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Energy Express

  • Editor: Bernard Kippelen
  • Vol. 18, Iss. S3 — Sep. 13, 2010
  • pp: A444–A450

Structural templating of multiple polycrystalline layers in organic photovoltaic cells

Brian E. Lassiter, Richard R. Lunt, C. Kyle Renshaw, and Stephen R. Forrest  »View Author Affiliations

Optics Express, Vol. 18, Issue S3, pp. A444-A450 (2010)

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We demonstrate that organic photovoltaic cell performance is influenced by changes in the crystalline orientation of composite layer structures. A 1.5 nm thick self-organized, polycrystalline template layer of 3,4,9,10-perylenetetracarboxylic dianhydride (PTCDA) orients subsequently deposited layers of a diindenoperylene exciton blocking layer, and the donor, copper phthalocyanine (CuPc). Control over the crystalline orientation of the CuPc leads to changes in its frontier energy levels, absorption coefficient, and surface morphology, resulting in an increase of power conversion efficiency at 1 sun from 1.42 ± 0.04% to 2.19 ± 0.05% for a planar heterojunction and from 1.89 ± 0.05% to 2.49 ± 0.03% for a planar-mixed heterojunction.

© 2010 OSA

OCIS Codes
(040.5350) Detectors : Photovoltaic
(160.4890) Materials : Organic materials

ToC Category:

Original Manuscript: June 28, 2010
Revised Manuscript: August 27, 2010
Manuscript Accepted: August 27, 2010
Published: September 1, 2010

Virtual Issues
Focus Issue: Thin-Film Photovoltaic Materials and Devices (2010) Optics Express

Brian E. Lassiter, Richard R. Lunt, C. Kyle Renshaw, and Stephen R. Forrest, "Structural templating of multiple polycrystalline layers in organic photovoltaic cells," Opt. Express 18, A444-A450 (2010)

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  1. S. R. Forrest, “The path to ubiquitous and low-cost organic electronic appliances on plastic,” Nature 428(6986), 911–918 (2004). [CrossRef] [PubMed]
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