Enhancement in Photovoltaic Properties of Plasmonic Nanostructures Incorporated Organic Solar Cells Processed in Air Using P3HT:PCBM as a Model Active Layer

The effect of incorporation of plasmonic gold (Au) nanoparticle at the interface between transparent front electrode and hole transporting layer of molybdenum trioxide is studied using bulk heterojunction organic photovoltaic cells (OPVs) of poly-3- hexylthiophene and phenyl-C -butyric acid methyl e...

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Bibliographic Details
Published in:Organic photonics and photovoltaics 2015-07, Vol.3 (1)
Main Authors: Aneesh, P.M., Kumar, C. Ram, Reshmi Varma, P.C., Vivek, K., Namboothiry, Manoj A.G.
Format: Article
Language:English
Subjects:
Bulk heterojunction
Metal oxide interfacial layer
Organic solar cells
P3HT:PCBM
Plasmonics
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Summary:The effect of incorporation of plasmonic gold (Au) nanoparticle at the interface between transparent front electrode and hole transporting layer of molybdenum trioxide is studied using bulk heterojunction organic photovoltaic cells (OPVs) of poly-3- hexylthiophene and phenyl-C -butyric acid methyl ester (P3HT:PC61BM) fabricated in ambient air condition as a model system. The current-voltage measurement of ITO/MoO3/P HT:PC BM/Al and Au incorporated OPVs under AM1.5G light of intensity 1 Sun showed 16% increase in short circuit current density (J ) and a 25% improvement in power conversion efficiency (PCE) with the incorporation of Au nanoparticles. The external quantum efficiency (EQE) measurement showed values varying from 40% to 60% over a wavelength range 350 nm to 700 nm with EQE enhancement over a broad spectral window. Scanning electron microscope studies were used to study the morphology of the Au nanoparticles made.
ISSN:2299-3177
2299-3177
DOI:10.1515/oph-2015-0006