Pure SiO2 xerogels and SiO2 xerogels containing SrF2: Eu3+/: Tb3+ crystals were prepared using sol-gel method. Luminescent spectra showed excitation and emission peaks characteristic to Eu3+ and Tb3+ 4f - 4f transitions. ET Tb3+→Eu3+ has been observed. XRD pattern of SiO2 matrix confirmed lack of long range order. Patterns of SiO2-SrF2:Eu3+ and SiO2-SrF2:Tb3+ showed peaks corresponding to SrF2. SEM images have shown agglomerates of particles and presence of pores. FTIR spectra showed bands related to Si-O vibrations and vibrations associated with the OH groups. Thus, SiO2-SrF2 system doped with Eu3+ and Tb3+ could be a potential candidate for LEDs applications. Review of other materials for LED applications is also presented.
Authors
- Michalina Walas link open in new tab ,
- prof. dr hab. inż. Barbara Kościelska link open in new tab ,
- Tomasz Lewandowski link open in new tab ,
- dr inż. Marcin Stanisław Łapiński link open in new tab ,
- prof. dr hab. inż. Wojciech Sadowski link open in new tab ,
- prof. dr hab. inż. Andrzej Kłonkowski link open in new tab ,
- Wiesław Wiczk link open in new tab ,
- Irena Bylińska
Additional information
- Category
- Aktywność konferencyjna
- Type
- publikacja w wydawnictwie zbiorowym recenzowanym (także w materiałach konferencyjnych)
- Language
- angielski
- Publication year
- 2015
