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Vol. 34, No. 8(3), S&M3042

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Vol. 32, No. 8(2), S&M2292

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Sensors and Materials
is an international peer-reviewed open access journal to provide a forum for researchers working in multidisciplinary fields of sensing technology.
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Sensors and Materials, Volume 26, Number 4 (2014)
Copyright(C) MYU K.K.
pp. 235-244
S&M987 Research Paper of Special Issue
https://doi.org/10.18494/SAM.2014.967
Published: May 27, 2014

Analysis of Temperature Dependence of Dark Current Mechanisms in Mid-Wavelength Infrared pin Type-II Superlattice Photodiodes [PDF]

Jarosław Wróbel, Elena Plis, Waldemar Gawron, Marcin Motyka, Piotr Martyniuk, Paweł Madejczyk, Andrzej Kowalewski, Mateusz Dyksik, Jan Misiewicz, Sanjay Krishna and Antoni Rogalski

(Received November 21, 2013; Accepted February 24, 2014)

Keywords: dark current, type II, superlattice, photodiode, differential resistance, infrared detection, high operating temperature, reduced mass, pin structure

We report on the temperature dependence characteristics of mid-wavelength InAs/GaSb type-II superlattice photodiodes in a temperature range from 120 to 240 K. The bulk material model with an effective bandgap of superlattice material has been used in the modelling of the experimental data. Temperature and bias-dependent differential resistances have been analyzed in detail owing to the contributing mechanisms that limit the electrical performance of the diodes. The C1-HH1 reduced mass has been estimated from the fitting to the high reverse bias (< –1.0 V) voltage and given as about 0.015 m0 in nearly the entire considered temperature range. This value agrees well with much more complex simulations and cyclotron resonance measurements. Obtaining very good results was possible, thanks to the inclusion of series resistance into the calculations. In this paper, we show how to overcome difficulties with the nonlinear problem related to it.

Corresponding author: Jarosław Wróbel


Cite this article
Jarosław Wróbel, Elena Plis, Waldemar Gawron, Marcin Motyka, Piotr Martyniuk, Paweł Madejczyk, Andrzej Kowalewski, Mateusz Dyksik, Jan Misiewicz, Sanjay Krishna and Antoni Rogalski, Analysis of Temperature Dependence of Dark Current Mechanisms in Mid-Wavelength Infrared pin Type-II Superlattice Photodiodes, Sens. Mater., Vol. 26, No. 4, 2014, p. 235-244.



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