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Proceedings Paper

Accurate measurement of organic solar cell efficiency
Author(s): K. Emery; T. Moriarty
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Paper Abstract

We discuss the measurement and analysis of current vs. voltage (I-V) characteristics of organic and dye-sensitized photovoltaic cells and modules. A brief discussion of the history of photovoltaic efficiency measurements and procedures will be presented. We discuss both the error sources in the measurements and the strategies to minimize their influence. These error sources include the sample area, spectral errors, temperature fluctuations, current and voltage response time, contacting, and degradation during testing. Information that can be extracted from light and dark I-V measurement includes peak power, open-circuit voltage, short-circuit current, series and shunt resistance, diode quality factor, dark current, and photo-current. The quantum efficiency provides information on photo-current nonlinearities, current generation, and recombination mechanisms.

Paper Details

Date Published: 26 August 2008
PDF: 6 pages
Proc. SPIE 7052, Organic Photovoltaics IX, 70520D (26 August 2008); doi: 10.1117/12.799606
Show Author Affiliations
K. Emery, National Renewable Energy Lab. (United States)
T. Moriarty, National Renewable Energy Lab. (United States)


Published in SPIE Proceedings Vol. 7052:
Organic Photovoltaics IX
Zakya H. Kafafi; Paul A. Lane, Editor(s)

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