170 likes | 304 Views
Diodes and LEDs. Discussion D8.1 Kerns & Irwin Sections 10-1 -- 10-5, 10-10. Covalent bonds -- Insulator. http://electronics.howstuffworks.com/diode1.htm. Semiconductors. Adding a very small amount of B or Ga to Si makes a p-type semi-conductor with a missing electron (a hole).
E N D
Diodes and LEDs Discussion D8.1 Kerns & Irwin Sections 10-1 -- 10-5, 10-10
Covalent bonds -- Insulator http://electronics.howstuffworks.com/diode1.htm
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
Diodes + - http://www.mtmi.vu.lt/pfk/funkc_dariniai/diod/index.html
Light Emmitting DiodeLED hn + - http://electronics.howstuffworks.com/led1.htm
Turning on an LED This is what we use in Lab