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Fabrication of double-walled carbon nanotube film/Cu2O nanoparticle film/TiO2 nanotube array heterojunctions for photosensors
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10.1063/1.4730399
/content/aip/journal/apl/100/25/10.1063/1.4730399
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/25/10.1063/1.4730399
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Figures

Image of FIG. 1.
FIG. 1.

(a) Lateral view and (b) top view FESEM images of TNAs coated on the top of the nanotubes by Cu2O NPs. Inset: Size distribution of Cu2O NPs with an average diameter of 120.5 nm and a standard deviation of 50.3 nm on top of TNAs. Raman spectra of (c) TNAs and (d) Cu2O/TNA heterojunctions. (e) X-ray diffraction patterns of TNAs and Cu2O/TNA heterojunctions marked as I and II, respectively. (f) Survey spectra, (g) Cu 2p XPS spectra, and (h) Ti 2p XPS spectra of Cu2O NP film/TNA heterojunctions.

Image of FIG. 2.
FIG. 2.

(a) Schematic diagram of DWCNT film/Cu2O NP film/TNA heterojunctions for I-V measurements. (b) Absorbance spectrum of DWCNT film/TNA heterojunctions and DWCNT film/Cu2O NP film/TNA heterojunctions.

Image of FIG. 3.
FIG. 3.

(a) I-V characteristic of DWCNT film/TNA heterojunctions and DWCNT film/Cu2O NP film/TNA heterojunctions. Photoresponse of DWCNT film/Cu2O NP film/TNA heterojunctions under illumination at (b) 405 nm and (c) 532 nm. (d) Photoresponse of DWCNT film/TNA heterojunctions under illumination at 532 nm.

Image of FIG. 4.
FIG. 4.

Energy level diagram of DWCNT film/Cu2O NP film/TNA heterojunctions. Energy level values are shown with respect to the vacuum level.

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/content/aip/journal/apl/100/25/10.1063/1.4730399
2012-06-21
2014-04-25
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Fabrication of double-walled carbon nanotube film/Cu2O nanoparticle film/TiO2 nanotube array heterojunctions for photosensors
http://aip.metastore.ingenta.com/content/aip/journal/apl/100/25/10.1063/1.4730399
10.1063/1.4730399
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