Alpha voltaic batteries and methods thereof

Details Alpha voltaic batteries and methods thereof Alpha voltaic batteries and methods thereof

2011-01-11

2011-01-11

Yuan, Dah-Wei D (Department: 1795)

Chemistry: electrical current producing apparatus, product, and

Radio active material containing

Reexamination Certificate

active

07867640

ABSTRACT:
An alpha voltaic battery includes at least one layer of a semiconductor material comprising at least one p
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
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
junction in the layer of semiconductor material.

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Pfann et al., “Radioactive and Photoelectric p-n Junction Power Sources,” Journal of Applied Physics 25(11):1422-1434 (1954).
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Gailey et al, “Photovoltaic Development For Alpha Voltaic Batteries,” NASA Glenn Research Center, pp. 106-109 (2005) (http://ieexplore.ieee.org/iel5/9889/31426/01488080.pdf?arnumber=1488080).

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