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Proceedings Paper

Surface relief diffraction gratings for plasmonic photocurrent enhancements in P3HT-PCBM solar cells
Author(s): Ribal Georges Sabat; Marcos Jose Leite Santos; Paul Rochon
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Paper Abstract

A 260 nm layer of organic bulk heterojunction blend of the polymer poly (3-hexylthiophene) (P3HT) and the fullerene [6,6]-phenyl C61-butyric (PCBM) was spin-coated in between aluminum and gold electrodes respectively on top of a laser inscribed azo polymer surface relief diffraction grating. Angle dependent surface plasmons (SP) with a large band gap were observed in the normalized photocurrent by the P3HT-PCBM layer as a function of wavelength. The highest increase in photocurrent was found to be 272% at a wavelength of 618 nm for a grating depth of 50 nm. The SP-induced photocurrents were also investigated as a function of the grating depth and spacing.

Paper Details

Date Published: 8 September 2011
PDF: 9 pages
Proc. SPIE 8007, Photonics North 2011, 80071U (8 September 2011); doi: 10.1117/12.902649
Show Author Affiliations
Ribal Georges Sabat, Royal Military College of Canada (Canada)
Marcos Jose Leite Santos, Univ. de São Paulo (Brazil)
Paul Rochon, Royal Military College of Canada (Canada)

Published in SPIE Proceedings Vol. 8007:
Photonics North 2011
Raman Kashyap; Michel Têtu; Rafael N. Kleiman, Editor(s)

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