Details

Autor(en) / Beteiligte

• BOMM, Jana
• BÜCHTEMANN, Andreas
• VAN SARK, Wilfried G. J. H. M
• KOOLE, Rolf
• CHATTEN, Amanda J
• BOSE, Rahul
• FARRELL, Daniel J
• CHAN, Ngai L. A
• YE XIAO
• SLOOFF, Lenneke H
• MEYER, Toby
• MEYER, Andreas

Titel

Fabrication and full characterization of state-of-the-art quantum dot luminescent solar concentrators

Ist Teil von

• Solar energy materials and solar cells, 2011-08, Vol.95 (8), p.2087-2094

Ort / Verlag

Amsterdam: Elsevier

Erscheinungsjahr

2011

Link zum Volltext

Quelle

Elsevier ScienceDirect Journals Complete

Beschreibungen/Notizen

• The fabrication and full characterization of luminescent solar concentrators (LSCs) comprising CdSe core/multishell quantum dots (QDs) is reported. TEM analysis shows that the QDs are well dispersed in the acrylic medium while maintaining a high quantum yield of 45%, resulting in highly transparent and luminescent polymer plates. A detailed optical analysis of the QD-LSCs including absorption, emission, and time-resolved fluorescence measurements is presented. Both silicon and GaAs solar cells attached to the side of the QD-LSCs are used to measure the external quantum efficiency and power conversion efficiency (2.8%) of the devices. Stability tests show only a minor decrease of 4% in photocurrent upon an equivalent of three months outdoor illumination. The optical data are used as input for a ray-trace model that is shown to describe the properties of the QD-LSCs well. The model was then used to extrapolate the properties of the small test devices to predict the power conversion efficiency of a 50x50 cm[super]2 module with a variety of different solar cells. The work described here gives a detailed insight into the promise of QD-based LSCs.