V. Lashkaryov Institute of Semiconductor Physics, NAS of Ukraine, 41, prosp. Nauky, 03680 Kyiv, Ukraine

Abstract. In core-shell nanowire radial p-n junction, spatial (along the radius) distribution of the injected carriers is determined not only by recombination falling of the non-equilibrium carrier concentration but also by specific falling due to cylindrical symmetry of the structure. This forces us to consider an effective diffusion length of non-equilibrium carriers in nanoscale radial structures. This effective diffusion length proves to be larger (up to 25%) than the diffusion length in usual planar p-n junction (made of the same material) under injection from the shell to the core and smaller than it (up to 60%) under injection from the core to the shell.

Keywords: сore-shell nanowire, radial p-n junction, non-equilibrium current carriers, diffusion length.

Full Text (PDF)

References

Back to Volume 25 N4