The electronic transport properties of ternary Cd1-xZnxS nanowire networks

    Authors

    D. Joung; M. Arif; S. Biswas; S. Kar; S. Santra;S. I. Khondaker

    Comments

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    Abbreviated Journal Title

    Nanotechnology

    Keywords

    CHEMICAL-VAPOR-DEPOSITION; SEMICONDUCTOR NANOWIRES; PHOTODETECTORS; NANORIBBONS; POLYMER; GROWTH; FILMS; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary; Physics, Applied

    Abstract

    We present the 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 of up to four orders of magnitude at an intensity of 460 mW cm(-2). The time constant of the dynamic photoresponse is similar to 5 s. 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.

    Journal Title

    Nanotechnology

    Volume

    20

    Issue/Number

    44

    Publication Date

    1-1-2009

    Document Type

    Article

    Language

    English

    First Page

    5

    WOS Identifier

    WOS:000270562900006

    ISSN

    0957-4484

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