Plasmonic effect of annealed gold islands for improving efficiency of organic solar cells

Notarianni, Marco, Vernon, Kristy, Chou, Alison, Liu, Jinzhang, & Motta, Nunzio (2015) Plasmonic effect of annealed gold islands for improving efficiency of organic solar cells. Advanced Device Materials, 1(1), pp. 27-32.

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Abstract

Embedding metallic nanoparticles in organic solar cells can enhance the photoabsorption through light trapping processes. This paper investigates how gold islands obtained by annealing 1–5 nm thick Au layers affect the photoabsorption. Using finite-difference time-domain simulations, the cell efficiency for various island geometries and thicknesses are analyzed and the properties of the islands for maximal photocurrent are discussed. It is shown that a careful choice of size and concentration of gold islands could contribute to enhance the power conversion efficiencies when compared to standard organic solar cell devices. The conclusions are then compared to experimental data for thermally annealed gold islands in bulk heterojunction solar cells. The results of this paper will contribute to the optimization of plasmonic organic solar cell systems and will pave the way for the development of highly efficient organic solar cell devices.

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ID Code: 81584
Item Type: Journal Article
Refereed: Yes
Keywords: Organic solar cells, Bulk heterojuncion, Plasmonic, Metallic nanoparticles, Gold
DOI: 10.1179/2055031614Y.0000000006
ISSN: 2055-0316
Subjects: Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > CONDENSED MATTER PHYSICS (020400) > Electronic and Magnetic Properties of Condensed Matter; Superconductivity (020404)
Australian and New Zealand Standard Research Classification > PHYSICAL SCIENCES (020000) > OPTICAL PHYSICS (020500) > Optical Physics not elsewhere classified (020599)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanomaterials (100708)
Australian and New Zealand Standard Research Classification > TECHNOLOGY (100000) > NANOTECHNOLOGY (100700) > Nanophotonics (100711)
Divisions: Current > Schools > School of Chemistry, Physics & Mechanical Engineering
Current > Institutes > Institute for Future Environments
Current > QUT Faculties and Divisions > Science & Engineering Faculty
Funding:
Copyright Owner: Copyright 2015 W. S. Maney & Son Ltd
Deposited On: 03 Feb 2015 22:56
Last Modified: 10 Sep 2016 06:47

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