More allegations of instances of plagiarism in articles co-authored Rao have been reported. Written with S. Venkataprasad Bhat and Krupanidhi, Rao's paper in 2010 about the effect of nanoparticles on solar cells in "Applied Physics Express" contains texts that are very similar to those of a paper by Matheu "et al." from "Applied Physics Letters" in 2008, which it did not even cite. Rao had stated, referring to the 2011 incident, that " I have ever stolen an idea or a result (in) my entire life, (then) hang me." But Rao's article contains similar study to and duplicated figures with that of Matheu "et al." An article in the "Journal of Luminescence" in 2011, written with Chitara, Nidhi Lal and Krupanidhi, contains 20 unattributed lines which appear to be copied from articles by Itskos "et al." in "Nanotechnology" (June 2009 issue) and Heliotis "et al." in "Advanced Materials" (January 2006 issue)"." Another article in "Nanotechnology", written also with Chitara and Krupanidhi, uses six lines from the 1995 article by Huang "et al". in "Applied Physics Letters."