Solliance, a Dutch-German-Flemish thin-film photovoltaics research initiative and Imec, the research and innovation hub in nanoelectronics, energy, and digital technologies, reported that they improved the efficiency of their 4x4cm² perovskite module. Industrial partners of the Solliance research initiative include Solartek, Dyesol, and Panasonic.
The module achieved a certified conversion efficiency of 12.4%, which they assert is amongst the highest for this size of perovskite modules. Fraunhofer ISE independently measured the efficiency of the solar module using long-term maximum power point (MPP) tracking over ten minutes. With this measurement, the module reportedly demonstrated exceptional stability.
Solliance says that perovskite microcrystals can be made into thin, light-weight, semitransparent modules that could eventually be integrated into building materials such as curved construction elements or even windows. Imec and Solliance focus on developing scalable, industrial processes to fabricate large-area modules perovskite modules. Eventually, the two organizations want to make such perovskite modules suitable for seamless integration in customized PV systems.
Solliance says that the perovskite modules were made at imec using a superior recipe for the module’s active layer and a process that achieves a very high aperture area efficiency combined with the high operational stability for the device.
The current design connects eight cells in series using a low area loss interconnection technology based on laser and mechanical patterning. This optimization translates to about 90% of the designated illumination area of 16cm2 contributing to the energy generation, Solliance said.
Tom Aernouts, Solliance program manager and group leader for thin-film photovoltaics at imec commented, “In a few years time, we have made rapid progress not only on conversion efficiencies for single cells but are now also consolidating this at module level for this type of thin-film photovoltaics.”
Imec plans to showcase its silicon and perovskite photovoltaic technologies at SNEC, a global PV trade show, April 19-21, 2017 (Shanghai New Int’l Expo Center, Shanghai, China) Booth E2.573.