Abstract
A single, self-assembled layer of highly uniform dielectric alumina nanoparticles improves the photovoltaic performance of organic semiconductor bulk heterojunction solar cells. The block copolymer based self-assembly approach is readily amenable to the large areas required for solar cell fabrication. A fraction of the performance gain results from incident light scattering which increases active layer absorption and photocurrent output, consistent with device simulations. The nanoparticle layer also roughens the device electrode surface, increasing contact area and improving device fill factor through more efficient charge collection.
Highlights
Follow this and additional works at: https://docs.lib.purdue.edu/nanopub Part of the Electronic Devices and Semiconductor Manufacturing Commons
A single, self-assembled layer of highly uniform dielectric alumina nanoparticles improves the photovoltaic performance of organic semiconductor bulk heterojunction solar cells
A significant challenge associated with reducing solar cell active layer thicknesses from >100 microns in singlecrystal silicon to $100 nm in organic semiconductor materials is maintaining a maximum amount of incident light absorption
Summary
Follow this and additional works at: https://docs.lib.purdue.edu/nanopub Part of the Electronic Devices and Semiconductor Manufacturing Commons. Jonathan E.; Ray, Biswajit; khan, Mohammad R.; Yager, Kevin G.; Alam, Muhammad Ashraful; and Black, Charles T., "Self-assembly of single dielectric nanoparticle layers and integration in polymer-based solar cells" (2012).
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