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science archives: 1 2 3 4 5 6 7 8 9 10 11 12 III-2004: 02 02-2 03 09 18 22 28 IV-2004: 08 09 11 11-2 27 V-2004: 06 07 08

science and technology

advance in solar cell physics

“ ....experimentally demonstrated a phenomenon in which semiconductor nanocrystals respond to photons by producing multiple electrons. The innovation has potential applications in a new generation of solar cells that would produce as much as 35 percent more electrical output than current solar cells.”
—
“Although the Los Alamos scientists have not yet built a working PbSe nanocrystal solar cell, they are the first to demonstrate the ability to use impact ionization to generate more excitons and hence a greater electrical current in the solar cell configuration......”

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