Jean-Claude Bunzli - Lanthanide NIR luminescence for telecommunications, bioanalyses and solar energy conversion

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  Bunzli,J.C.G., Eliseeva,S.V. Journal of Rare Earths  2010 28 (6) 824-842

  Abstract: Present-day advanced technologies   heavily rely on the exciting magnetic and spectroscopic   properties of lanthanide ions. In particular, their ability to   generate well-characterized and intense near-infrared (NIR)   luminescence is exploited in any modern fiber-optic   telecommunication network. In this feature article, we first   summarize the whereabouts underlying the design of highly   luminescent NIR molecular edifices and materials. We then focus   on describing the main trends in three applications related to   this spectral range: telecommunications, biosciences, and solar   energy conversion. In telecommunications, efforts concentrate   presently on getting easily processable polymer-based waveguide   amplifiers. Upconversion nanophosphors emitting in the visible   after NIR excitation are now ubiquitous in many bioanalyses while   their application to bio-imaging is still in its early stages;   however, highly sensitive NIR-NIR systems start to be at hand for   both in vitro and in vivo imaging, as well as dual probes   combining magnetic resonance and optical imaging. Finally, both   silicon-based and dye-sensitized solar cells benefit from the   downconversion and upconversion capabilities of lanthanide ions   to harvest UV and NIR solar light and to boost the overall   quantum efficiency of these next-generation devices

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