Two-dimensional electron-hole plasma at a germanium-electrolyte interface
Asnin V. M., Rogachev A. A., Stepanov V. I., Churilov A. B.
A new photoluminescence line has been observed when germanium is in contact with an electrolyte. This line is shown to be due to radiative recombination of two-dimensional layers of nonequilibrium electrons and holes which are localized near the germanium-electrolyte interface.