RT info:eu-repo/semantics/article T1 Alternative and fully experimental procedure for characterizing down-shifters placed on photovoltaic devices. A1 Guerrero-Lemus, Ricardo A1 Sanchiz, Joaquín A1 Sierra, Marta A1 Martín, Inocencio R. A1 Hernández Rodríguez, Cecilio A1 Borchert, Dietmar K1 Solar cells K1 Downshifting K1 Europium K1 Silicon AB In this work, we propose an alternative and fully experimental procedure based only on external quantum efficiency (EQE) measurements for characterizing the efficiency and transmittance of downshifters placed on photovoltaic (PV) devices. The experimental setup requires two PV devices as references, one of them showing a zero EQE in the downshifting spectral range. Therefore, the results obtained are independent of the quantum efficiency of the device, easing the analysis and comparison between experimental results. Also, this method avoids complex theoretical modeling proposed in other works. Those theoretical models are usually based on approximations and/or that require some input parameters difficult to determine without a wide range of experimental equipment in the lab. SN 0927-0248 YR 2018 FD 2018 LK http://riull.ull.es/xmlui/handle/915/35826 UL http://riull.ull.es/xmlui/handle/915/35826 LA en DS Repositorio institucional de la Universidad de La Laguna RD 05-nov-2024