Japan-based module manufacturer Solar Frontier has claimed a new world record for thin-film solar cell efficiency. In joint research with the National Research and Development Agency’s New Energy and Industrial Technology Development Organization (NEDO) of Japan, Solar Frontier achieved 22.9% conversion efficiency on a 1 cm2 cell using its copper indium selenium (CIS) technology.
Independently verified by the National Institute of Advanced Industrial Science and Technology (AIST) in November, this new record is 0.3 percentage points above the previous world record of 22.6%, which was set by the Germany-based Center for Solar Energy and Hydrogen Research Baden-Württemberg (ZSW) in 2016 and had beaten Solar Frontier’s earlier high of 22.3% reached in 2015.
According to Solar Frontier, this latest record was achieved through such technologies as CIS absorber engineering and enhanced surface treatment of the absorber layer, which demonstrate the steady progression of the company’s thin-film technology. Solar Frontier expresses its gratitude to everyone for their cooperation in achieving this new record, namely NEDO and AIST. The company says it plans to build on its results.