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Improving Si solar cell performance using Mn:ZnSe quantum dot-doped PLMA thin film
KTH, School of Information and Communication Technology (ICT), Materials- and Nano Physics, Material Physics, MF.
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2013 (English)In: Nanoscale Research Letters, ISSN 1931-7573, E-ISSN 1556-276X, Vol. 8, 291- p.Article in journal (Refereed) Published
Abstract [en]

Poly(lauryl methacrylate) (PLMA) thin film doped with Mn:ZnSe quantum dots (QDs) was spin-deposited on the front surface of Si solar cell for enhancing the solar cell efficiency via photoluminescence (PL) conversion. Significant solar cell efficiency enhancements (approximately 5% to 10%) under all-solar-spectrum (AM0) condition were observed after QD-doped PLMA coatings. Furthermore, the real contribution of the PL conversion was precisely assessed by investigating the photovoltaic responses of the QD-doped PLMA to monochromatic and AM0 light sources as functions of QD concentration, combined with reflectance and external quantum efficiency measurements. At a QD concentration of 1.6 mg/ml for example, among the efficiency enhancement of 5.96%, about 1.04% was due to the PL conversion, and the rest came from antireflection. Our work indicates that for the practical use of PL conversion in solar cell performance improvement, cautions are to be taken, as the achieved efficiency enhancement might not be wholly due to the PL conversion.

Place, publisher, year, edition, pages
Springer-Verlag New York, 2013. Vol. 8, 291- p.
Keyword [en]
Si solar cell, Quantum dots, Photoluminescence conversion, Antireflectin
National Category
Nano Technology
URN: urn:nbn:se:kth:diva-124974DOI: 10.1186/1556-276X-8-291ISI: 000321272000001ScopusID: 2-s2.0-84881257768OAI: diva2:638941

QC 20130805

Available from: 2013-08-05 Created: 2013-08-02 Last updated: 2013-08-05Bibliographically approved

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Zhang, Miao
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Material Physics, MF
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