Trapping light with micro lenses in thin film organic photovoltaic cells
2008 (English)In: Optics Express, ISSN 1094-4087, Vol. 16, no 26, 21608-21615 p.Article in journal (Refereed) Published
We demonstrate a novel light trapping configuration based on an array of micro lenses in conjunction with a self aligned array of micro apertures located in a highly reflecting mirror. When locating the light trapping element, that displays strong directional asymmetric transmission, in front of thin film organic photovoltaic cells, an increase in cell absorption is obtained. By recycling reflected photons that otherwise would be lost, thinner films with more beneficial electrical properties can effectively be deployed. The light trapping element enhances the absorption rate of the solar cell and increases the photocurrent by as much as 25%.
Place, publisher, year, edition, pages
2008. Vol. 16, no 26, 21608-21615 p.
National CategoryNatural Sciences
IdentifiersURN: urn:nbn:se:liu:diva-16406DOI: 10.1364/OE.16.021608OAI: oai:DiVA.org:liu-16406DiVA: diva2:139525
On the day of the defence date the status of this article was: In Manuscript.2009-01-232009-01-232009-05-15Bibliographically approved