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Title: Dynamics of electronic transitions and frequency dependence of negative capacitance in semiconductor diodes under high forward bias
Authors: Bansal, Kanika
Henini, Mohamed
Alshammari, Marzook S.
Dept. of Physics
Keywords: Electronic transitions
Negative capacitance
Semiconductor diodes
High forward bias
Differential capacitance response
Issue Date: Sep-2014
Publisher: AIP Publishing
Citation: Applied Physics Letters, 105(12), 123503.
Abstract: We observed qualitatively dissimilar frequency dependence of negative capacitance under high charge injection in two sets of functionally different junction diodes: III-V based light emitting and Si-based non-light emitting diodes. Using an advanced approach based on bias activated differential capacitance, we developed a generalized understanding of negative capacitance phenomenon which can be extended to any diode based device structure. We explained the observations as the mutual competition of fast and slow electronic transition rates which are different in different devices. This study can be useful in understanding the interfacial effects in semiconductor heterostructures and may lead to superior device functionality.
ISSN: 0003-6951
Appears in Collections:JOURNAL ARTICLES

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