Photon upconversion in degenerately sulfur doped InP nanowires.
Summary, in English
Radiative recombination in degenerately n-doped InP nanowires is studied for excitation above and below the Fermi energy of the electron gas, using photoluminescence. Laser-induced electron heating is observed, which allows absorption below the Fermi energy. We observe photon upconversion where photo-excited holes recombine with high |k| electrons. This can be attributed to hole scattering to high |k|-values, and the temperature dependence of this process is measured. We show that hole relaxation via phonon scattering can be observed in continuous wave excitation luminescence measurements.
- Solid State Physics
- Chemical Physics
- NanoLund: Center for Nanoscience
Royal Society of Chemistry
- Atom and Molecular Physics and Optics
- ISSN: 2040-3372