Betavoltaic energy conversion
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Cited by (79)
Electrochemical enhanced betavoltaic cells based on ZrO<inf>2</inf>@TiO<inf>2</inf> nanorod arrays with type-I band alignment
2023, Applied Surface ScienceCitation Excerpt :Owing to the characteristics of high energy density, long-life, and insensitivity to the environment, betavoltaic cells (BCs) are considered as an ideal energy source for powering low-power electronics, which can directly convert radioactive decay energy to electrical energy through the impact ionization of incident beta particles in semiconductors to create electron-hole pairs (EHPs) that are drawn off as current. Recently, several reviews on BCs have given some valuable suggestions to help us well understanding the underlying physics of betavoltaic effect [1–3]. Olsen’s research shows that the theoretical energy conversion efficiency (ECE) can achieve as high as ∼35% for BCs using wide-bandgap semiconductors (WBGSs) [1,4].
Characteristics comparison and Monte-Carlo simulation of isotopes used in betavoltaics for MEMS application
2022, Applied Radiation and IsotopesSummary of the design principles of betavoltaics and space applications
2022, Photovoltaics for Space: Key Issues, Missions and Alternative TechnologiesFree-standing ZnO nanorod arrays modified with single-walled carbon nanotubes for betavoltaics and photovoltaics
2020, Journal of Materials Science and TechnologyCitation Excerpt :Solar cells, fuel batteries and chemical batteries are not an ideal candidate for long-lived applications due to their individual limitations, e.g. out-of-work for solar cells at night, periodic recharge or replacement for fuel and chemical batteries. Radioisotope-based power sources serving as a self-sustainable power source, are considered to have an opportunity for addressing long-lived applications due to their long lifetime, high-energy density, and insensitivity to environment [1–4]. For converting radioactive decay energy to electrical energy, it is suggested that the direct energy conversion mechanism based on betavoltaic effect is a promising technique [5,6].
Highly stable GaN-based betavoltaic structures grown on different dislocation density substrates
2020, Solid-State ElectronicsCitation Excerpt :It was pointed out by Klein [4] that the semiconductors with larger bandgap should have better betavoltaic cell efficiency. Fortunately, two very important modern electronic materials (SiC and GaN), have their betavoltaic efficiency theoretically predicted to be close to optimum [5,6]. GaN has many advantages for betavoltaic cell construction including large bandgap, radiation hardness [7], and high material density which increases the absorption of beta particles and allows using thinner semiconductor layers [8].