On Tue, Mar 29, 2011 at 4:37 PM, Eugen Leitl <[email protected]> wrote:
> Meanwhile, water electrolysis has been practical since 1869, > and thin-film photovoltaics continues further its exponential > price decay, at increasing EROEI (43:1 for CdTe, or thereabouts). Some more PRware that sounds promising: http://scienceblog.com/44858/new-ornl-solar-cell-technology-cranks-up-efficiency/ New ORNL solar cell technology cranks up efficiency on April 29, 2011 OAK RIDGE, Tenn., April 29, 2011 – With the creation of a 3-D nanocone-based solar cell platform, a team led by Oak Ridge National Laboratory’s Jun Xu has boosted the light-to-power conversion efficiency of photovoltaics by nearly 80 percent. The technology substantially overcomes the problem of poor transport of charges generated by solar photons. These charges — negative electrons and positive holes — typically become trapped by defects in bulk materials and their interfaces and degrade performance. <snip> -- ((Udhay Shankar N)) ((udhay @ pobox.com)) ((www.digeratus.com))
