Light Emission (image) National University of Singapore Share Print E-Mail Caption This is a schematic of the light emission from a single crystal monolayer of tungsten diselenide flake on a gold substrate. Part of the triangular flake rests on the patterned region of the substrate consisting of sub-20 nm wide trenches. Credit Andrew T. S. Wee Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.