Muon probes of temperature-dependent charge carrier kinetics in semiconductors
Journal Title/Source
Applied Physics Letters
Publication Date
9-2019
Volume
115
Page Numbers
112101
DOI (if applicable)
https://doi.org/10.1063/1.5115596
Document Type
Journal Article
Department
Physics
Abstract
We have applied the photoexcited muon spin spectroscopy technique to intrinsic germanium with the goal of developing a method for characterizing excess carrier kinetics in a wide range of semiconductors. Muon spin relaxation rates can be a unique measure of excess carrier density and utilized to investigate carrier dynamics. By virtue of the localized nature of implanted muons, the obtained carrier lifetime spectrum can be modeled with a simple 1-dimensional diffusion equation to determine bulk recombination lifetime and carrier diffusivity. Temperature dependent studies of these parameters can reveal the recombination and diffusion mechanism.
Recommended Citation
Muon probes of temperature-dependent charge carrier kinetics in semiconductors. K. Yokoyama, J.S. Lord, P.W. Mengyan, M.R. Goeks and R.L. Lichti Appl Phys Lett 115 (2019) 112101.
Comments
NMU Student funding provided partially by the Freshman Fellows program and the NMU foundation.