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**DONOTDELETE**
Guest
Hi. I am doing a Chemistry project on consumer projects, and I picked LED because I found it a very interesting subject.
I would be most appreciated if you could answer some of the following troubles I found dealing with how SEDs work. (I hope you could reply real soon because I need this in less than a week)
First I would like to know what 'GaN' means (just pick one of them for example). Does it mean that Ga and N are both doped into the silicon crystal, and Ga is 'the hole' and that N is the donor of electrons?
I also have some questions on the the band gap and where the light actually emits. I hope this is correct: When the electrons needed to pass through the quantom layers of their atom (N) to a lower layer energy level of the (Ga), and therefore release the excessive energy in the form of light? If my 'theory' is incorrect, what exactly happens? Is there anyway to explain how or why the energy becomes light?
I would also know how the band gap (the gap between the conduction band and valence band) is related to all this? Does the light release in the gap?
If the LED is only goes one direction, how come it doesn't become 'used up' (both sides become an insulator -- all the holes are filled)? In other words, how does the electric current keep the transition between the holes and electrons going over and over again?
Is there any 'chemistry' related stuff, if any, are involved in the proccess that I didn't mention about? (like any formulas etc) If it is way too complicated it wouldn't be neccessary becuase this is just Honors Chemistry in High School.
Thx for reading our email and answering my questions
-Eric
I would be most appreciated if you could answer some of the following troubles I found dealing with how SEDs work. (I hope you could reply real soon because I need this in less than a week)
First I would like to know what 'GaN' means (just pick one of them for example). Does it mean that Ga and N are both doped into the silicon crystal, and Ga is 'the hole' and that N is the donor of electrons?
I also have some questions on the the band gap and where the light actually emits. I hope this is correct: When the electrons needed to pass through the quantom layers of their atom (N) to a lower layer energy level of the (Ga), and therefore release the excessive energy in the form of light? If my 'theory' is incorrect, what exactly happens? Is there anyway to explain how or why the energy becomes light?
I would also know how the band gap (the gap between the conduction band and valence band) is related to all this? Does the light release in the gap?
If the LED is only goes one direction, how come it doesn't become 'used up' (both sides become an insulator -- all the holes are filled)? In other words, how does the electric current keep the transition between the holes and electrons going over and over again?
Is there any 'chemistry' related stuff, if any, are involved in the proccess that I didn't mention about? (like any formulas etc) If it is way too complicated it wouldn't be neccessary becuase this is just Honors Chemistry in High School.
Thx for reading our email and answering my questions
-Eric
