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Transistor Emits Infrared Radiation

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Daniel S. Burgess

A research team at the University of Illinois at Urbana-Champaign has developed a transistor that emits infrared radiation and offers standard electrical output. The device, which produces modulated optical emission in phase with a base current at 1 MHz, suggests applications in displays, communications and optical integrated circuitry, and offers a challenge to optoelectronics to re-examine the fundamental speed limits of devices such as LEDs and laser diodes. InGaP/GaAs heterojunction bipolar transistors fabricated at the University of Illinois at Urbana-Champaign produce an infrared...Read full article

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    Published: February 2004
    Glossary
    transistor
    An electronic device consisting of a semiconductor material, generally germanium or silicon, and used for rectification, amplification and switching. Its mode of operation utilizes transmission across the junction of the donor electrons and holes.
    CommunicationsConsumerelectrical outputinfrared radiationResearch & TechnologyTech PulsetransistorUniversity of Illinois

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