Lunch atop a (Springfield) skyscraper

Lunch atop a (Springfield) skyscraper
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The areas on the sensor that detects light.

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4
votes
2answers
2k views

What is the structure of a photosite?

I know that sensors are made from several (million) photosites. But what is in the photosites? What chemicals, if any? How are they made? What actually detects the light? I am looking for both CMOS ...
2
votes
1answer
125 views

Does a deeper photosite increase the dynamic range?

As I understand, a bigger photosite (on the sensor) enables a bigger dynamic range and also better high ISO performance. Is there a reason not to make the photosite deeper?