AI Article Synopsis
- Betavoltaic power sources use radioisotope energy to create electricity and are useful for remote applications because they can operate for long periods and have high energy densities.
- To compete with other power sources, their efficiency needs to be improved by optimizing the beta source and selecting better semiconductor absorbers.
- The paper suggests that 4H-SiC and diamond are optimal materials due to their effective energy coupling and electronic properties, while c-BN is also promising due to its ultra-wide bandgap and doping capabilities.
Article Abstract
Betavoltaic power sources based on the conversion of radioisotope energy to electrical power are considered an appealing option for remote applications due to extended period of operation and high energy densities. However, to be competitive with other power sources, their efficiency must be increased. This can be done through optimization of the beta source and selection of the semiconductor absorber. This paper evaluates available on the market and developing wideband gap semiconductors as prospective absorbers with H and Ni sources. Simulation results indicate that among wide band gap materials 4H-SiC and diamond are two optimal semiconductors due to the combination of good coupling efficiencies with isotope sources and good electronic transport properties. Additionally, having good coupling efficiency, an ultra-wide bandgap, and the capability for both n- and p-type doping, c-BN is a promising material for betavoltaic applications.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6659775 | PMC |
| http://dx.doi.org/10.1038/s41598-019-47371-6 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Vacuum electrospray deposition for face-on orientation and interface preservation in organic photovoltaics.
Sci Rep
January 2025
Department of Physics, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul, 03722, Republic of Korea.
Despite recent advancements in organic photovoltaics (OPVs), further improvements in power conversion efficiency (PCE) and device lifetime are necessary for commercial viability. Strategies such as optimizing the molecular orientation and minimizing the charge traps of organic films are particularly effective in enhancing photovoltaic performance. In this study, we successfully utilized vacuum electrospray deposition (VESD) to achieve favourable face-on stacking geometries while preserving the integrity of the interfaces in poly(3-hexylthiophene-2,5-diyl) (P3HT): [6,6]-phenyl-C-butyric acid methyl ester (PCBM) bulk heterojunction (BHJ) films.
View Article and Find Full Text PDFOptimizing solar performance of CFTSe-based solar cells using MoSe as an innovative buffer layers.
Sci Rep
January 2025
College of Integrative Studies, Abdullah Al Salem University, Khaldiya, Kuwait.
In this study, we explore the photovoltaic performance of an innovative high efficiency heterostructure utilizing the quaternary semiconductor CuFeSnSe (CFTSe). This material features a kesterite symmetrical structure and is distinguished by its non-toxic nature and abundant presence in the earth's crust. Utilizing the SCAPS simulator, we explore various electrical specifications such as short circuit current (J), open circuit voltage (V), the fill factor (FF), and power conversion efficiency (PCE) were explored at a large range of thicknesses, and the acceptor carrier concentration doping (N).
View Article and Find Full Text PDFOptimizing Radiation Protection in PET/CT Examinations: Reducing Occupational Exposure During Patient Positioning.
Cureus
December 2024
Department of Emergency and Intensive Care Medicine, Hospital of the University of Occupational and Environmental Health, Fukuoka, JPN.
Objectives The objective of this study was to evaluate the occupational radiation exposure of healthcare workers during positron emission tomography (PET)/CT examinations, focusing on patient positioning and assessing the effectiveness of different radiation protection measures. Methods Thirteen medical workers (physicians, radiological technologists, and nurses) performed PET/CT examinations on 86 patients at a major Japanese hospital from June to August 2019. Occupational doses were measured using a real-time semiconductor dosimeter: RaySafe i2 (Unfors RaySafe, Billdal, Sweden), recording the 1 cm dose equivalent (Hp(10)).
View Article and Find Full Text PDFComputational insights into spin-polarized density functional theory applied to actinide-based perovskites XBkO₃ (X = Sr, Ra, Pb).
Sci Rep
January 2025
Water Management Research Institute, National Water Research Center, Shubra El-Kheima 13411, Cairo, Egypt.
The exploration of perovskite compounds incorporating actinide and divalent elements reveals remarkable characteristics. Focusing on PbBkO, RaBkO, and SrBkO, these materials were studied using density functional theory (DFT) via the CASTEP code to analyze their electronic, optical, and mechanical properties. The results show semiconductor behavior, with respective band gaps of 1.
View Article and Find Full Text PDFVirtual Frisch grid perovskite CsPbBr semiconductor with 2.2-centimeter thickness for high energy resolution gamma-ray spectrometer.
Nat Commun
January 2025
State Key Laboratory of Radiation Medicine and Protection, Collaborative Innovation Center of Radiological Medicine of Jiangsu Higher Education Institutions, and School for Radiological and Interdisciplinary Sciences (RAD-X), Soochow University, Suzhou, China.
High intrinsic detection efficiency is as decisive as high energy resolution. Scaling up detector volume has presented great challenges, preventing perovskite semiconductors from reaching sufficient detection efficiency. We report a hole-only virtual-Frisch-grid CsPbBr detector up to 2.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!