DEVICES AND METHODS FOR ABSORBING LIGHT
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United States of America Patent
Stats
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N/A
Issued Date -
Jun 26, 2014
app pub date -
Sep 28, 2011
filing date -
Sep 30, 2010
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
A light-absorbing device and method employ a series of photon-absorbing semiconductor substructures. A first semiconductor substructure provides first and second energy states. A difference between the first and second states being such as to cause an electron to be promoted from the first state to the second state upon absorption of a photon of a first energy. A second semiconductor substructure provides third and fourth energy states. The third state is arranged to receive the electron from the second state. A difference between the third and fourth states being such as to cause the electron to be promoted from the third state to the fourth state upon absorption of a subsequent photon of a second energy. The third state has a lower energy than the second state, such as to cause the electron to dissipate energy as it passes from the second state to the third state.
First Claim
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