Nuclear Engineering and Technology (Jun 2016)

Study of a Betavoltaic Battery Using Electroplated Nickel-63 on Nickel Foil as a Power Source

  • Young Rang Uhm,
  • Byoung Gun Choi,
  • Jong Bum Kim,
  • Dong-Hyuk Jeong,
  • Kwang Jae Son

DOI
https://doi.org/10.1016/j.net.2016.01.010
Journal volume & issue
Vol. 48, no. 3
pp. 773 – 777

Abstract

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A betavoltaic battery was prepared using radioactive 63Ni attached to a three-dimensional single trenched P–N absorber. The optimum thickness of a 63Ni layer was determined to be approximately 2 μm, considering the minimum self-shielding effect of beta particles. Electroplating of radioactive 63Ni on a nickel (Ni) foil was carried out at a current density of 20 mA/cm2. The difference of the short-circuit currents (Isc) between the pre- and postdeposition of 63Ni (16.65 MBq) on the P–N junction was 5.03 nA, as obtained from the I–V characteristics. An improved design with a sandwich structure was provided for enhancing performance.

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