Determining the internal quantum efficiency of highly efficient polymer solar cells through optical modeling
Top Cited Papers
- 2 April 2007
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 90 (14) , 143506
- https://doi.org/10.1063/1.2718488
Abstract
A power conversion efficiency of 4.2% (AM1.5, 1000 W ∕ m 2 ) is measured for an organic solar cell based on an active layer of an alternating copolymer, containing a fluorene and a benzothiadiazole unit with two neighboring thiophene rings, and a fullerene derivative. Using optical modeling, the absorption profile in the active layer of the solar cell is calculated and used to calculate the maximum short circuit current. The calculated currents are compared with measuredcurrents from current-voltage measurements for various film thicknesses. From this the internal quantum efficiency is estimated to be 75% at the maximum for the best device.Keywords
This publication has 14 references indexed in Scilit:
- Solar cell efficiency tables (version 28)Progress In Photovoltaics, 2006
- Influence of Solvent Mixing on the Morphology and Performance of Solar Cells Based on Polyfluorene Copolymer/Fullerene BlendsAdvanced Functional Materials, 2006
- Bimolecular recombination in polymer/fullerene bulk heterojunction solar cellsApplied Physics Letters, 2006
- Material and device concepts for organic photovoltaics: towards competitive efficienciesThin Solid Films, 2004
- Fluorene-based low band-gap copolymers for high performance photovoltaic devicesApplied Physics Letters, 2004
- High‐Performance Polymer Solar Cells of an Alternating Polyfluorene Copolymer and a Fullerene DerivativeAdvanced Materials, 2003
- EFFICIENT POLYFLUORENE BASED SOLAR CELLSSynthetic Metals, 2003
- Organic photovoltaic materials and devicesComptes Rendus Physique, 2002
- Temperature dependence for the photovoltaic device parameters of polymer-fullerene solar cells under operating conditionsJournal of Applied Physics, 2001
- Electrical Conductivity in Doped PolyacetylenePhysical Review Letters, 1977