TY - GEN
T1 - Spectral engineering of UV luminescence of upconverting nanoparticles
AU - Nguyen, Vina
AU - Dawson, Peter
AU - Romanowski, Marek
N1 - Publisher Copyright:
© 2020 SPIE.
PY - 2020
Y1 - 2020
N2 - Spectral tuning of UV luminescence of upconverting nanoparticles (UNPs) enables development of modern applications of upconversion such as infrared-driven photochemistry. We investigated spectral tuning of luminescence of upconverting nanoparticles composed of NaYF4: Yb3+, Tm3+ (69.5:30:0.5). We demonstrated spectral control of luminescence of these UNPs by adding lanthanide ion that acts as a quenching agent for selected wavelengths of luminescence of Tm3+. Erbium (Er3+), which contains an energy level closely matching that of the ultra-violet (UV) energy level of Tm3+ (1D2), was selected as the quenching ion in this study. First, we demonstrated energy transfer between the luminescent ion (Tm3+) and the quenching ion (Er 3+). Subsequently, we demonstrated tuning of the UV luminescence intensity of these UNPs. The desired spectral output of the UNP is dependent on two factors, the selection of the quenching agent and its doping ratio in UNP composition.
AB - Spectral tuning of UV luminescence of upconverting nanoparticles (UNPs) enables development of modern applications of upconversion such as infrared-driven photochemistry. We investigated spectral tuning of luminescence of upconverting nanoparticles composed of NaYF4: Yb3+, Tm3+ (69.5:30:0.5). We demonstrated spectral control of luminescence of these UNPs by adding lanthanide ion that acts as a quenching agent for selected wavelengths of luminescence of Tm3+. Erbium (Er3+), which contains an energy level closely matching that of the ultra-violet (UV) energy level of Tm3+ (1D2), was selected as the quenching ion in this study. First, we demonstrated energy transfer between the luminescent ion (Tm3+) and the quenching ion (Er 3+). Subsequently, we demonstrated tuning of the UV luminescence intensity of these UNPs. The desired spectral output of the UNP is dependent on two factors, the selection of the quenching agent and its doping ratio in UNP composition.
UR - http://www.scopus.com/inward/record.url?scp=85083314221&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85083314221&partnerID=8YFLogxK
U2 - 10.1117/12.2546826
DO - 10.1117/12.2546826
M3 - Conference contribution
AN - SCOPUS:85083314221
T3 - Progress in Biomedical Optics and Imaging - Proceedings of SPIE
BT - Colloidal Nanoparticles for Biomedical Applications XV
A2 - Osinski, Marek
A2 - Kanaras, Antonios G.
PB - SPIE
T2 - Colloidal Nanoparticles for Biomedical Applications XV 2020
Y2 - 1 February 2020 through 3 February 2020
ER -