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Proceedings Paper

Plasmonic-enhanced organic solar cells
Author(s): Shiva Shahin; Palash Gangopadhyay; Robert Norwood
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Paper Abstract

Organic bulk-heterojunction solar cells have several good characteristics, such as ease of fabrication, and low-cost materials. However, the bottleneck in their adoption is their much lower efficiency as compared with their silicon counterparts. In our previous work, we demonstrated that by appropriately inserting AuNPs in the OPV device, the efficiency can be increased by 30% and that silanization of ITO positively impacts device performance, where we identified the field enhancement due to AuNPs as the main reason for the increase in the efficiency of the device. In this work, we further investigate the impact of self-assembly of the gold nanoparticles on the efficiency by also considering two other factors which can possibly contribute to the improvement of our structure’s performance. One is the change in the substrate’s workfunction after silanization, and the other factor is the variations in PEDOT: PSS characteristics due to the AuNPs’ plasmonic resonance. We conclude that the AuNPs not only increase the photon absorption efficiency but also increase the conductivity of the surrounding medium (PEDOT: PSS) thereby facilitating charge transport through PEDOT: PSS.

Paper Details

Date Published: 12 October 2012
PDF: 6 pages
Proc. SPIE 8471, Next Generation (Nano) Photonic and Cell Technologies for Solar Energy Conversion III, 84710D (12 October 2012); doi: 10.1117/12.930406
Show Author Affiliations
Shiva Shahin, College of Optical Sciences, The Univ. of Arizona (United States)
Palash Gangopadhyay, College of Optical Sciences, The Univ. of Arizona (United States)
Robert Norwood, College of Optical Sciences, The Univ. of Arizona (United States)


Published in SPIE Proceedings Vol. 8471:
Next Generation (Nano) Photonic and Cell Technologies for Solar Energy Conversion III
Loucas Tsakalakos, Editor(s)

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