A method for improving the betavoltaic cell’s conversion efficiency: Using the alloy as Schottky metal

A method for improving the betavoltaic cell’s conversion efficiency: Using the alloy as Schottky metal

Under the irradiation of a 63Ni source, the Al/diamond Schottky barrier diode and 2198 Al–Li alloy/diamond Schottky barrier diode can convert decay energy into electrical energy. Through the Monte Carlo method, the energy depositions of the 63Ni source in the energy converters are simulated separate...

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Veröffentlicht in:AIP advances 2022-05, Vol.12 (5), p.055216-055216-6
Hauptverfasser: Wang, Yu, Lu, Jingbin, Zheng, Renzhou, Li, Xiaoyi, Liu, Yumin, Zhang, Xue, Zhang, Yuehui, Chen, Ziyi
Format: Artikel
Sprache:eng
Schlagworte:
Aluminum-lithium alloys
Circuits
Converters
Diamonds
Monte Carlo simulation
Open circuit voltage
Schottky diodes
Short circuit currents
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container_issue 5
container_start_page 055216
container_title AIP advances
container_volume 12
creator Wang, Yu
Lu, Jingbin
Zheng, Renzhou
Li, Xiaoyi
Liu, Yumin
Zhang, Xue
Zhang, Yuehui
Chen, Ziyi
description Under the irradiation of a 63Ni source, the Al/diamond Schottky barrier diode and 2198 Al–Li alloy/diamond Schottky barrier diode can convert decay energy into electrical energy. Through the Monte Carlo method, the energy depositions of the 63Ni source in the energy converters are simulated separately. And then the electrical output properties of two betavoltaic batteries are calculated and compared. The short-circuit current density, open-circuit voltage, fill factor and maximum output power density of the Al/diamond and 2198 Al–Li alloy/diamond Schottky barrier batteries are 0.086 μA/cm2, 2.14 V, 0.93, 0.17 μW/cm2 and 0.089 μA/cm2, 2.66 V, 0.95, 0.22 μW/cm2, respectively. The maximum output power increased by about 29%, which indicates that using alloy as Schottky metal can significantly improve the output performance of a betavoltaic battery.
doi_str_mv 10.1063/5.0081680
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subjects Aluminum-lithium alloys
Circuits
Converters
Diamonds
Monte Carlo simulation
Open circuit voltage
Schottky diodes
Short circuit currents
title A method for improving the betavoltaic cell’s conversion efficiency: Using the alloy as Schottky metal
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