TY - JOUR
T1 - Syntheses of nanocrystalline BaTiO3 and their optical properties
AU - Yu, J.
AU - Chu, J.
AU - Zhang, M.
PY - 2002/5
Y1 - 2002/5
N2 - Stoichiometric and titanium-excess nanocrystalline barium titanates were synthesized using a hydrothermal process at various hydrothermal temperatures and with further heat treatment at 500 °C and 900 °C. Owing to the different process conditions, the excess titanium exists in different states and configurations within the nanocrystalline BaTiO3 matrix; this was demonstrated by X-ray diffraction, Raman scattering, and photoluminescence. In these nanocrystalline BaTiO3, the 590, 571, 543 and 694 nm light emission bands were observed; mechanisms leading to such emissions were also discussed.
AB - Stoichiometric and titanium-excess nanocrystalline barium titanates were synthesized using a hydrothermal process at various hydrothermal temperatures and with further heat treatment at 500 °C and 900 °C. Owing to the different process conditions, the excess titanium exists in different states and configurations within the nanocrystalline BaTiO3 matrix; this was demonstrated by X-ray diffraction, Raman scattering, and photoluminescence. In these nanocrystalline BaTiO3, the 590, 571, 543 and 694 nm light emission bands were observed; mechanisms leading to such emissions were also discussed.
UR - https://www.scopus.com/pages/publications/0036568530
U2 - 10.1007/s003390100919
DO - 10.1007/s003390100919
M3 - 文章
AN - SCOPUS:0036568530
SN - 0947-8396
VL - 74
SP - 645
EP - 647
JO - Applied Physics A: Materials Science and Processing
JF - Applied Physics A: Materials Science and Processing
IS - 5
ER -