The DOI matches its Crossref record; 13 of the 13 references it cites were found in a registry or an index.
Modeling photocurrent action spectra of photovoltaic devices based on organic thin films
Abstract
We have modeled experimental short-circuit photocurrent action spectra of poly(3-(4′-(1″,4″,7″-trioxaoctyl)phenyl)thiophene) (PEOPT)/fullerene (C60) thin film heterojunction photovoltaic devices. Modeling was based on the assumption that the photocurrent generation process is the result of the creation and diffusion of photogenerated species (excitons), which are dissociated by charge transfer at the PEOPT/C60 interface. The internal optical electric field distribution inside the devices was calculated with the use of complex indices of refraction and layer thickness of the materials as determined by spectroscopic ellipsometry. Contributions to the photocurrent from optical absorption in polymer and fullerene layers were both necessary to model the experimental photocurrent action spectra. We obtained values for the exciton diffusion range of 4.7 and 7.7 nm for PEOPT and C60, respectively. The calculated internal optical electric field distribution and resulting photocurrent action spectra were used in order to study the influence of the geometrical structure with respect to the efficiency of the thin film devices. In this way the photocurrent was optimized.
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Cites
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Cited by
Conjugated Polymer-Based Organic Solar Cells
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Renewed Prospects for Organic Photovoltaics
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Exciton diffusion in organic semiconductors
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Flexible and Semitransparent Organic Solar Cells
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Metadata
- Authors
- Pettersson, L. A. A., Roman, L. S., & Inganäs, O.
- Venue
- Journal of Applied Physics
- Publisher
- AIP Publishing
- Published
- 1999-07-01
- Volume
- 86
- Issue
- 1
- Pages
- 487-496
- ISSN
- 0021-8979 (ISSN-L)
- 1089-7550
- OpenAlex
- W2005126509
- Cited by
- 1,642
- References
- 13
- FWCI
- 8.45
- Type
- journal article
- Language
- en
- Open access
- closed
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Bibliographic data: Semantic Scholar, OpenAlex, Crossref.
Contains information from the Semantic Scholar Academic Graph Datasets, made available under the ODC Attribution License (ODC-BY 1.0).
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