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Enhanced UV photoresponse from heterostructured Ag–ZnO nanowires
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10.1063/1.3126045
/content/aip/journal/apl/94/17/10.1063/1.3126045
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/17/10.1063/1.3126045
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Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic illustration of the setup for collecting electrospun nanowires as uniaxially aligned arrays. (b) Metallographic microscope (Olympus BX51M, Tokyo, Japan) image of the precursor nanowires span the void gap (scale bar: ). (c) Schematic of device testing for single Ag–ZnO nanowire connecting two Pt/Ti terminal electrodes with channel spacing.

Image of FIG. 2.
FIG. 2.

Typical characteristics of dark current and photocurrent through individual nanowires under UV illumination : (a) ZnO; (b) Ag-ZnO. Time-dependent photoresponses at a bias voltage of 4 V: (c) ZnO; (d) Ag-ZnO. (e) Proposed schematic illustrations of the energy band structure of the Ag–ZnO heterostructure. (f) Dependence of photosensitivity on Ag loadings, where is defined as the ratio of photocurrent to dark current that measured at 4 V, respectively.

Image of FIG. 3.
FIG. 3.

TEM images of the Ag–ZnO composite nanowires: (a) Ag (inset: EDX mapping of Ag element along the nanowire); (b) Ag (insets: typical EDX microanalysis on selected areas of a single nanowire).

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/content/aip/journal/apl/94/17/10.1063/1.3126045
2009-04-29
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Enhanced UV photoresponse from heterostructured Ag–ZnO nanowires
http://aip.metastore.ingenta.com/content/aip/journal/apl/94/17/10.1063/1.3126045
10.1063/1.3126045
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