UNSW School of Photovoltaic & Renewable Energy Engineering
Four-terminal bifacial perovskite on silicon tandem devices: Concept, devices, energy yield and outdoor results
Gianluca Coletti - TNO Energy Transition

Gianluca Coletti, at UNSW SPREE, 13 February 2020

Gianluca Coletti (34Min)

TNO Energy Transition

Gianluca Coletti - TNO Energy Transition

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With the approaching of silicon solar cell practical efficiency limit, the PV community is turning towards tandem devices. These are expected to be introduced in the market in 3-5 years’ time. When setting performance and cost target, an innovator has to consider the market requirements and expectations at the time of market entrance. By then bifacial modules will have a significant market share contributing to boost the energy yield of conventional PV plants. Combining tandem technology with bifaciality provides the best of the two worlds in a module that has high performance and high energy yield. In this seminar the potential and the successful fabrication of the first bifacial four-terminal (4T) tandem devices and minimodules will be presented. These combine bifacial silicon bottom cell with top perovskite minimodules. Energy yield calculation of the bifacial versus monofacial configurations and the outdoor measurements are reported. We conclude by showing recent results of the scaling-up to large area.

To read Gianluca Coletti and team's paper: https://doi.org/10.1021/acsenergylett.0c00682

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Brief Bio

Gianluca Coletti (PhD) is Program Manager of PV Tandem Technology and Applications at TNO - Solliance in the Netherlands. He is also Adjunct Associate Professor at UNSW Sydney, in Australia. Gianluca Coletti has a Master in Physics from the University of Rome “La Sapienza” in Italy and obtained his PhD at the University of Utrecht in the Netherlands. From 2000 to 2003 worked at the research lab of Eurosolare SpA (Italy), developing inline methods for manufacturing of industrial solar cell and from 2004 to 2018 worked as senior research at ECN Solar Energy (the Netherlands), developing advanced industrial cell concepts and silicon wafers specifications. His research focuses on the development and technology transfer of innovative cells and modules technologies for single junction and tandem modules.