2011年5月2日星期一

Amazing!Look!Special Diodes With Photo Elements

Amazing!Look!Special Diodes With Photo Elements


As you know there are special diodes,including many kinds such as ones that are designed to measure light intensity .But I was wondering, if any diode is suitable here? In this post I will share results of those experiments.
Wikipedia describes it best.,“A photodiode is a PN junction or PIN structure. When a photon of sufficient energy strikes the diode, it excites an electron, thereby creating a free electron (and a positively charged electron hole). This mechanism is also known as the photoelectric effect. [...] Since transistors and ICs are made of semiconductors, and contain P-N junctions, almost every active component is potentially a photodiode.”
So diode used as a photo-element.


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