Alpha-voltaic battery on diamond Schottky barrier diode

Liu, Benjian; Dai, Bing; Liu, Kang; Yang, Lei; Zhao, Junhong; Shu, Guoyang; Lv, Zhijun; Gao, Ge; Yao, Kaili; Bi, Minghao; Xue, Jingjing; Ralchenko, V. G.; Han, Jiecai; Zhu, Jiaqi

doi:10.1016/j.diamond.2018.05.008

Cited by 26 publications

(9 citation statements)

References 36 publications

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“…An open-circuit voltage of 1.13 V and a short-circuit current of 53.4 pA were measured under irradiation by a low-activity 241 Am source. 64 The stable conversion efficiency under low-level irradiations and the better performances of this device with respect to the Si-and SiC-based ones confirmed the high potential of diamond-based materials.…”

Section: Alpha-voltaicsmentioning

confidence: 54%

“…Significant results for diamond Schottky α‐voltaic nuclear batteries have been also obtained using oxygen‐terminated intrinsic CVD diamond layers grown on a B‐doped HPHT diamond. An open‐circuit voltage of 1.13 V and a short‐circuit current of 53.4 pA were measured under irradiation by a low‐activity 241 Am source 64 . The stable conversion efficiency under low‐level irradiations and the better performances of this device with respect to the Si‐ and SiC‐based ones confirmed the high potential of diamond‐based materials.…”

Section: Basic Concepts and Conversion Mechanismsmentioning

confidence: 78%

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Nuclear batteries: Current context and near‐term expectations

Terranova

2022

Intl J of Energy Research

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Summary The batteries fuelled by radio‐isotopes have represented a significant technological solution for planetary science and exploration missions since the beginning of the space era. Now emerging researches and new concepts are making the nuclear batteries attractive also for relevant terrestrial applications. The present survey aims to summarize the evolution of technical programmes and to examine the multidisciplinary skills required to accelerate the transition of nuclear batteries from laboratory prototypes to fully functional systems.

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Section: Alpha-voltaicsmentioning

confidence: 54%

Section: Basic Concepts and Conversion Mechanismsmentioning

confidence: 78%

Nuclear batteries: Current context and near‐term expectations

Terranova

2022

Intl J of Energy Research

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“…This conclusion is also consistent with the results in Bormashov et al, in which a η total of 3.6% was obtained using an alpha source of 2100 μCi/cm 2 plutonium‐238. The ŋ total of 1.41% is higher than our previous work under the same radioactive source irradiation, which is attributed to the higher intrinsic layer quality.…”

Section: Resultsmentioning

confidence: 99%

“…This is another advantage of diamond as a nuclear battery material. The degradation test of the diamond Schottky battery under the illumination of americium‐241 was performed in our previous study . Because of mature synthesis and processing technology, the conversion efficiency of silicon‐based photovoltaic devices can reach 26.7% .…”

Section: Introductionmentioning

confidence: 99%

“…The degradation test of the diamond Schottky battery under the illumination of americium-241 was performed in our previous study. 23 Because of mature synthesis and processing technology, the conversion efficiency of silicon-based photovoltaic devices can reach 26.7%. 24 However, considering the theoretical conversion efficiency and radiation damage, we believe that diamond is more suitable as a material for nuclear batteries than silicon or other semiconductor materials with narrow bandgaps.…”

Section: Introductionmentioning

confidence: 99%

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Effect of americium‐241 source activity on total conversion efficiency of diamond alpha‐voltaic battery

Liu

Ralchenko

et al. 2019

Int J Energy Res

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Summary High‐quality diamond intrinsic layer was epitaxially grown on a IIb‐type boron‐doped diamond substrate. The quality of the epitaxy layer was evaluated by Raman spectroscopy and cross‐polarizer images and compared with other samples. The dark current of the diode was analyzed, revealing a rectification ratio as high as 2 × 109 at ±7 V. Current‐voltage characteristics of the converter under the irradiation of different americium‐241 activity sources were investigated. A maximum total conversion efficiency (ηtotal) of 1.41%, short‐circuit current (Isc) of 6.68 nA/cm2, and open‐circuit voltage (Voc) of 1.06 V from the diamond alpha‐voltaic battery were obtained under the irradiation of an americium‐241 source with a source activity of 8.85 μCi/cm2. The trend for the battery parameters with the increase in the activity of the americium‐241 source was clarified. Parameters Isc and Voc increase with the increase in the radioactive source activity. The ηtotal increases with the increase in the source activity but fluctuates in a certain activity interval with an increase in the fill factor, and then decreases with the increase in radioactive source activity. The research results are significant for the design of nuclear batteries.

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High Efficiency Formamidinium‐Cesium Perovskite‐Based Radio‐Photovoltaic Cells

Gao

Chen

Wan

et al. 2022

Energy & Environ Materials

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Radio‐photovoltaic cell is a micro nuclear battery for devices operating in extreme environments, which converts the decay energy of a radioisotope into electric energy by using a phosphor and a photovoltaic converter. Many phosphors with high light yield and good environmental stability have been developed, but the performance of radio‐photovoltaic cells remains far behind expectations in terms of power density and power conversion efficiency, because of the poor photoelectric conversion efficiency of traditional photovoltaic converters under low‐light conditions. This paper reports an radio‐photovoltaic cell based on an intrinsically stable formamidinium‐cesium perovskite photovoltaic converter exhibiting a wide light wavelength response from 300 to 800 nm, high open‐circuit voltage (VOC), and remarkable efficiency at low‐light intensity. When a He ions accelerator is adopted as a mimicked α radioisotope source with an equivalent activity of 0.83 mCi cm−2, the formamidinium‐cesium perovskite radio‐photovoltaic cell achieves a VOC of 0.498 V, a short‐circuit current (JSC) of 423.94 nA cm−2, and a remarkable power conversion efficiency of 0.886%, which is 6.6 times that of the Si reference radio‐photovoltaic cell, as well as the highest among all radio‐photovoltaic cells reported so far. This work provides a theoretical basis for enhancing the performance of radio‐photovoltaic cells.

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Alpha-voltaic battery on diamond Schottky barrier diode

Cited by 26 publications

References 36 publications

Nuclear batteries: Current context and near‐term expectations

Nuclear batteries: Current context and near‐term expectations

Effect of americium‐241 source activity on total conversion efficiency of diamond alpha‐voltaic battery

High Efficiency Formamidinium‐Cesium Perovskite‐Based Radio‐Photovoltaic Cells

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