Journal article
Simulation and optimization of current generation in gallium phosphide nanowire betavoltaic devices
Abstract
The geometry of a gallium phosphide nanowire (NW) array has been optimized for maximum current generation in a betavoltaic (BV) device. The energy capture efficiency for various device geometries with different radioisotope source compounds was calculated in GEANT4. A validation of GEANT4 for BV device simulation was performed by comparing a model output with the available bulk semiconductor BV performance data, followed by predictions of the …
Authors
Wagner D; Novog DR; LaPierre RR
Journal
Journal of Applied Physics, Vol. 125, No. 16,
Publisher
AIP Publishing
Publication Date
April 28, 2019
DOI
10.1063/1.5093805
ISSN
0021-8979