On the prospects of enhance glass based devices with silver nanoparticles: The case of Pr3+ doped tellurite-tungstate glasses

Glass engineering to enhance Si solar cells: a case study of Pr$^{3+}$-Yb$^{3+}$ codoped tellurite-tungstate as spectral converter

“…TWNN glass samples were prepared as described in details in Ref. [31], following the relation 72.5TeO 2 -23WO 3 -3Na 2 CO 3 -1.5Nb 2 O 5 in mol%. The glass was doped with 0.5 Yb 2 O 3 and x Pr 6 O 11 , where x = 0.01, 0.1 and 0.5 mol%.…”

“…The glass was doped with 0.5 Yb 2 O 3 and x Pr 6 O 11 , where x = 0.01, 0.1 and 0.5 mol%. In addition, a sample was prepared with x = 0.1 mol% and 2.0 mol% of AgNO 3 , which results in Ag nanoparticles (NP) formation in the glass, as previously reported [31]. All samples were annealed by 30 minutes near the glass transition temperature, just after the quenching, to reduce the mechanical stress.…”

“…This paper presents a spectroscopic investigation of a series of P r 3+ -doped and P r 3+ −Y b 3+ -codoped TeO 2 -WO 3 -Nb 2 O 5 -Na 2 CO 3 (TWNN) glasses. Our group has investigated this host in the last few years [4,31] because among other things it exhibits good thermal and mechanical properties which are desirable in order to produce devices. The effect of Ag nanoparticles in a codoped tellurite-tungstate glass was also investigated, once these particles may improve or deteriorate the downconvertion depending on how they interfere in the local field at the rare-earth site and introduce concentration quenching [31].…”

“…Our group has investigated this host in the last few years [4,31] because among other things it exhibits good thermal and mechanical properties which are desirable in order to produce devices. The effect of Ag nanoparticles in a codoped tellurite-tungstate glass was also investigated, once these particles may improve or deteriorate the downconvertion depending on how they interfere in the local field at the rare-earth site and introduce concentration quenching [31]. The optical absorption and photoluminescence spectra were obtained for the UV-Vis-NIR range, and the energy transfer mechanisms between P r 3+ and Y b 3+ are discussed.…”

Sulfophosphate Glass Doped with Er3+ and TiO2 Nanoparticles: Thermo-Optical Characterization by Photothermal Spectroscopy

“…Embedding metal or semiconductor nanoparticles in different rare earth ion-doped glasses could be offered as an approach to overcome the limitations related to the narrow optical band of rare earth ions at high concentration [14,15]. Over decades, several research efforts have been dedicated for determining the effects of noble metal NPs (Ag and Au) and TiO 2 semiconductor on the emission of various rare earth ions [16][17][18][19][20][21][22][23]. All these studies suggested that the metal NPs and TiO 2 semiconductors enabled intense local fields in the proximity of the Ln 3+ s. The subsequent energy transfer between them inside varied glass hosts improved the photoluminescence properties.…”