TY - GEN
T1 - Up-conversion threshold under concentrated sunlight
AU - Arnaoutakis, Georgios E.
AU - Gordon, Jeffrey M.
AU - Katz, Eugene A.
AU - Busko, Dmitry
AU - Richards, Bryce S.
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6/1
Y1 - 2019/6/1
N2 - We investigate the two-photon threshold of rare-earth up-conversion under concentrated sunlight, in a solar furnace that generates an irradiance of up to 2606 suns on the samples. One of the most efficient up-converters currently available, NaYF4: Er3+ [1] was used. We established a threshold by experimentally observing the transition for up-conversion photoluminescence from a quadratic relation to linear relation as solar concentration was increased. We further investigated the role of energy transfer on the threshold, observing the same threshold for a higher Er3+ content of 50%, but a threshold that exceeds 2300 suns at 15% Er3+. In this way, a tangible limit for the benefit and effect of solar concentration on up-conversion can be obtained for photovoltaic [2], [3] and solar thermal applications.
AB - We investigate the two-photon threshold of rare-earth up-conversion under concentrated sunlight, in a solar furnace that generates an irradiance of up to 2606 suns on the samples. One of the most efficient up-converters currently available, NaYF4: Er3+ [1] was used. We established a threshold by experimentally observing the transition for up-conversion photoluminescence from a quadratic relation to linear relation as solar concentration was increased. We further investigated the role of energy transfer on the threshold, observing the same threshold for a higher Er3+ content of 50%, but a threshold that exceeds 2300 suns at 15% Er3+. In this way, a tangible limit for the benefit and effect of solar concentration on up-conversion can be obtained for photovoltaic [2], [3] and solar thermal applications.
UR - https://www.scopus.com/pages/publications/85074636481
U2 - 10.1109/CLEOE-EQEC.2019.8873031
DO - 10.1109/CLEOE-EQEC.2019.8873031
M3 - Conference contribution
AN - SCOPUS:85074636481
T3 - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
BT - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
PB - Institute of Electrical and Electronics Engineers
T2 - 2019 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics Conference, CLEO/Europe-EQEC 2019
Y2 - 23 June 2019 through 27 June 2019
ER -
