NDLI: Modeling and simulation of long-wave infrared InAs/GaSb strained layer superlattice photodiodes with different passivants

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Modeling and simulation of long-wave infrared InAs/GaSb strained layer superlattice photodiodes with different passivants

Content Provider	Semantic Scholar
Author	Banerjee, Koushik Huang, Jun Ghosh, Siddhartha
Copyright Year	2011
Abstract	Abstract Current–voltage characteristics of long-wave infrared (LWIR) InAs/GaSb strained layer superlattice photodiodes (cut-off wavelength ∼10 μm), passivated with different surface passivants, have been modeled and simulated using ATLAS software from SILVACO. The simulated results are fitted to previous experimental results obtained on unpassivated devices and those passivated by silicon-dioxide (SiO 2 ), silicon nitride (Si x N y ) and zinc sulfide (ZnS). Surface parameters in terms of surface recombination velocity, shunt resistance and interface trap density are extracted for different passivants. The performance of silicon-dioxide passivated diode is solely dominated by a shunt leakage path with a shunt resistance value of 0.56 Ω-cm 2 . Extracted electron and hole surface recombination velocities have values of 10 5 cm/s and 10 7 cm/s for unpassivated, 10 3 cm/s and 10 5 cm/s for Si x N y passivated and 10 2 cm/s and 10 3 cm/s for ZnS passivated devices. Interface trap density follows a similar trend with values of 10 15 cm −2 , 8.5 × 10 14 cm −2 and 10 10 cm −2 for unpassivated, Si x N y passivated and ZnS passivated devices respectively. The suitability and limitations of the simulation tool are discussed.
Starting Page	460
Ending Page	464
Page Count	5
File Format	PDF HTM / HTML
DOI	10.1016/j.infrared.2011.08.003
Volume Number	54
Alternate Webpage(s)	https://dspace-prod.lib.uic.edu/bitstream/handle/10027/8519/Modeling%20and%20Simulation%20of%20Long-Wave%20Infrared%20InAsGaSb%20Strained%20Layer%20Superlattice%20Photodiodes%20with%20Different%20Passivants%20-%20Revised%20Manuscript.pdf?isAllowed=y&sequence=1
Alternate Webpage(s)	https://doi.org/10.1016/j.infrared.2011.08.003
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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