Analysis of InAs-GaAs quantum dot solar cells using Suns-Voc measurementsReportar como inadecuado


Analysis of InAs-GaAs quantum dot solar cells using Suns-Voc measurements


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Publication Date: 2014-08-06

Journal Title: Solar Energy Materials and Solar Cells

Publisher: Elsevier

Volume: 130

Pages: 241-245

Language: English

Type: Article

Metadata: Show full item record

Citation: Beattie, N. S., Zoppi, G., See, P., Farrer, I., Duchamp, M., Morrison, D. J., Miles, R. W., & et al. (2014). Analysis of InAs/GaAs quantum dot solar cells using Suns-Voc measurements. Solar Energy Materials and Solar Cells, 130 241-245.

Description: This is the final published version. It first appeared at http://www.sciencedirect.com/science/article/pii/S0927024814003833#.

Abstract: The performance of InAs/GaAs quantum dot solar cells was investigated up to an optical concentration of 500-suns. A high temperature spacer layer between successive layers of quantum dots was used to reduce the degradation in the open circuit voltage relative to a control device without quantum dots. This improvement is explained using optical data while structural imaging of quantum dot stacks confirm that the devices are not limited by strain. The evolution of the open circuit voltage as a function of number of suns concentration was observed to be nearly ideal when compared with a high performance single junction GaAs solar cell. Analysis of Suns-Voc measurements reveal diode ideality factors as low as 1.16 which is indicative of a low concentration of defects in the devices.

Keywords: InAs quantum dots, Concentrator, Solar cell

Sponsorship: The authors acknowledge financial support from the European Union under the Seventh Framework Programme under a contract for an Integrated Infrastructure Initiative. Reference 312483 – ESTEEM2.

Identifiers:

This record's URL: http://dx.doi.org/10.1016/j.solmat.2014.07.022http://www.repository.cam.ac.uk/handle/1810/247148

Rights: Attribution-NonCommercial-NoDerivs 2.0 UK: England & Wales

Licence URL: http://creativecommons.org/licenses/by-nc-nd/2.0/uk/





Autor: Beattie, N. S.Zoppi, G.See, P.Farrer, I.Duchamp, M.Morrison, D. J.Miles, R. W.Ritchie, D. A.Show moreShow less

Fuente: https://www.repository.cam.ac.uk/handle/1810/247148



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