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Applied Physics Letters / Volume 48 / Issue 2
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Appl. Phys. Lett. 48, 183 (1986); http://dx.doi.org/10.1063/1.96937 (3 pages)

Two‐layer organic photovoltaic cell

C. W. Tang

Research Laboratories, Eastman Kodak Company, Rochester, New York 14650

(Received 28 August 1985; accepted 31 October 1985)

A thin‐film, two‐layer organic photovoltaic cell has been fabricated from copper phthalocyanine and a perylene tetracarboxylic derivative. A power conversion efficiency of about 1% has been achieved under simulated AM2 illumination. A novel feature of the device is that the charge‐generation efficiency is relatively independent of the bias voltage, resulting in cells with fill factor values as high as 0.65. The interface between the two organic materials, rather than the electrode/organic contacts, is crucial in determining the photovoltaic properties of the cell.

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KEYWORDS and PACS

Keywords

PHOTOVOLTAIC CELLS, FABRICATION, PERFORMANCE, EFFICIENCY, THIN FILMS, EXPERIMENTAL DATA, ELECTRIC POTENTIAL, ORGANIC COMPOUNDS, COPPER COMPOUNDS, ELECTRODES, ELECTROLYTES, LAYERS

PACS

  • 84.60.Jt

    Photoelectric conversion

  • 72.80.Le

    Polymers; organic compounds (including organic semiconductors)

  • 72.40.+w

    Photoconduction and photovoltaic effects

  • 73.40.Lq

    Other semiconductor-to-semiconductor contacts, p-n junctions, and heterojunctions

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.96937

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

  1. The first two-layer photovoltaic system appears to be that reported by D. R. Kearns and M. Calvin, in J. Chem. Phys. 29, 950 (1958JCPSA6000029000004000950000001). [ISI]
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  10. For the synthesis of perylene derivative PV, see T. Maki and H. Hashimoto, Bull. Chem. Soc. Jpn. 25, 411 (1952). [ISI]
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  14. K. Kawaoka and C. W. Tang (unpublished).

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