✍ Scribed by R Moncorgé; P Ruterana; J Zavada
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The present article deals with the use of Si nanoclusters as efficient sensitizers towards Er 3+ or Nd 3+ ions. To take advantage from such an nc-mediated excitation, a maximum coupled rare-earth (RE) ions is sought through a careful engineering of the composition of the active material. For this pu
## Abstract With the aim of utilizing the infrared region of solar radiation to improve solar cell performance, significant progress, including theoretical analysis and experimental achievement, has been made in the field of up‐conversion for photovoltaic applications. This Research News article re
The electronic and defect energy level structure of polycrystalline SrAl 2 O 4 :Eu 2+ ,R 3+ persistent luminescence materials were studied with thermoluminescence and UV-VUV synchrotron radiation emission and excitation spectroscopy. Theoretical calculations using the density functional theory (DFT)