fig1

Preparation and research progress of GaN-based avalanche photodetectors

Figure 1. (A) Collisional ionization of electrons in p-i-n structure; (B) a typical gain-voltage curve of an APD. p-i-n: Positive-intrinsic-negative; APD: avalanche photodetector.

Microstructures
ISSN 2770-2995 (Online)

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