View Full Version : LDR made
kesavan
May 12, 2008, 09:54 AM
Is LDR as a semiconductor device?
Capuchin
May 12, 2008, 10:01 AM
Yup, semiconductors are perfect for this kind of application.
kesavan
May 12, 2008, 10:07 AM
Is that made Intrinsic semiconductors or extrinsic (Impure) semiconductor?
I thing Intrinsic semiconductors.
Capuchin
May 12, 2008, 10:36 AM
Either will do the job. Extrinsic semiconductors will generally have a lower bandgap, and so will respond to light of a lower energy. Whereas intrinsic semiconductors will not respond until the photons reach a specific energy to excite electrons across the bandgap.
kesavan
May 12, 2008, 11:09 AM
Thanks