Modelling the effects of field-dependent quantum efficiency in organic semiconductor Schottky barrier solar cells

The external characteristics of a β-metal-free phthalocyanine Schottky barrier solar cell are modelled. The model utilizes representative circuit parameters and calculates the photogeneration current based on depletion region absorption and the field dependence of photogeneration. Projected power ef...

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Bibliographic Details
Published inThin solid films Vol. 205; no. 1; pp. 69 - 75
Main Authors Whitlock, Jonsthan B., Panayotatos, Paul
Format Journal Article
LanguageEnglish
Published Lausanne Elsevier B.V 30.10.1991
Elsevier Science
Subjects
Condensed matter: electronic structure, electrical, magnetic, and optical properties
Electronic transport in condensed matter
Exact sciences and technology
Photoconduction and photovoltaic effects; photodielectric effects
Physics
Solar cell
Phthalocyanine
Photovoltaic effect
Semiconductor materials
Organic conductor
Theoretical study
Quantum effect
Photoconductivity
Schottky barrier
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Summary:The external characteristics of a β-metal-free phthalocyanine Schottky barrier solar cell are modelled. The model utilizes representative circuit parameters and calculates the photogeneration current based on depletion region absorption and the field dependence of photogeneration. Projected power efficiencies are calculated for the case where the effects of series resistance and absorption in the front contact are overcome. The field dependence of photogeneration of this particular material severely limits the solar cell efficiency. However, the model should be the applicable to any material with a similar field dependence of photogeneration. In addition, a method is suggested utilizing Förster radiationless transfer to improve the generation efficiency in organic photovoltaic devices.
ISSN:0040-6090
1879-2731
DOI:10.1016/0040-6090(91)90473-B