CdSe nanocrystal quantum-dot memory

Memory effects in the electronic transport in CdSe nanocrystal sNCd quantum-dot arrays have been observed and characterized. Conduction through a NC array can be reduced with a negative voltage and then restored with a positive voltage. Light can also be used to restore or even increase the NC array conduction. We have studied the switching of the conduction in CdSe NC arrays and found the behavior to be highly sensitive to the value and duration of the laser and voltage pulses. (c) 2005 American Institute of Physics.