NanoVignettes
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Making Brighter Green LEDs

Making Brighter Green LEDs

Around 20% of the world’s electricity consumption is spent on lighting. If traditional incandescent light bulbs and fluorescent lamps were replaced by light-emitting diodes (LEDs) in our homes and workplaces, there would be a significant reduction in electricity consumption. My research work aims to improve the efficiency of LEDs that emit green light. I work with a semiconductor called gallium nitride, where atoms are arranged in the cubic crystal structure. To study the material and its defects, I use the atomic force microscope and transmission electron microscope.
— Lok Yi LEE, Scientist at Cambridge Centre for Gallium Nitride

Artist's Statement

Tim Simmons is based in Norfolk, UK. His practice uses photography and film to explore themes of time, motion, and place, He wants to encourage a different way of looking at and thinking about landscape. The environment around us shapes our personal geography, and the way in which we view and make sense of the world.
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