Diode (1 Viewer)

[allGenreGamer]

For a forward-bias diode, a depletion zone is formed. - the electrons travel to the positive holes, forming new holes in the process. I have some questions:

- In the depletion zone, does intrinsic conduction occur as the electrons keep travelling between the positive holes?

- There're positive holes beyond the depletion zone (in the p-type semi-conductor), how come the electrons don't travel there (i.e. why can't they reach beyond the depletion zone?)?

Thanks a lot!

 

[lucky]

wow.. ur so smart that i fink no one knows what u are on about..

haha... sori..

 

[gman03]

Your questions are really confusing. I will reply you with confusing answers.

Diode itself have a depletion zone as the two type semiconductr joins. The electrons do not travel beyond the depletion zone is due to the fact the electron does not gain enough energy in overcoming the potential difference set by the depletion zone. (i.e. i don't know why)

Where diode is in forword bias state, the voltage applied across the diode overcomes the depletion zone, and the depletion zone business just get diminished..

 

[lucky]

yep.. i no now..

a 0.7V is needed to go through the "depletion zone" (wateva that is)