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The tandem photovoltaic conversion device comprises at least one top photovoltaic cell unit and one bottom photovoltaic cell unit laminated along a light transmitting direction and electrically connected, wherein said top cell unit is a dye sensitised or semiconductor nanoparticle solar cell and wherein said bottom cell unit is selected among p-n junction semiconductor based cells.
Christophe Ballif, Aïcha Hessler-Wyser, Antonin Faes, Umang Bhupatrai Desai, Kléber Nicolet-dit-Félix
Michael Graetzel, Shaik Mohammed Zakeeruddin, Felix Thomas Eickemeyer
Christophe Ballif, Alessandro Francesco Aldo Virtuani, Luca Gnocchi