Methods and Systems for Controlling Phonon-Scattering
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United States of America Patent
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Nov 26, 2015
app pub date -
Dec 20, 2013
filing date -
Dec 20, 2012
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Abstract
Structures and methods for controlling phonon-scattering are provided. In some embodiments, a metamaterial structure comprises a light absorbing layer (16) capable of absorbing solar energy and converting the absorbed energy into electrical current, a first patterned layer (14) disposed on a light absorbing surface of the light absorbing layer (16), the first patterned layer (14) being configured to increase light absorption in the light absorbing layer (16), and a second patterned layer (60) disposed in proximity to the light absorbing layer (16), the second patterned layer (60) being configured to control phonon-scattering by storing or protecting the hot electron energy in the light absorbing layer (16).
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