Electronic transport properties of ternary Cd1-xZnxS nanowire network

Details Electronic transport properties of ternary Cd1-xZnxS nanowire network Electronic transport properties of ternary Cd1-xZnxS nanowire network

2009-09-18

arxiv.org/abs/0909.3480v1

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

We present electronic transport characteristics of ternary alloy Cd1-xZnxS nanowire networks in the dark and under white light illumination. Compared to the negligible dark current, we observed a photocurrent enhancement up to 4 orders of magnitude at intensity of 460 mW/cm2. The time constant of the dynamic photoresponse is ~5 sec. The current-voltage characteristics at different intensities show Ohmic behavior at low bias and space charge limited conduction (SCLC) at higher bias voltages. The SCLC behavior and slow time response indicate that the charge transport is dominated by tunneling at the percolating inter-nanowire junctions.

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