Multi-level radioisotope batteries based on 60Co γ source and Radio-voltaic/Radio-photovoltaic dual effects

Xiaohong, Guo; Liu, Yunpeng; Xu, Zhiheng; Jin, Zhangang; Li, Kai; Yuan, Zicheng; Gong, Pin; Tang, Xiaobin

doi:10.1016/j.sna.2018.04.010

Cited by 14 publications

(15 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In the past decade, investigations on the design of the device structure , [4][5][6] application of various scintillators (organic or inorganic ones), 7 effect and optimization of physical parameters, [8][9][10] and coupling between scintillators and PVDs have been carried out to improve the NB e ciency. 11 Despite the power output and e ciency of NBs have been improved signi cantly, the scintillators employed in these researches were mainly conventional transition or rare earth metal doped phosphors, 7,12,13 which typically possess short emission wavelength or low light yield (LY).…”

Section: Main Textmentioning

confidence: 99%

“…Also, it is reported that taking full advantage of the direct and indirect conversion approaches can achieve better device performance. 4,40 Therefore, we should make a balance between scintillator lm thickness and X-ray absorption. With the increase of scintillator lm thickness, the output power showed a rst rising and then decline trend.…”

Section: Characterization Of Nuclear Batterymentioning

confidence: 99%

See 1 more Smart Citation

Mn2+ Induced Significant Improvement and Robust Stability of Radioluminescence in Cs3Cu2I5 for High Performance Nuclear Battery

Zeng

Chen

et al. 2020

Preprint

View full text Add to dashboard Cite

Fluorescent type nuclear battery (NB) consisting of scintillator and photovoltaic device (PVD) enables semipermanent power source for both small and large devices working under harsh circumstances without instant energy supply. In spite of the progress of device structure design, the development of scintillators with high light yield (LY) and longer emission wavelength catering to PVDs is far behind. Here, a novel Cs3Cu2I5: Mn scintillator, which exhibits an ultrahigh LY of ~ 67000 ph/MeV at an emission wavelength of 564 nm is presented, and this is the highest value at such a long wavelength based on low cost precursors. Besides, doping and intrinsic features endow Cs3Cu2I5: Mn with robust thermal stability and irradiation hardness that 71% or > 90% of the initial radioluminescence (RL) intensity can be maintained in an ultra-broad temperature range of 77 K-433 K or after a total irradiation dose of 38.7 Gy at 333 K, respectively. These superiorities allow the fabrication of an efficient and stable NB, which showed an output improvement of 337% respect to that without scintillator. Luminescence mechanisms including self-trapped exciton, energy transfer, and impact excitation are proposed for the dramatic RL improvement. It is expected that such a new and robust scintillator will open a window for the fields of NBs and radiography.

show abstract

Section: Main Textmentioning

confidence: 99%

Section: Characterization Of Nuclear Batterymentioning

confidence: 99%

Mn2+ Induced Significant Improvement and Robust Stability of Radioluminescence in Cs3Cu2I5 for High Performance Nuclear Battery

Zeng

Chen

et al. 2020

Preprint

View full text Add to dashboard Cite

show abstract

“…In our previous work, a calculation model for the limit output parameters of the dual effect isotope batteries have been established. Self‐absorption effects of scintillators need to be considered during the calculation of the RPV effect.…”

Section: Optimization Design Of Multilevel Structurementioning

confidence: 99%

“…A multilevel structure was adopted to realize the gradual utilization of γ rays energy in consideration the strong penetration of γ rays. Previous work demonstrated that the energy conversion efficiency of the RV/RPV dual effect batteries is only 0.0235% because of the low utilization of 60 Co γ rays in the two‐level energy conversion structure.…”

Section: Introductionmentioning

confidence: 99%

“…To solve the problems mentioned above and improve the performance of the radioisotope batteries in practical applications, we proposed a novel radio‐voltaic/radio‐photovoltaic (RV/RPV) dual effect multilevel isotope batteries based on a gamma (γ) radioactive source. This isotope battery generates electricity by the RV/RPV dual effects through the interaction between γ rays and scintillator layers and volt layers.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Enhanced novel dual effect isotope batteries: Optimization of material and structure

et al. 2019

Self Cite

View full text Add to dashboard Cite

Summary Materials and structures of radio‐voltaic/radio‐photovoltaic (RV/RPV) dual effect isotope batteries were optimized in this paper. The response relationship between different types of volt layer and the dual effect was studied. The GaAs volt layer with a high band gap can easily obtain a higher voltage output than the Si volt layer. Dual effect multilevel isotope batteries achieved better output performance by using the CsI scintillator due to its high photon yield. The CsI scintillator combined with the GaAs volt layer showed good spectral matching property, which is conducive to improve the RV/RPV dual effect isotope batteries. The overall scale of the multilevel structure was designed by performing Particle and Heavy Ion Transport code System (PHITS) calculation. When its overall scale reached 20 cm, the deposition rate of 60Co gamma (γ) rays exceeded 90%. The response relationship between the thickness of each level of the CsI scintillator and the battery performance was analyzed by MCNP5. The total performance came up to the maximum when the CsI thickness in each level reached 2 cm. Finally, the multilevel isotope batteries were prepared. The output performance of the multilevel isotope batteries was characterized under 60Co γ source at a dose rate of 0.103 kGy/hr. The multilevel isotope battery in series obtained open circuit voltage of 7.77 V, short circuit current of 1.69 μA, maximum output power of 7.98 μW, and energy conversion efficiency of 0.15%. These isotope batteries showed great potential for the power supply of electronic equipment in many special fields.

show abstract

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

Gao

Chen

Wan

et al. 2022

Energy & Environ Materials

View full text Add to dashboard Cite

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.

show abstract

Multi-level radioisotope batteries based on 60Co γ source and Radio-voltaic/Radio-photovoltaic dual effects

Cited by 14 publications

References 21 publications

Mn2+ Induced Significant Improvement and Robust Stability of Radioluminescence in Cs3Cu2I5 for High Performance Nuclear Battery

Mn2+ Induced Significant Improvement and Robust Stability of Radioluminescence in Cs3Cu2I5 for High Performance Nuclear Battery

Enhanced novel dual effect isotope batteries: Optimization of material and structure

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

Contact Info

Product

Resources

About