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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*|
|Genre :||Jurnal Article|
|Journal :||Organic Photonics and Photovoltaics|