Generation Recombination Noise in GaN Photoconducting Detectors
- PDF / 435,166 Bytes
- 6 Pages / 612 x 792 pts (letter) Page_size
- 23 Downloads / 240 Views
(
i ( t ) = I 0 exp − t τ
)
(1)
Downloaded from https://www.cambridge.org/core. IP address: 5.188.217.206, on 13 Dec 2019 at 14:08:36, subject to the Cambridge Core terms of use, available at https://www.cambridge.org/core/terms. https://doi.org/10.1557/S1092578300003471
The time constant τ is a characteristic of the deep level and is related to its emission (τe) and capture (τc) time constants according to the relation12 1 τ
=
1 τ e
+
1 τ c
(2)
When the noise arises from deep levels with a well-defined time constant the observed noise spectrum has a Lorentzian shape which can be described as i 2
=
A * ∆ f 2 1 + f f 0
(3)
where f0 = 1/2πτ is the characteristic frequency associated with the time constant τ and A is the amplitude of the noise current at frequencies f
Data Loading...
