WebA betavoltaic power source for transportation devices and applications is disclosed, wherein the device having a stacked configuration of isotope layers and energy conversion layers. The isotope layers have a half-life of between about 0.5 years and about 5 years and generate radiation with energy in the range from about 15 keV to about 200 keV. WebOct 1, 2012 · For the GaN-based p-n junction battery, the maximum output power density, filling factor, energy conversion efficiency and total energy conversion efficiency are 0.359 μ W / c m 2, 94.6 %, 23.2 % and 6.96 %, respectively. For the GaN-based Schottky barrier battery, the output performance is related to the selection of the Schottky metal.
[PDF] Fabrication of SiC p-i-n betavoltaic cell with 63Ni irradiation ...
WebSep 1, 2024 · Betavoltaic batteries have advantages over other batteries due to their high energy density, long life, insensitivity to the environment, and small size. This study aims to design a new structure for betavoltaic batteries using porous GaN with a wide energy bandgap. Many nanowires, coated with graphene, are formed on the surface of GaN. WebAug 17, 2024 · In this work, a GaN-based (hexagonal) betavoltaic battery with N i 63 source was simulated by Monte Carlo codes and COMSOL Multiphysics, and the energy converters, including p–n junction and p–i–n junction, were compared and optimized. We analyzed the effects of thickness and doping concentration of each region on the battery … txixt.top
William Alan Doolittle - Google Scholar
WebFeb 17, 2024 · The theoretical energy conversion efficiency can reach 25%. 55 Honsberg C et al. pointed out that the theoretical energy conversion efficiency of transducer devices based on AlGaN materials can reach 27%. 56 San et al. reported a betavoltaic battery … WebFeb 17, 2024 · In recent years, betavoltaic batteries have become an ideal power source for micro electromechanical systems. Betavoltaic battery is a device that converts the decay energy of beta emitting radioisotope sources into electrical energy using transducers. They have the advantages of high energy density, long service life, strong anti … WebDec 21, 2024 · GaN is a durable, radiation hard and wide-bandgap semiconductor material, making it ideal for usage with betavoltaic batteries. This paper describes the design, fabrication and experimental testing of 1 cm 2 GaN-based betavoltaic batteries (that … tx Joseph\u0027s-coat