title: Photoluminescence and energy transfer study of Er3+ and Dy3+ codoped tellurite glasses.
abstract: Photoluminescence properties of the Er(3+)-Dy3+ codoped tellurite glasses were studied by absorption and visible emission spectra, which revealed luminescence bands of both Er3+ and Dy3+ when pumping with the wavelength of 325 nm. The concentration quenching occurred as Dy3+ concentration increased beyond 3 mol%. The dependence of Er3+ characteristic emission on Dy3+ concentration indicated energy transfer process between Er3+ and Dy3+. The chromaticity coordinates of these glasses are close to white light, which implies that these glasses might be potential candidates for white lighting through an appropriate combination.
authors.affiliation: School of Physics and Nuclear Energy Engineering, Beihang University, Beijing 100191, China.
authors.forename: Feng
authors.initials: F
authors.lastname: Zhang
authors.forename: Zhisong
authors.initials: Z
authors.lastname: Xiao
authors.forename: Fang
authors.initials: F
authors.lastname: Zhu
authors.forename: Lu
authors.initials: L
authors.lastname: Yan
authors.forename: Bo
authors.initials: B
authors.lastname: Zhou
authors.forename: Anping
authors.initials: A
authors.lastname: Huang