Abstract:
Yoshiaki Nakamura et al. present their work in Journal of Applied Physics. They grew Ge nanodots with a typical size of ~4 nm and ultrahigh density on ultrathin SixGe oxide films made by oxidizing Ge wetting layers grown on Si surfaces. This is a promising result for the application of SiGe-based optoelectronics because of the ultrahigh density of Ge dots in addition to their small dot size.