We have not yet received releases to publish all of Dr. Stanbery's presentation, but here are some of the key references used in his slides:
Acknowledgement: Prof. Nate Lewis, CalTech, http://www.its.caltech.edu/~mmrc/nsl/energy.html
Prog.Photovolt.Res.Appl. 5, 309-315(1997)
Luuk Beurskens, ECN Policy Studies, PHOTEX03
Energy Content and Payback, Knapp & Lester, 2000
Ken Zweibel, Thin Films and the System-Driven Approach (SDA) http://www.nrel.gov/ncpv/thin_film/general.html