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Development of nuclear micro-battery with solid tritium source.

Nuclear Power Laboratory, Korea Electric Power Research Institute, 65 Munji-Ro, Yuseong-Gu, Daejeon, Republic of Korea.
Applied radiation and isotopes: including data, instrumentation and methods for use in agriculture, industry and medicine (Impact Factor: 1.09). 03/2009; 67(7-8):1234-8. DOI: 10.1016/j.apradiso.2009.02.064
Source: PubMed

ABSTRACT A micro-battery powered by tritium is being developed to utilize tritium produced from the Wolsong Tritium Removal Facility. The 3D p-n junction device has been designed and fabricated for energy conversion. Titanium tritide is adopted to increase tritium density and safety. Sub micron films or nano-powders of titanium tritide is applied on silicon semiconductor device to reduce the self absorption of beta rays. Until now protium has been used instead of tritium for safety. Hydrogen was absorbed up to atomic ratio of approximately 1.3 and approximately 1.7 in titanium powders and films, respectively.

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