Polyethylene terephthalate thin films; a luminescence study

Autor: S. Carmona-Téllez, G. Alarcón-Flores, A. Meza-Rocha, E. Zaleta-Alejandre, M. Aguilar-Futis, H. Murrieta S, C. Falcony
Rok vydání: 2015
Předmět:
Zdroj: Optical Materials. 42:99-105
ISSN: 0925-3467
DOI: 10.1016/j.optmat.2014.12.026
Popis: Polyethylene Terephthalate (PET) films doped with Rare Earths (RE 3+ ) have been deposited on glass by spray pyrolysis technique at 240 °C, using recycled PET and (RE 3+ ) chlorides as precursors. Cerium, terbium, dysprosium and europium were used as dopants materials, these dopants normally produce luminescent emissions at 450, 545, 573 and 612 nm respectively; the doped films also have light emissions at blue, green, yellow and red respectively. All RE 3+ characteristic emissions were observed at naked eyes. Every deposited films show a high transmission in the visible range (close 80% T), films surfaces are pretty soft and homogeneous. Films thickness is around 3 μm.
Databáze: OpenAIRE