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Observation of photon recycling in strain-balanced quantum well solar cells
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10.1063/1.2742334
/content/aip/journal/apl/90/21/10.1063/1.2742334
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/21/10.1063/1.2742334

Figures

Image of FIG. 1.
FIG. 1.

Measured dark current of shallow quantum well SB-QWSC grown on DBR (gray) and GaAs (black) substrates. Also shown are the calculated ideality dark current components for the DBR (dotted) and control (dashed).

Image of FIG. 2.
FIG. 2.

Measured (empty squares) and modeled (solid line) electroluminescence spectra of shallow quantum well DBR SB-QWSC.

Image of FIG. 3.
FIG. 3.

Modeled device efficiency for a 50 well CDBR SB-QWSC at (low-AOD spectrum) concentration in the radiative limit, as a function of the initial layer thicknesses of a DBR chirped at 1% per period. The high efficiency in the lower left (point A) is due to an increase in while the lower right efficiency peak (point B) is due to an increase in .

Tables

Generic image for table
Table I.

Reverse saturation currents and series resistances from fits to the measurements and model predictions for .

Generic image for table
Table II.

Calculated , , and efficiency , at concentration (low-AOD spectrum), of a 50 shallow well SB-QWSC grown on a GaAs substrate, a single 20.5 period DBR optimized to increase , a single 20.5 period DBR optimized to increase , and two 10.5 period DBRs, one of which is optimized for and the other for enhancement. All DBRs are chirped at 1% per period. (FF denotes fill factors.)

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/content/aip/journal/apl/90/21/10.1063/1.2742334
2007-05-23
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Observation of photon recycling in strain-balanced quantum well solar cells
http://aip.metastore.ingenta.com/content/aip/journal/apl/90/21/10.1063/1.2742334
10.1063/1.2742334
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