Electron−phonon interactions in Ce3+-doped yttrium aluminum garnet nanophosphors
Su, Liap Tat
Tok, Alfred Iing Yoong
Boey, Freddy Yin Chiang
Woodhead, J. L.
Summers, C. J.
Date of Issue2008
School of Materials Science and Engineering
Ce3+-doped yttrium aluminum garnet nanophosphors with sizes near 30 and 250 nm have been synthesized by using chemical gelation and solvothermal methods, respectively. The size-dependent electron-longitudinal-optical-phonon coupling is investigated by fitting measured photoluminescence spectra within the framework of the Brownian oscillator model. Results show that the coupling strength is in a decreasing order from the bulk material to the nanophosphors of much smaller sizes.
DRNTU::Engineering::Materials::Photonics and optoelectronics materials
Journal of physical chemistry B
© 2008 American Chemical Society