Alpha voltaic batteries and methods thereof
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United States of America Patent
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Jan 11, 2011
Grant Date -
Oct 20, 2005
app pub date -
Mar 29, 2005
filing date -
Mar 31, 2004
priority date (Note) -
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Abstract
An alpha voltaic battery includes at least one layer of a semiconductor material comprising at least one p/n junction, at least one absorption and conversion layer on the at least one layer of semiconductor layer, and at least one alpha particle emitter. The absorption and conversion layer prevents at least a portion of alpha particles from the alpha particle emitter from damaging the p/n junction in the layer of semiconductor material. The absorption and conversion layer also converts at least a portion of energy from the alpha particles into electron-hole pairs for collection by the one p/n junction in the layer of semiconductor material.
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