The EPSRC nanotechnology image library

Image by Ashley Cadby - University of Sheffield, UK

AFM image of a phase-separated blend of two conjugated polymers. Both materials are flourescent; however, energy transfer occurs between the polymers to the lowest energy-gap material. Optical measurements indicate that the fluorescence efficiency of the lower energy-gap polymer varies strongly across the film surface, and is greatest in the lower-lying regions.

Composite materials of this nature may find applications in new and relatively inexpensive forms of solar cell. Further information about this possibility may be gleaned from viewing the "Photovoltaics" movie on our video page.

This image is also available for download in the following formats:

• Image format = JPEG; physical size = 1280x1457 pixels; file size = 952 KB : DOWNLOAD

 

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This work is licensed under a Creative Commons Attribution-No Derivative Works 3.0 License. All image post-treatments by Andy Eccleston.