Modeling of avalanche multiplication and excess noise factor in In0.52Al0.48As avalanche photodiodes using a simple Monte Carlo model

Mun, S. C. Liew Tat and Tan, C. H. and Goh, Y. L. and Marshall, A. R. J. and David, J. P. R. (2008) Modeling of avalanche multiplication and excess noise factor in In0.52Al0.48As avalanche photodiodes using a simple Monte Carlo model. Journal of Applied Physics, 104 (1). -. ISSN 0021-8979

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Abstract

A simple Monte Carlo model has been developed to simulate the avalanche multiplication process in In0.52Al0.48As. The model reproduces avalanche multiplication and excess noise factor measured on a wide range of In0.52Al0.48As p(+)-n-n(+), n(+)-n-p(+), and p(+)-n(+) diodes and confirms that very low excess noise factor can be obtained using pure electron injection in very thick diodes with avalanche region greater than 2.21 mu m or in very thin diodes with avalanche region lesser than 0.11 mu m. In addition we investigated the effect of an electric field gradient in the avalanche region of avalanche photodiodes and found that the excess noise factor can be reduced with electric field gradients. However in thin diodes with avalanche region lesser than 0.20 mu m, the onset of tunneling current negates the excess noise reduction achieved using the electric field gradient. Therefore ideal p(+)-i-n(+) diodes still provide the overall preferred structure. (c) 2008 American Institute of Physics.

Item Type:
Journal Article
Journal or Publication Title:
Journal of Applied Physics
Uncontrolled Keywords:
/dk/atira/pure/researchoutput/libraryofcongress/qc
Subjects:
ID Code:
54605
Deposited By:
Deposited On:
28 May 2012 11:10
Refereed?:
Yes
Published?:
Published
Last Modified:
01 Jan 2020 07:54