Efficient photon upconversion at remarkably low annihilator concentrations in a liquid polymer matrix: when less is more
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Efficient photon upconversion at remarkably low annihilator concentrations in a liquid polymer matrix: when less is more. / Durandin, Nikita A.; Isokuortti, Jussi; Efimov, Alexander; Vuorimaa-Laukkanen, Elina; Tkachenko, Nikolai V.; Laaksonen, Timo.
julkaisussa: Chemical Communications, Vuosikerta 54, Nro 99, 2018, s. 14029-14032.Tutkimustuotos › › vertaisarvioitu
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TY - JOUR
T1 - Efficient photon upconversion at remarkably low annihilator concentrations in a liquid polymer matrix: when less is more
AU - Durandin, Nikita A.
AU - Isokuortti, Jussi
AU - Efimov, Alexander
AU - Vuorimaa-Laukkanen, Elina
AU - Tkachenko, Nikolai V.
AU - Laaksonen, Timo
PY - 2018
Y1 - 2018
N2 - A green-to-blue triplet-triplet annihilation upconversion of 24.5% quantum yield was achieved at a remarkably low 600 μM annihilator concentration in a viscous polymer matrix. This was made possible by utilizing a ZnTPP-based photosensitizer with exceptionally long 11 ms phosphorescence lifetime. Higher 3 mM annihilator concentration resulted in lower 24% upconversion quantum yield.
AB - A green-to-blue triplet-triplet annihilation upconversion of 24.5% quantum yield was achieved at a remarkably low 600 μM annihilator concentration in a viscous polymer matrix. This was made possible by utilizing a ZnTPP-based photosensitizer with exceptionally long 11 ms phosphorescence lifetime. Higher 3 mM annihilator concentration resulted in lower 24% upconversion quantum yield.
KW - triplet-triplet annihilation
KW - triplet-triplet energy transfer
KW - triplet state lifetime
KW - upconversion
KW - triplet fusion
U2 - 10.1039/c8cc07592a
DO - 10.1039/c8cc07592a
M3 - Article
VL - 54
SP - 14029
EP - 14032
JO - Chemical Communications
JF - Chemical Communications
SN - 1359-7345
IS - 99
ER -