摘要
From the 1950s to 1960s the optical absorption spectrum of single crystal MnO was reported, and the mechanisms of five absorption bands analyzed. However, the optical absorption phenomenon of nano-MnO powder has not been reported. In this note, the optical reflectivity spectra of nano-MnO powder (80nm) in the wavelength range of 200—2500nm at room temperature are investigated, and the mechanisms of the absorption bands appearing in the reflectivity spectra are discussed.
