Study of Optical Properties of composite layers of MEH-PPV nanopillars and PEDOT:PSS films

Fabrication of MEH-PPV nanopillars was completed using porous Anodic Aluminium Oxide (AAO) templates. The diameter and height of the nanopillars was controlled by adjusting the dimensions of the template. The morphology of the nanopillars was studied using scanning electron microscopy. The absorption of light of MEH-PPV nanopillars plus thin film was greater than that of the thin film only, both being the same thickness.The dimensions of nanopillars are essential for carrier processes such as exciton generation, exciton diffusion and carrier dissociation and transport. As PEDOT: PSS can enhance hole collection and exciton diffusion, addition of PEDOT: PSS improves the performance of solar cells. The variation in optical properties of composite material consisting of MEH-PPV nanopillars and PEDOT:PSS films will be investigated using UV-Vis spectroscopy and fluorescence spectroscopy with change in height and diameters of the MEH-PPV nanopillars.