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<a accesskey="3" href="page.php?w=multiple_exciton_generation&amp;p=2">3.Next</a>
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<p>In <a href="page.php?w=solar_cell">solar cell</a> research, <b>carrier multiplication</b> is the phenomenon wherein the absorption of a single <a href="page.php?w=photon">photon</a> leads to the excitation of multiple electrons from the valence band to conduction band. In the <a href="page.php?w=Theory_of_solar_cells">theory of a conventional solar cell</a>, each photon is only able to excite one electron across the <a href="page.php?w=band_gap">band gap</a> of the <a href="page.php?w=semiconductor">semiconductor</a>, and any excess energy in</p><p>
<a accesskey="3" href="page.php?w=multiple_exciton_generation&amp;p=2">3.Next</a>
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