Electrophoretic Deposition (EPD) of Radioisotope and Phosphor Composite Layer for Hybrid Radioisotope Batteries and Radioluminescent Surfaces
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United States of America Patent
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Oct 1, 2020
app pub date -
Mar 27, 2019
filing date -
Mar 27, 2019
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Abstract
An electrophoretic deposition (EPD) process forms a radioluminescent phosphor and radioisotope composite layer on a conductive surface of a substrate. In the composite layer formed, the particles of radioisotope are homogeneously dispersed with the radioluminescent phosphor. The radioisotope may be a beta-emitter, such as Ni-63, H-3, Pm-147, or Sr-90/Y-90. By applying the composite layer using the EPD process, the electrode can be configured for betavoltaic, beta-photovoltaic and photovoltaic cells according to further embodiments. A direct bandgap semiconductor device can convert betas and/or photons emitted from composite layer. Methods and choice of materials and components produces a hybrid radioisotope battery, conversion of photons and nuclear decay products, or radioluminescent surfaces.
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