title: Laser induced white emission generated by infrared excitation from Eu3+:Sr2CeO4nanocrystals.
abstract: The laser induced white emission (LIWE) was observed from Eu3+:Sr2CeO4nanocrystals. The samples were obtained in form of powders by the modified sol-gel route. The structure and morphology of the phosphors were investigated by powder X-ray diffraction and transmission electron microscope techniques. The intense LIWE occurred under reduced pressure and focused beam of near infrared laser excitation. The power and pressure dependencies exhibit evident threshold character typical for the avalanche effect. The photoconductivity of the Eu3+:Sr2CeO4nanocrystals measured as a function of different powers of excitation source was analyzed.
authors.affiliation: Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Stefanski
authors.affiliation: Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland.
authors.forename: M
authors.initials: M
authors.lastname: Lukaszewicz
authors.affiliation: Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland.
authors.forename: D
authors.initials: D
authors.lastname: Hreniak
authors.affiliation: Institute of Low Temperature and Structure Research, Polish Academy of Sciences, 50-422 Wroclaw, Poland.
authors.forename: W
authors.initials: W
authors.lastname: Strek