Oh, lets make it more interesting. A hole is actually a molecule with one or more missing electrons, hence holes, that can be picked up, usually from an adjacent molecule. That explains all those moving holes I had so much trouble understanding back when transistors came out. And to finish off solid state electronics is made postible by having material that will give off, and receive electrons easily. Hence, again, those moving holes.
There, I have explained in one sentence what whole books have had trouble getting across <GRIN!>, and no fair saying my explaination is over simplified. -- graywolf http://www.graywolfphoto.com http://webpages.charter.net/graywolf "Idiot Proof" <==> "Expert Proof" ----------------------------------- Digital Image Studio wrote: > On 19/09/06, graywolf <[EMAIL PROTECTED]> wrote: >> Thanks, Toralf, I have skimmed that and bookmarked to read more closely. >> >> Getting a bit of an Ah-Ha from that skim, apparently folks are talking >> about electrons and holes as if they are the same thing. They definately >> are not. A hole is a space that can accept an electron, and if we are >> talking about 40K or so holes in the photodiode then that makes sense as >> that would be the amount of additional free electrons that the diode can >> accept (note that lots of them will bounce around and never find a hole >> to fit into). Still in the real world sense the output can not be >> considered stepped but a fairly smooth analog curve. Sometimes we try to >> apply too much to our understanding of things. > > Yes, but I don't know if here is the place to discuss Solid-state > technology in detail :-) > -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net
