<p><b>Copyright information:</b></p><p>Taken from "The necessary length of carbon nanotubes required to optimize solar cells"</p><p>http://journal.chemistrycentral.com/content/1/1/22</p><p>Chemistry Central Journal 2007;1():22-22.</p><p>Published online 1 Oct 2007</p><p>PMCID:PMC2075496.</p><p></p