High-energy beta-particle source for betavoltaic power converter
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United States of America Patent
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Apr 14, 2015
Grant Date -
Jul 26, 2012
app pub date -
Nov 1, 2011
filing date -
Jan 20, 2011
priority date (Note) -
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Abstract
A power converter comprises a nuclear radiation emitter having a first side and a second side, wherein the nuclear radiation emitter comprises a radiation-emitting radioisotope, a plurality of semiconductor substrates disposed over the first side of the nuclear radiation emitter, wherein each of the plurality of semiconductor substrates comprises a junction for converting nuclear radiation particles to electrical energy, and at least one high-density layer, wherein the high density layer has a density that is higher than a density of the semiconductor substrates, and wherein the high-density layer is disposed between two of the plurality of semiconductor substrates.
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