TY - JOUR AB - We demonstrate a photoluminescence based,contactless method to determine the current-voltagecharacteristics of the individual subcells in a multi-junctionsolar cell. The method relies upon the reciprocity relationbetween the absorption and emission properties on a solarcell. Laser light with a suitable energy is used to excitecarriers selectively in one junction and the internal voltagesare deduced from the intensity of the resultingluminescence. The IV curves obtained this way on 1J, 2Jand 6J devices are compared to those obtained usingelectroluminescence. Good agreement is obtained at highinjection conditions while discrepancies at low injection areattributed to in-plane carrier transport. AU - Alonso,Alvarez D AU - Ekins-Daukes,N DO - 10.1109/JPHOTOV.2016.2547583 EP - 1011 PY - 2016/// SN - 2156-3381 SP - 1004 TI - Photoluminescence-Based Current-Voltage Characterisation Of Individual Subcells In Multi-Junction Devices T2 - IEEE Journal of Photovoltaics UR - http://dx.doi.org/10.1109/JPHOTOV.2016.2547583 UR - http://hdl.handle.net/10044/1/30960 VL - 6 ER -
Transition to Zero Pollution is a flagship initiative of the Imperial's Academic Strategy, with a vision to realise a sustainable zero pollution future. The initiative brings researchers from different disciplines together to take a systems approach to tackling pollution in all its forms.