| 摘要 |
Photodetectors, photodetector arrays, image sensors, and other apparatus are disclosed. An apparatus, of one aspect, may include a surface to receive light, a photosensitive region disposed within a substrate, and a material coupled between the surface and the photosensitive region. The material may receive the light. At least some of the light may free electrons in the material. An electron lens coupled between the surface and the material may focus the electrons in the material toward the photosensitive region. Other apparatus are also disclosed, as are methods of using such apparatus, methods of fabricating such apparatus, and systems incorporating such apparatus.
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