Publication Date:
2015-02-10
Description:
The photoconductive properties of Bi 2 S 3 nanowires synthesized inside anodized alumina (AAO) membrane have been characterized as a function of illuminating photon energy between the wavelengths of 500 to 900 nm and at constant illumination intensity of 1–4 μ W·cm −2 . Photoconductivity spectra, photocurrent values, photocurrent onset/decay times of individual Bi 2 S 3 nanowires liberated from the AAO membrane were determined and compared with those of arrays of as-produced Bi 2 S 3 nanowires templated inside pores of AAO membrane. The alumina membrane was found to significantly influence the photoconductive properties of the AAO-hosted Bi 2 S 3 nanowires, when compared to liberated from the AAO membrane individual Bi 2 S 3 nanowires, possibly due to charge carrier trapping at the interface between the nanowire surface and the pore walls.
Print ISSN:
0021-8979
Electronic ISSN:
1089-7550
Topics:
Physics
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