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Two-color quantum dot infrared photodetector with double tunneling barriers
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10.1063/1.3561777
/content/aip/journal/apl/98/10/10.1063/1.3561777
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/10/10.1063/1.3561777
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

Dark current curves of the two samples at 77 K.

Image of FIG. 2.
FIG. 2.

(a) The top two curves are the photocurrent spectra of sample a at 2.0 V and −0.75 V, respectively; the bottom curve is the photocurrent spectrum of sample b at 1.0 V. (b) and (c) are the dependence of photocurrent intensity on the applied positive bias voltages for the and peaks, respectively, for sample a.

Image of FIG. 3.
FIG. 3.

Proposed conduction band diagram of sample a.

Image of FIG. 4.
FIG. 4.

Photocurrent ratio of the peak over the peak vs bias voltages. The inset is the simulated ratio at different .

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/content/aip/journal/apl/98/10/10.1063/1.3561777
2011-03-08
2014-04-20
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Two-color In0.4Ga0.6As/Al0.1Ga0.9As quantum dot infrared photodetector with double tunneling barriers
http://aip.metastore.ingenta.com/content/aip/journal/apl/98/10/10.1063/1.3561777
10.1063/1.3561777
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