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 hetero-junction organic photovoltaic cells (OPVs) of poly-3- hexylthiophene and phenyl-C61-butyric acid methyl es-ter (P3HT:PC61 BM) fabricated in ambient air condition as a model system. The current-voltage measurement of ITO/MoO3 /P3HT:PC61 BM/Al and Au incorporated OPVs under AM1.5G light of intensity 1 Sun showed 16% in- crease in short circuit current density (JSC ) 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.


Authors :P.M. Aneesh, C. Ram Kumar, P.C. Reshmi Varma, K. Vivek, and Manoj A.G. Namboothiry*
Year :2015
School :Physics
Genre :Jurnal Article
Journal :Organic Photonics and Photovoltaics
Volume :3
Pages :64–70