The light produced by the sun cell is mostly in the blue range of the spectrum with little infrared light produced. That spectrum is a good match for a solar cell.
On Sat, Jul 19, 2014 at 2:12 PM, Terry Blanton <[email protected]> wrote: > On Sat, Jul 19, 2014 at 1:33 PM, Orionworks - Steven Vincent Johnson > <[email protected]> wrote: > > Got a response for Dr. Mills: > > > > > > > > The cell has a window to protect the PV, and the PV is warranted for 25 > > years at the rated power. We are working directly with six > manufactures. > > They see this as an enormous market opportunity. These concerns are > > nonexistent > > :-) > > I wish I had his confidence. > > One issue is the term "at rated power". A good deal is known about > the effect of concentrated light on photovoltaics (cpv). Up to 300 > suns have been demonstrated commercially; but, these systems must have > huge heat sinks to remove heat from the pv cells. Heat is one cause > of rapid degradation of the p/n junction. > > A pv cell operates like a reverse LED. The life of the LED depends on > how long you can maintain the separation of dopants in the junction. > Rapid migration occurs at high temperatures resulting in a reduction > of the amount of light produced by the LED. > > Pulsed power will actually cause an inertial effect on the dopants > increasing the degradtion rate. Little is known about this effect in > pv cells; but, a great deal has been learned in glass based lasers > thanks to the NIF. So much has been discovered that it has cast doubt > on whether a sustained fusion reaction is commercially feasible using > this method. > >
