http://venturebeat.disqus.com/News about Tech, Business and InnovationenMon, 10 Nov 2008 01:41:40 -0000http://venturebeat.com/2008/10/13/roundup-amazon-vs-ebay-youtube-search-ads-and-more/#comment-3657478<p>The increase of efficiency of "black silicon" by doping it with sulfur and other elements is exciting. Even though commercial products are at least a few years off, an increase in efficiency and eventual drop in price from this technology could change the solar energy field.</p>Outdoor Solar LightsMon, 10 Nov 2008 01:41:40 -0000