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Viability of using near infrared PbS quantum dots as active materials in luminescent solar concentrators
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10.1063/1.3422485
/content/aip/journal/apl/96/19/10.1063/1.3422485
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/19/10.1063/1.3422485
View: Figures

Figures

Image of FIG. 1.
FIG. 1.

(a) Schematic of the device highlighting the arrangement of PV cell/collection fiber with relation to the excitation beam. (b) Absorption curves in absolute units for CdSe/ZnS and PbS QDs. Overlaid emission curves (dashed) for CdSe/ZnS and PbS QDs with Stoke’s shift marked by double headed arrows.

Image of FIG. 2.
FIG. 2.

(a) The effect of changing the distance between excitation and collection points for a PbS sample on the emission spectrum. The graphs are shifted vertically for clarity. (b) Similar effect for a PbS sample. The inset compares the peak emission redshifts with distance for PbS and CdSe/ZnS samples.

Image of FIG. 3.
FIG. 3.

(a) LSC and PV current ratio as a function of QD solution concentration. Top and right axes correspond to PbS, bottom and left to CdSe/ZnS QDs. The response of PbS sample is shown at 5 and 20 min after illumination. (b) Integrated optical efficiency as a function of time for LSCs with different fluorescent species. Inset shows the reversal of photodarkening by blocking the incident radiation for a short period of time (arrow) in the PbS sample and the slower photo-oxidative decay (dotted line) by following the normalized over a few hours.

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/content/aip/journal/apl/96/19/10.1063/1.3422485
2010-05-11
2014-04-23
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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Viability of using near infrared PbS quantum dots as active materials in luminescent solar concentrators
http://aip.metastore.ingenta.com/content/aip/journal/apl/96/19/10.1063/1.3422485
10.1063/1.3422485
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