1. First Solar, Inc. Announces Fourth Quarter and Year-end 2010 Financial Results http://investor.firstsolar.com/phoenix.zhtml?c=201491&p=irolnewsArticle& ID=1532742.
2. New CIGS Solar Cell Efficiency Record, January 24, 2013 http://pv-tech.org/news/empa_achieves_record_efficiency_for_converting_sunlight_into_electricity?utm_source=PV- Tech&utm_campaign=19182a86cd-PV_Tech_Thin_Film_Newsletter_24_January_2013&utm_medium=email.
3. Singh VP, McClure JC, Lush GB, Wang W, Wang X, Thompson GW, Clark E. Thin film CdTe-CdS hetero-junction solar cells on lightweight metal substrates. Solar Energy Materials Solar Cells 1999;59: 145-61.
4. Hodges DR. Development of CdTe thin film solar cells on flexible foil substrates, PhD Thesis, University of South Florida, 2009.
5. Drayton J, Vasko A, Gupta A, Compaan AD. Magnetron sputtered CdTe solar cells on flexible substrates. Proc. 31st IEEE Photovoltaic Specialists Conf., Florida, USA; 2005, pp. 406-409.