CIGS thin-film module producer Avancis has reported a record conversion efficiency of 17.9% with a 30 x 30 cm² champion mini-module, certified by Fraunhofer ISE.
CIGS thin-film module producer Avancis has reported a record conversion efficiency of 17.9% with a 30x30 cm² champion mini-module, certified by Fraunhofer ISE.
Avancis said that the mini-module was based on a mass-produced CIGS absorber from its production plant in Torgau, Germany, deploying an optimizsed indium-based buffer layer. Material yield was said to have been enhanced by a dry vacuum coating processes. The improvement in efficiency was achieved by a modified design with reduced cell width, optimised ZnO: Al front contact and through the improved application of laser processes to reduce the dead zone between the series-connected cells.
Dr. Jörg Palm, CTO of Avancis said: “This achievement is not just another world record for CIGS solar modules, it generally shows the unbroken dynamics of thin-film development. Transferring that result into production would lead to CIGS modules with the impressive power of 170 Wp on a ‘PowerMax’ product size of 1m².”
Avancis has previously announced plans to build a 300MW plant in China, after being acquired by CNBM Group in 2014.
Going into its fifth year over 200 delegates from 150 companies and 20 countries representing the PV supply chain will gather in Malaysia to discuss the technology roadmaps for PV cell advancement in GW markets. The scope of the event has been expanded this year, to cover developments in wafer supply and thin-film investments and technologies alongside all the regular benefits to all stakeholders tracking PV technology and investment trends for the next 5 years.