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Optical characteristics of GaInP/GaP double-heterostructure core-shell nanowires embedded in polydimethylsiloxane membranes
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10.1063/1.3455340
/content/aip/journal/apl/96/25/10.1063/1.3455340
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/25/10.1063/1.3455340
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Figures

Image of FIG. 1.
FIG. 1.

Schematic diagrams of the whole processes which involve (a) the formation of Ga droplets on Si substrates, (b) the growth of GaInP/GaP DH core-shell NWs, (c) PDMS application and curing processes, (d) peeling-off process, and (e) turnover for structural analyses and optical characterization. (f) Schematic and digital camera images of the fabricated NWs embedded in PDMS membranes.

Image of FIG. 2.
FIG. 2.

(a) Top-view and (b) bird-eye-view SEM images of GaInP/GaP DH core-shell NWs on Si (111) substrates. (c) Cross-sectional side-view TEM image of the NWs. (d) Bird-eye-view SEM images of the NWs embedded in PDMS membranes. An inset is the SEM image of the PDMS membranes without NWs.

Image of FIG. 3.
FIG. 3.

PL spectra at 77 K of GaInP/GaP DH core-shell NWs on Si substrates with different incident pump power densities ranging from to 6 mW.

Image of FIG. 4.
FIG. 4.

(a) Digital camera images of the NWs in PDMS membranes measured at 77 K with an excitation by a 6 mW blue 403 nm semiconductor lasers through a high-pass filter which cuts the signal below 420 nm. An inset is the image without the high-pass filter. (b) PL spectra at 77 K of GaInP/GaP DH core-shell NWs on Si substrates, the NWs in PDMS membranes, and PDMS membranes without NWs.

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/content/aip/journal/apl/96/25/10.1063/1.3455340
2010-06-21
2014-04-18
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Optical characteristics of GaInP/GaP double-heterostructure core-shell nanowires embedded in polydimethylsiloxane membranes
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/25/10.1063/1.3455340
10.1063/1.3455340
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