Title: Towards broad range and highly efficient down-conversion of solar spectrum by Er3+-Yb3+ co-doped nano-structured glass-ceramics
Authors: Rodriguez, V. D ×
Tikhomirov, Victor
Mendez-Ramos, J
Yanes, A. C
Moshchalkov, Victor #
Issue Date: Oct-2010
Publisher: Elsevier science bv
Series Title: Solar energy materials and solar cells vol:94 issue:10 pages:1612-1617
Abstract: The efficiency of semiconductor solar cells could be greatly increased by down-conversion processes, which efficiently split incident solar photons into couples of photons with energy over the bandgap. Here, we show new down-conversion mechanisms in Er3+-Yb3+ co-doped glass-ceramics, where the ions are hosted by fluoride nanoparticles embedded in silica glass. By this means, 350-550 nm photons, absorbed by Er3+ ions, generate pairs of photons at the range of 650-1550 nm, emitted by Er3+ and Yb3+, with a quantum efficiency approaching the maximum of 200%. (C) 2010 Elsevier B.V. All rights reserved.
ISSN: 0927-0248
Publication status: published
KU Leuven publication type: IT
Appears in Collections:Solid State Physics and Magnetism Section
× corresponding author
# (joint) last author

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