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Enhanced spectral response in polymer bulk heterojunction solar cells by using active materials with complementary spectra
- Source :
- Solar Energy Materials and Solar Cells. 94:22-28
- Publication Year :
- 2010
- Publisher :
- Elsevier BV, 2010.
-
Abstract
- We have fabricated organic photovoltaic devices with blends of poly[9,9′-dioctyl-fluorene- co -bithiophene] (F8T2) and fullerene as an electron donor and electron acceptor, respectively. A significant improvement of the photovoltaic efficiency was found in device by using active materials with complementary spectra. The different weight ratios of composite film were also performed to correlate between morphology and the device performance. A power conversion efficiency (PCE) up to 2.0% with an open-circuit voltage of 0.85 V and a short-circuit current ( J SC ) of 5.3 mA/cm 2 , was achieved by blending the F8T2 with [6,6]-phenyl-C71-butyric acid methyl ester (PC[70]BM).
- Subjects :
- chemistry.chemical_classification
Renewable Energy, Sustainability and the Environment
Open-circuit voltage
Energy conversion efficiency
Analytical chemistry
Heterojunction
Electron donor
Electron acceptor
Polymer solar cell
Surfaces, Coatings and Films
Electronic, Optical and Magnetic Materials
law.invention
Polyfluorene
chemistry.chemical_compound
chemistry
law
Solar cell
Polymer chemistry
Subjects
Details
- ISSN :
- 09270248
- Volume :
- 94
- Database :
- OpenAIRE
- Journal :
- Solar Energy Materials and Solar Cells
- Accession number :
- edsair.doi...........69fbdfc3f7b78aa32da0fec0bc32182e
- Full Text :
- https://doi.org/10.1016/j.solmat.2009.02.019