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Photoemission studies of passivation of germanium nanowires
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10.1063/1.2158027
/content/aip/journal/apl/87/26/10.1063/1.2158027
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/26/10.1063/1.2158027
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Figures

Image of FIG. 1.
FIG. 1.

(a) High-resolution XPS near Ge peak and (b) survey scan of as-grown Ge nanowires and the growth of oxide with time. The times marked for each spectrum indicate the number of hours the sample was exposed to atmosphere. (Inset: SEM image of GeNWs.)

Image of FIG. 2.
FIG. 2.

High-resolution XPS of Ge peaks to resolve the presence of various oxidation states. (a) As grown GeNWs. (b) GeNWs after of exposure to atmosphere. (c) GeNWs after exposure to UV lights. (d) GeNWs immediately after aqueous HF treatment.

Image of FIG. 3.
FIG. 3.

High-resolution Ge XPS of HF-treated GeNWs and the growth of oxide with time: (i) GeNWs after of exposure to air; (ii) the same GeNWs immediately after aqueous HF treatment; (iii) growth of oxide in HF treated GeNWs after of air exposure; and (iv) growth of oxide on HF treated GeNWs after of air exposure. Inset shows the absence of any peak in the range of kinetic energies expected for .

Image of FIG. 4.
FIG. 4.

(a) High-resolution Ge XPS of aqueous HCl treated GeNWs and the growth of oxide with time: (i) GeNWs after of air exposure, before HCl treatment; (ii) the same GeNWs immediately after aqueous HCl treatment; (iii) growth of oxide on HCl treated GeNWs after of air exposure; and (iv) growth of oxide on HCl treated wires after of air exposure. (b) Ge peak fitting for Cl-terminated GeNWs immediately after HCl treatment. Inset shows the presence of Cl peaks.

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/content/aip/journal/apl/87/26/10.1063/1.2158027
2005-12-23
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Photoemission studies of passivation of germanium nanowires
http://aip.metastore.ingenta.com/content/aip/journal/apl/87/26/10.1063/1.2158027
10.1063/1.2158027
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