Browsing by Author "Tretyak, O. V."

Now showing 1 - 3 of 3

Frequency dependence of negative differential capacitance in Schottky diodes with InAs quantum dots
(2008-09-08)
Lin, S. D.
;
Ilchenko, V. V.
;
Marin, V. V.
;
Panarin, K. Y.
;
Buyanin, A. A.
The frequency dependence of negative differential capacitance (NDC) in Schottky diodes with InAs quantum dots (QDs) is studied. The measured peak capacitances of NDC decay rapidly as the testing frequencies are higher than a few kilohertz. A kinetic model considering the testing signal is proposed and the capture rates of QDs are extracted. The simulation result is quantitatively consistent with the experimental data when the charging effect in QDs is included. (c) 2008 American Institute of Physics.
Observation of the negative differential capacitance in Schottky diodes with InAs quantum dots near room temperature
(2007-06-25)
Lin, S. D.
;
Ilchenko, V. V.
;
Marin, V. V.
;
Shkil, N. V.
;
Buyanin, A. A.
The negative differential capacitance (NDC) of Schottky diodes with the layers of InAs quantum dots (QDs) has been clearly observed near room temperature. A simple model involving two zero-dimensional quantum states is proposed to explain the NDC behavior. The simulation results show that the NDC is caused by the fast charging-discharging process in the second states of QDs.
Room temperature negative differential capacitance in self-assembled quantum dots
(2008-12-07)
Ilchenko, V. V.
;
Marin, V. V.
;
Lin, S. D.
;
Panarin, K. Y.
;
Buyanin, A. A.
The negative differential capacitance (NDC) of Schottky diodes with layers of InAs quantum dots (QDs) has been clearly observed at room temperature. The frequency dependence of the NDC is investigated. The measured peak capacitances of NDC decay rapidly at the testing frequencies higher than a few kilohertz. A kinetic model considering the testing signal is proposed and the capture rates of QDs are extracted. The simulation result is quantitatively consistent with the experimental data when the charging effect in QDs is included.