@inproceedings{upm40905,
       booktitle = {AIP Conference Proceedings},
           month = {April},
          volume = {1679},
           pages = {050002--1-050002-6},
            year = {2015},
           title = {Why can't I measure the external quantum efficiency of the Ge subcell of my multijunction solar cell?},
         journal = {AIP Conference Proceedings},
             doi = {10.1063/1.4931510},
          author = {Barrig{\'o}n Monta{\~n}{\'e}s, Enrique and Espinet Gonz{\'a}lez, Pilar and Contreras, Yedileth and Rey Llorente, Ignacio del},
        abstract = {The measurement of the external quantum efficiency (EQE) of low bandgap subcells in a multijunction solar cell can be sometimes problematic. In particular, this paper describes a set of cases where the EQE of a Ge subcell in a conventional GaInP/GaInAs/Ge triple-junction solar cell cannot be fully measured. We describe the way to identify each case by tracing the I-V curve under the same light-bias conditions applied for the EQE measurement, together with the strategies that could be implemented to attain the best possible measurement of the EQE of the Ge subcell.},
            issn = {0094-243X},
             url = {https://oa.upm.es/40905/}
}