On a Predictive Scheme of Slow Photoconductive Gain Evolution in Epitaxial Layer/Substrate Optoelectronic Nanodevices

DOI: 10.4236/ojm.2011.12006   PDF   HTML     3,169 Downloads   7,710 Views   Citations


The photoconductive response of the fundamental type of diodic nanodevice comprising a low resistivity, n-type epitaxial layer and a semi-insulating substrate is considered in terms of the optoelectronic parameter of photoconductive gain as experimentally measurable through monitoring the temporal evolution of conductivity current photoenhancement under continuous epilayer illumination-exposure. A modelling taking into account the built-in potential barrier of the interface of the epitaxial layer/substrate device (ESD) as well as its modification by the photovoltage induced within the illuminated ESD diode leads to predicting the technologically exploitable possibility of a notably slow photonic dose-evolution (exposure time-development) of the optonanoelectronics ESD photoconductive gain.

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G. Zardas, C. Aidinis, E. Anagnostakis and C. Symeonides, "On a Predictive Scheme of Slow Photoconductive Gain Evolution in Epitaxial Layer/Substrate Optoelectronic Nanodevices," Open Journal of Microphysics, Vol. 1 No. 2, 2011, pp. 32-34. doi: 10.4236/ojm.2011.12006.

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The authors declare no conflicts of interest.


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