HANK MORGAN / SCIENCE PHOTO LIBRARY HANK MORGAN / SCIENCE PHOTO LIBRARY
Gallium arsenide, a material that moves electrons five times faster than silicon. Here gallium bars and arsenic nuggets are furnace fused. Gallium arsenide (GaAs), a compound of two elements (gallium and arsenic) is a semiconductor used to construct devices such as microwave frequency integrated circuits (MMICs), laser diodes and solar cells.
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