1. Third generation photovoltaics: ultra-high conversion efficiency at low cost;Green;Progress in Photovoltaics: Research Applications,2001
2. Solar Generation 6, Solar Photovoltaic Electricity Empowering The World 2011 www. epia. org
3. R. Gillete 2010 Q2 2010 Performance summary, Market and Project update, First Solar Q2 2010 Earnings call
4. New world record efficiency for Cu(In,Ga)Se2 thin-film solar cells beyond 20%;Jackson;Progress in Photovoltaics: Research Applications,2011
5. http://www. bloomberg. com/news/2011-09-06/solyndra-solar-panel-maker-in-california-files-for-bankruptcy-protection.html