Erratum to "Interconnection of busbar‐free back contacted solar cells by laser welding" Progress in Photovoltaics: Research and Applications 2015; 23:1057–1065. (August 2015) - Schulte‐Huxel, Henning; Blankemeyer, Susanne; Merkle, Agnes; Steckenreiter, Verena; Kajari‐Schröder, Sarah; Brendel, Rolf