25 Nov '13, 6pm

#NANOMend #R2RCIGS ZSW produces tin and zinc ink printing process with 10.3% thin-film conv... #Nano #CIGS #Solar

The copper zinc tin sulfide (CZTS) world record is currently held by IBM at 11.1%. Verified by the Fraunhofer Institute for Solar Energy Systems ISE, Zentrum für Sonnenenergie (ZSW) has achieved 10.3% conversion efficiency (cell; 0.5cm2) with Kesterite absorber material using a printing process rather than by conventional low temperature vacuum techniques. "The new compound is similar to CIGS, however, instead of indium and gallium, it contains the abundantly available elements tin and zinc" said, Prof. Dr. Michael Powalla, ZSW board member and head of the Photovoltaics Division. "During the Kesterite solar cell manufacturing process, substrate glass is coated with a non-toxic ink solution containing the preferred elements - without requiring any complex vacuum technology." The resulting precursor layer is subsequently selenised in a heating process, with the remaining pro...

Full article: http://www.pv-tech.org/news/zsw_produces_tin_and_zinc_ink...

Tweets