Buscar
Mostrando ítems 1-10 de 1073
Local Er(III) environment in luminescent titanosilicates prepared from microporous precursors
(Royal Soc Chemistry, 2002-01-01)
The local environment of Er3+ ions in microporous titanosilicate ETS-10 and in synthetic narsarsukite and glassy materials obtained by calcination of ETS-10 has been investigated by EXAFS, Raman and photoluminescence ...
Local Er(III) environment in luminescent titanosilicates prepared from microporous precursors
(Royal Soc Chemistry, 2002-01-01)
The local environment of Er3+ ions in microporous titanosilicate ETS-10 and in synthetic narsarsukite and glassy materials obtained by calcination of ETS-10 has been investigated by EXAFS, Raman and photoluminescence ...
Fotoluminescência e transporte elétrico em 'SNO IND. 2' dopado com os íons terras-raras 'ER POT. 3'/' e 'EU POT. 3'/'
(Universidade Estadual Paulista (Unesp), 2008-02-28)
Através do processo sol-gel, foi sintetizado o material semicondutor dióxido de estanho ('SNO IND. 2') dopado com as terras-raras 'ER' e 'EU', sendo obtidas amostras na forma de xerogéis (pós) e filmes finos, neste último ...
Fotoluminescência e transporte elétrico em 'SNO IND. 2' dopado com os íons terras-raras 'ER POT. 3'/' e 'EU POT. 3'/'
(Universidade Estadual Paulista (Unesp), 2008-02-28)
Através do processo sol-gel, foi sintetizado o material semicondutor dióxido de estanho ('SNO IND. 2') dopado com as terras-raras 'ER' e 'EU', sendo obtidas amostras na forma de xerogéis (pós) e filmes finos, neste último ...
Effect of Ag nanoparticles on the radiative properties of tellurite glasses doped with Er3+, Yb3+ and Tm3+ ions
(Elsevier B.V., 2014-11-01)
The present work is devoted to the characterization of the thermal and spectroscopic properties of tellurite glasses, codoped with Er3+, Yb3+ and Tm3+ rare-earth ions and silver nanoparticles (NPs). The techniques used for ...
Er rare-earth ion incorporation in sol-gel SnO2
(ABM, ABC, ABPol, 2003-12)
Er-doped SnO2 thin films and xerogels are obtained by sol-gel technique. In order to understand the Er³+ rare-earth ion activity in SnO2 matrix, a characterization of Er incorporation is done through emission and excitation ...
Analysis of Er3+ incorporation in SnO2 by optical investigation
(Sociedade Brasileira de Física, 2006-06-01)
Er3+ emission in the wide bandgap matrix SnO2 is observed either through a direct Er ion excitation process as well as by an indirect process, through energy transfer in samples codoped with Yb3+ ions. Electron-hole ...
Analysis of Er3+ incorporation in SnO2 by optical investigation
(Sociedade Brasileira de Física, 2006-06-01)
Er3+ emission in the wide bandgap matrix SnO2 is observed either through a direct Er ion excitation process as well as by an indirect process, through energy transfer in samples codoped with Yb3+ ions. Electron-hole ...