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VIDEO: The following clip demonstrates the formation of a putty-like composite between gallium and graphite. Loading more graphite into the mixture increases the viscosity of the composite. The qualitative difference between. view more
Credit: Institute for Basic Science
Gallium is a highly useful element that has accompanied the advancement of human civilization throughout the 20th century. Gallium is designated as a technologically critical element, as it is essential for the fabrication of semiconductors and transistors. Notably, gallium nitride and related compounds allowed for the discovery of the blue LED, which was the final key in the development of an energy-efficient and long-lasting white LED lighting system. This discovery has led to the awarding of the 2014 Nobel Prize in Physics. It is estimated that up to 98% of the demand for gallium originates from the semiconductor and electronics industry.