Abstract
Results of our many-particle Monte-Carlo modeling of kinetics and transport of electrons in InAs/GaAs quantum-dot infrared photodetectors are reviewed. We studied the dependence of the electron capture time on the electric field at different heights of the potential barriers around the dots. The capture time is almost independent on the electric field up to a critical field about 1 kV/cm, and than substantially decreases with the field increase. We found that the capture time has exponential dependence on the inverse of the average electron energy, which is in agreement with theory. Our results show that controllable kinetics in quantum-dot structures may provide a significant increase in the photoconductive gain, device detectivity, and responsivity.
This is a preview of subscription content, log in via an institution to check access.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Chien, L.H., Sergeev, A., Vagidov, N., Mitin, V.: Hot-electron transport in quantum-dot photodetectors. International Journal of High Speed Electronics and Systems 18, 255–264 (2008)
Ferreira, R., Bastard, G.: Phonon-assisted capture and intradot Auger relaxation in quantum dots. Appl. Phys. Lett. 74, 2818–2820 (1999)
Hirakawa, K., Lee, S.-W., Lelong, P., Fujimoto, S., Hirotanu, K., Sakaki, H.: High-sensitivity modulation-doped quantum-dot infrared photodetectors. Microelectronic Engineering 63, 185–192 (2002)
Lee, S.-W., Hirakawa, K.: Lateral conduction quantum-dot infrared photodetectors using photoionization of holes in InAs quantum dots. Nanotechnology 17, 3866–3868 (2006)
Lim, H., Movaghar, B., Tsao, S., Taguchi, M., Zhang, W., Quivy, A.A., Razeghi, M.: Gain and recombination dynamics of quantum-dot infrared photodetectors. Phys. Rev. B 74, 205321–1–8 (2006)
Mitin, V.V., Pipa, V.I., Sergeev, A.V., Dutta, M., Stroscio, M.: High-gain quantum-dot infrared photodetector. Infrared Physics and Technol. 42, 467–472 (2001)
Vagidov, N., Sergeev, A., Mitin, V.: Infrared quantum-dot detectors with diffusion-limited capture. International Journal of High Speed Electronics and Systems 17, 585–591 (2007)
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 2010 Springer-Verlag Berlin Heidelberg
About this paper
Cite this paper
Mitin, V., Sergeev, A., Chien, LH., Vagidov, N. (2010). Monte-Carlo Modeling of Electron Kinetics in Room Temperature Quantum-Dot Photodetectors. In: Lirkov, I., Margenov, S., Waśniewski, J. (eds) Large-Scale Scientific Computing. LSSC 2009. Lecture Notes in Computer Science, vol 5910. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-12535-5_47
Download citation
DOI: https://doi.org/10.1007/978-3-642-12535-5_47
Publisher Name: Springer, Berlin, Heidelberg
Print ISBN: 978-3-642-12534-8
Online ISBN: 978-3-642-12535-5
eBook Packages: Computer ScienceComputer Science (R0)