNbO3 and LiTaO3 F.S.Chen
  4. Phys Lett v.59A A Bulk Photovoltaic Effect due to Eletron-Photon Coupling in Polar Crystals G.Chanussot;A.M.Glass
  5. Appl.Phys.Lett v.18 Electron Diffusion Effects During Hologram Recording in Crystals J.J.Amodei
  6. Piezoelectric Actuators and Ultrasonic Motors(Kluwer Academic Publishers Boston Dordrecht London) K.Uchino,
  7. J.Electronic Materials v.4 Excited State Polarization,Bulk Photovoltaic Effect and the Photorefractive Effect in Electrically Polarized Media A.M.Glass,D.von der Linde,D.H.Auston;T.J.Negran
  8. Ferroelectrics v.22 Photorefractive Effects in PLZT Ceramics C.E.Land;P.S.Peercy,
  9. Applphys.Lett v.64 Photoinduced Hysteresis Changes and Charge Trapping in BaTiO3 dielectrics W.L.Warren;D.Dimons,
  10. J.Solid State Chemistry v.12 High Voltage Photovoltaic Effect in Barium Titanate an Lead Titanate Lead Zirconate Ceramics P.S.Brody
  11. J.Ceram.Soc.Jpn.Inter.Ed v.95 Photostriction in PLZT Ceramics T.Sada,M.Inoue;k.Uchino,
  12. Ferroelectrics v.4 Photodomain Effect in BaTiO3 V.M.Fridkin
  13. Appl.Opt v.13 Electrical Control in Photoferroelectric Materials for Optical Storage, F.Micheron,C.Mayeux;J.C.Trotier
  14. Solid-State Electron v.15 On Acoustic Emission from Ferroelectric Crystals P.Buchman
  15. J.Mater.Sci.In Electron v.32 Acoustic Emission and Piezoactivity During Poling by Acoustic Emission Measurements in Lamodified PbTiO3 Ferroelectric Ceramics H.Iwasaki;M.Izumi
  16. J.Mater.Sci.in Electron v.32 Dynamic Behavour of Domains During Poling by Acoustic Emission Measurements in Lamodified PbTiO3 Ferroelectric Ceramics D.G.Choi;S.K.Choi
  17. v.N00019-17-C-0334 Final Report(Naval Air Systems Command,Contract) L.J.Graham;G.A.Alter,AD745000
  18. Appl.Phys.Lett v.25 High Voltage Bulk Photovoltaic Effect and the Photorefractive Process in LiNbO3 A.M.Glass,D.von der Linder;T.J.Nergran
  19. Physics of Crystalline Dielectrics A.S.Zheluev