Erratum to “Improved Photocurrent in Cu(In,Ga)Se$_2$ Solar Cells: From 20.8% to 21.7% Efficiency With CdS Buffer and 21.0% Cd-free” [Sep 15 1487-1491]

There is a minor typo in the above paper (ibid., vol. 5, no. 5, pp. 1487-1491, Sep. 2015). In Table II, it shoud read 1.5E5 instead of 1.5E15 for A of ZnO:Al. This only leads to a (systematic) minor error but affects neither our findings nor our conclusions.