Diodes and LEDs

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Diodes and LEDs

• Discussion D8.1
• Kerns Irwin
• Sections 10-1 -- 10-5, 10-10

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Covalent bonds -- Insulator
http//electronics.howstuffworks.com/diode1.htm
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Semiconductors
Adding a very small amount of B or Ga to Si makes
a p-type semi-conductor with a missing electron
(a hole)
Adding a very small amount of P or As to Si makes
an n-type semi-conductor with an extra electron
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Diodes

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http//www.mtmi.vu.lt/pfk/funkc_dariniai/diod/inde
x.html
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Light Emmitting DiodeLED
hn

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http//electronics.howstuffworks.com/led1.htm
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Turning on an LED
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Turning on an LED
This is what we use in Lab