Surface plasmon increased absorption in polymer photovoltaic cells
2007 (English)In: Applied Physics Letters, ISSN 0003-6951, Vol. 91, no 11, 113514 - p.Article in journal (Refereed) Published
The authors demonstrate the triggering of surface plasmons at the interface of a metal grating and a photovoltaic bulk heterojunction blend of alternating polyfluorenes and a fullerene derivative. An increased absorption originating from surface plasmon resonances is confirmed by experimental reflection studies and theoretical modeling. Plasmonic resonances are further confirmed to influence the extracted photocurrent from devices. More current is generated at the wavelength position of the plasmon resonance peak. High conductivity polymer electrodes are used to build inverted sandwich structures with top anode and bottom metal grating, facilitating for triggering and characterization of the surface plasmon effects.
Place, publisher, year, edition, pages
2007. Vol. 91, no 11, 113514 - p.
IdentifiersURN: urn:nbn:se:liu:diva-14621DOI: 10.1063/1.2782910OAI: oai:DiVA.org:liu-14621DiVA: diva2:24022