Journal
NANOSCALE IMAGING, SENSING, AND ACTUATION FOR BIOMEDICAL APPLICATIONS X
Volume 8594, Issue -, Pages -Publisher
SPIE-INT SOC OPTICAL ENGINEERING
DOI: 10.1117/12.2003915
Keywords
up-conversion emission; lanthanides; thermometry; nanoparticles
Funding
- European Union [FP7-SPA-2010-263044]
- Spanish government MAT2011-29255-C02-02, TEC2010-21574-C02-02 and PI09/90527 [MAT2011-29255-C02-02, TEC2010-21574-C02-02, PI09/90527]
- Catalan Authority [2009SGR235]
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We studied up-conversion emission of triply doped (Ho, Tm, Yb): KLu(WO4)(2) (KLuW) nanocrystals at the range of temperature 296-673 K at different excitation wavelengths. The intensity ratio between two emission lines was used for monitoring the temperature. Pumping Yb3+ at 980 nm provides a good response at relatively high temperatures, while pumping Tm3+ at 802 nm provides an excellent sensitivity in the biological range of temperatures., which make the material also attractive for biological temperature sensors.
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