Edge Emission Bands in Cadmium Sulfide

Abstract
It is shown that there are five clearly defined series of edge emission bands in pure cadmium sulfide crystals. These series have their zero phonon peaks at 5128, 5140, 5163, 5179, and 5234 A at 4.2°K. The temperature dependence of the peak wavelengths and intensities of these series is discussed and a band model presented.