_ WHAT is LED
_ HOW LED works
_ LED Structure
_ WHERE LED is being used
_ LED MARKET; today and tomorrow
Diode : devices which don’t follow the ohm’s law
Diode: electric current only
flows one way
• P-N junction diode
forward voltage applied
recombination
light
• Wavelength of light
depending on band gap.
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LED_고대_물리학과ppt
대신 20060620led.pdf
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