Title: Optimisation of the fabrication conditions of the PEDOT:PSS layer in organic solar cells based on P3HT:PCBM

Authors: Omayma A. Ghazy; Mervat M. Ibrahim; Faten I. Abou Elfadl; Hany M. Hosni; Eman M. Shehata; Noha M. Deghiedy; Mohamed R. Balboul

Addresses: National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt ' National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt ' National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt ' National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt ' National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt ' National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt ' National Center for Radiation Research and Technology, 3 Ahmed Elzomorst, Nasr City, Cairo, Egypt

Abstract: This study aimed at studying the effect of the quality and thickness of PEDOT:PSS buffer layer that used in organic solar cells, on the performance of the cell. The effect of diluting the PEDOT:PSS dispersion with methanol on the morphology and thickness of the thin layer was studied using SEM and AFM. The results showed the dilution with 1:2. The effect of the buffer layer thickness on the performance of the solar cells based on P3HT:PCBM was studied using AFM and I-V measurements. It was found that a layer of thickness 40 nm is optimum for the best performance.

Keywords: PEDOT:PSS layer; poly(3,4-ethylenedioxythiophene); sodium polystyrene sulfonate; organic solar cells; P3HT:PCBM; optimisation; dilution; buffer layer thickness; cell performance.

DOI: 10.1504/IJNP.2014.067612

International Journal of Nanoparticles, 2014 Vol.7 No.3/4, pp.251 - 260

Available online: 17 Feb 2015 *

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