photojunction battery

photojunction battery

[¦fōd·ō′jəŋk·shən ‚bad·ə·rē]
(nucleonics)
A nuclear-type battery in which a radioactive material such as promethium-147 irradiates a phosphor which converts nuclear energy into light; the light is then converted to electrical energy by a small silicon junction.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.