The PERCISTAND consortium has become the first to achieve an energy efficiency of 25 percent with a thin-film solar cell. This means that this wafer-thin solar cell generates as much energy as a traditional silicon solar cell.

About the project

Estimations suggest that increased efficiency of photovoltaic (PV) appliances above the Shockley-Queisser single-junction limit is related to the creation of tandem devices. The EU-funded PERCISTAND project will focus on the development of innovative materials and processes for perovskite on chalcogenide tandem appliances. The project will focus on four-terminal tandem solar cell and module prototype testing on glass substrates. The goal is to obtain efficiency, stability and large-scale manufacturability for thin film PV that will be competitive with existing commercial PV technologies. The results of the project will support the EU in regaining predominance in thin film PV research and production.

PERCISTAND’s power conversion efficiency targets are:

  • ≥ 20 % semi-transparent perovskite PV
  • ≥ 10 % NIR-illuminated chalcogenide PV
  • ≥ 30 % tandem cell
  • ≥ 25 % tandem module


TandemPV International Workshop

PERCISTAND partners imec and KIT will present new results on Materials Research for Tandem Solar Cells during the Tandem PV online workshop


UHasselt creates a first iteration of a techno-economic assessment which entails building and validating a bottom-up cost model for thin-film PV modules

Thin-film solar cells generate as much energy as traditional solar cells for the first time

Belgian National Press Release

‘Our solar cells are made from wafer-thin, flexible material, so that you can develop solar panels in all colours and sizes that you can integrate into the façades or roofs of homes.’

Kick-Off meeting of PERCISTAND project

On January 30th and 31st, 2020, the partners of the “Development of all thin-film perovskite on CIS tandem photovoltaics – PERCISTAND – project” met at the Royal Flemish Academy of Belgium for Science and the Arts (KVAB) in Brussels for their kick


Bart Vermang

Bart Vermang

Professor UHasselt/Imec, Coordinator