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Efficient three-dimensional nanostructured photoelectric device by Al-ZnO coating on lithography-free patterned Si nanopillars
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10.1063/1.3621877
/content/aip/journal/apl/99/5/10.1063/1.3621877
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/5/10.1063/1.3621877
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Figures

Image of FIG. 1.
FIG. 1.

Ag nanoparticle formation by different annealing time durations for (a) 15 min and (b) 30 min. Cross-sectional images after RIE process for (c) 15 min and (d) 30 min annealed samples. Higher density SiNPs (SiNP-H) were formed from the 15 min annealed sample compared to the 30 min annealed sample (SiNP-L). AZO film was deposited on (e) SiNP-H and (f) SiNP-L.

Image of FIG. 2.
FIG. 2.

(Color online) (a) A TEM image shows periodic SiNPs. (b) A magnified TEM image from the region marked with the solid line. (c) A HRTEM image shows the interface between a SiNP and the AZO coating layer. (d) EDS profiles obtained from the solid line in (a). (e) Depth profiles for an AZO-coated planar substrate. (f) AZO-coated SiNPs.

Image of FIG. 3.
FIG. 3.

(Color online) The reflectance profiles from planar Si, AZO-coated planar Si, SiNPs and AZO-coated SiNPs. A clear reduction of reflection was observed with insertion of an AZO film in the air-Si system. A significant reduction of reflection was observed from the nanopillar textured substrate.

Image of FIG. 4.
FIG. 4.

(Color online) (a) Schematic diagram of the AZO-coated SiNPs. (b) Dark IV characteristics. (c) Light illuminated IV responses. A thin AZO coating on a SiNP forms a radial n/p heterojunction. A significant current enhancement was observed from the SiNP textured substrate due to enlargement of the surface area.

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/content/aip/journal/apl/99/5/10.1063/1.3621877
2011-08-04
2014-04-24
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Efficient three-dimensional nanostructured photoelectric device by Al-ZnO coating on lithography-free patterned Si nanopillars
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/5/10.1063/1.3621877
10.1063/1.3621877
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