Dear colleagues and PV-friends, welcome to the n-PV workshop in Hamelin!

In coordination with the Silicon PV Conference the nPV workshop 2021 will take place in Hamelin. The nPV workshop will feature state of the art scientific presentations, technology overviews, high-level industrial talks, as well as animated debates.

In the future, module efficiency increase will be a key to further lower down the cost of electricity or to better use surfaces available on buildings, where efficiency can give a strong price boost. Solar cells based on n-type wafers holds world-record efficiency and make for the most efficient modules on the market.  Several gigawatts of n-type PERT, n-type cells with full rear passivated contacts, IBC cells and heterojunction structures are on the market, or entering the market. But considering the improvements to p-type PERC solar cells, which occupies close to 90% of the market, with amazing improvements to the material quality, LID and LETID control, what role will play n-type technologies in the futures ? This workshop will treat some of the hottest topic, including giving tentative answer to some of the following questions:

Will there be a convergence in the material quality for n-type and p-type wafers when high performance materials are required (for cells >24%) ? Are their remaining intrinsic limitation to p-type materials for mass production and are n-type materials and solar cells really more stable than p-type ? Should the price gap between p-type and n-type material shrink in the future ? Which processing sequences will allow modules to reach the highest efficiency and will it be for mainstream markets or for selected applications ?

If you want to find answers to these questions and to many more, then you have found the right place and event ! nPV workshop in Hamelin, April 21/22 2020 !

Looking forward to meeting you

Prof. Christophe Ballif, co-Chair

EPFL&CSEM, Switzerland