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Formation of cesium peroxide and cesium superoxide on InP photocathode activated by cesium and oxygen
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10.1063/1.2786882
/content/aip/journal/jap/102/7/10.1063/1.2786882
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/7/10.1063/1.2786882
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Activation curve for alternating Cs and steps. (a) pressure is about , multiple cycles are needed. (b) pressure is about , only is needed.

Image of FIG. 2.
FIG. 2.

Photoemission spectra for InP(100) activated by Cs and O: (a) O and (b) valence band.

Image of FIG. 3.
FIG. 3.

Photoemission spectra after the InP(100) sample is activated by Cs and O: (a) P and (b) In .

Image of FIG. 4.
FIG. 4.

The decay of the quantum yield and the change of work function for activated InP(100).

Image of FIG. 5.
FIG. 5.

Valence band and (b) O core level spectra at different times after the activation of InP(100).

Image of FIG. 6.
FIG. 6.

O ratio normalized by their cross sections at as a function of time after activation of InP(100) sample. The ratios for O1, O2, and total O are shown.

Image of FIG. 7.
FIG. 7.

Photoemission spectra at different times after the InP(100) activation: (a) P and (b) In .

Image of FIG. 8.
FIG. 8.

Numerical fittings for In spectra at different times after InP(100) activation: (a) just after the activation, (b) , (c) , and (d) .

Image of FIG. 9.
FIG. 9.

The ratio of Cs-induced and oxide components for In and P to their bulk peaks as a function of time.

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/content/aip/journal/jap/102/7/10.1063/1.2786882
2007-10-05
2014-04-16
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Formation of cesium peroxide and cesium superoxide on InP photocathode activated by cesium and oxygen
http://aip.metastore.ingenta.com/content/aip/journal/jap/102/7/10.1063/1.2786882
10.1063/1.2786882
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