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학술지 Evaluation of a Betavoltaic Energy Converter Supporting Scalable Modular Structure
Cited 1 time in scopus
저자
강태욱, 김진주, 박성모, 손광재, 박경환, 이재진, 강성원, 최병건
발행일
201904
출처
ETRI Journal, v.41 no.2, pp.254-261
ISSN
1225-6463
출판사
한국전자통신연구원 (ETRI)
DOI
https://dx.doi.org/10.4218/etrij.2018-0022
협약과제
16PB7600, 외부충전없이 반영구적으로 사용이 가능한 10mWh/cm2급 동위원소기반 전고상(全固相) 하이브리드 전지 원천, 최병건
초록
© 2018 ETRI Distinct from conventional energy-harvesting (EH) technologies, such as the use of photovoltaic, piezoelectric, and thermoelectric effects, betavoltaic energy conversion can consistently generate uniform electric power, independent of environmental variations, and provide a constant output of high DC voltage, even under conditions of ultra-low-power EH. It can also dramatically reduce the energy loss incurred in the processes of voltage boosting and regulation. This study realized betavoltaic cells comprised of p-i-n junctions based on silicon carbide, fabricated through a customized semiconductor recipe, and a Ni foil plated with a Ni-63 radioisotope. The betavoltaic energy converter (BEC) includes an array of 16 parallel-connected betavoltaic cells. Experimental results demonstrate that the series and parallel connections of two BECs result in an open-circuit voltage V oc of 3.06 V with a short-circuit current I sc of 48.5혻nA, and a V oc of 1.50혻V with an I sc of 92.6혻nA, respectively. The capacitor charging efficiency in terms of the current generated from the two series-connected BECs was measured to be approximately 90.7%.
키워드
beta ray, betavoltaic cell, betavoltaic device, betavoltaic energy conversion, energy harvesting
KSP 제안 키워드
Capacitor charging, Charging efficiency, Conventional energy, DC voltage, Electric power, Energy Conversion, Energy Harvesting(EH), Ni foil, Open circuit voltage(VOC), P-i-n, Parallel connected
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