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Remarkable enhancement in photocurrent of In0.20Ga0.80N photoanode by using an electrochemical surface treatment
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10.1063/1.3640223
/content/aip/journal/apl/99/11/10.1063/1.3640223
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/11/10.1063/1.3640223
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(Color online) Cyclic voltammetry curves of In0.20Ga0.80N electrode in 1 M HCl solution. Inset: SEM and AFM graphs of surface of the In0.20Ga0.80N electrode. SEM before (a) and after (b) the electrochemical corrosion. AFM before (c) and after (d) the electrochemical corrosion.

Image of FIG. 2.
FIG. 2.

(Color online) (a) Photocurrent density potential at In0.20Ga0.80N electrode in 1 M HBr solution under λ > 390 nm illumination before and after the electrochemical corrosion. (b) Action spectra of In0.20Ga0.80N electrode in 1 M HBr solution before and after the electrochemical corrosion; the potential is 0.8 V vs Ag/AgCl. (c) Chronoamperometry (i-t) at In0.20Ga0.80N electrode in 1 M HBr solution under λ > 390 nm illumination after the electrochemical corrosion; the potential is 0.8 V vs Ag/AgCl.

Image of FIG. 3.
FIG. 3.

PL spectra of In0.20Ga0.80N electrode before and after the electrochemical corrosion, (a) before the electrochemical corrosion, (b) after the electrochemical corrosion. Inset: Absorption spectrum of In0.20Ga0.80N electrode before electrochemical corrosion.

Image of FIG. 4.
FIG. 4.

(Color online) A schematic diagram of enhanced photocurrent after the electrochemical corrosion.

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/content/aip/journal/apl/99/11/10.1063/1.3640223
2011-09-15
2014-04-21
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Remarkable enhancement in photocurrent of In0.20Ga0.80N photoanode by using an electrochemical surface treatment
http://aip.metastore.ingenta.com/content/aip/journal/apl/99/11/10.1063/1.3640223
10.1063/1.3640223
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