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Uhm, Young Rang; Choi, Byoung Gun; Kim, Jong Bum; Jeong, Dong-Hyuk; Son, Kwang Jae
Nuclear engineering and technology, June 2016, 2016-06-00, 2016-06-01, 2016-06, Letnik: 48, Številka: 3Journal Article
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.
