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Performance of hybrid buffer Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) layers doped with plasmonic silver nanoparticles

Kalfagiannis, N., Karagiannidis, Panagiotis, Pitsalidis, C., Hastas, N., Panagiotopoulos, N.T., Patsalas, P. and Logothetidis, S. (2014) Performance of hybrid buffer Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) layers doped with plasmonic silver nanoparticles. Thin Solid Films, 560. pp. 27-33. ISSN 00406090

Item Type: Article


We compare the performance of a typical hole transport layer for organic photovoltaics (OPVs), Poly(3,4-ethylenedioxythiophene) poly(styrenesulfonate) (PEDOT:PSS) thin film with a series of PEDOT:PSS layers doped with silver (Ag) nanoparticles (NPs) of various size distributions. These hybrid layers have attracted great attention as buffer layers in plasmonic OPVs, although there is no report up to date on their isolated performance. In the present study we prepared a series of PEDOT:PSS layers sandwiched between indium tin oxide (ITO) and gold (Au) electrodes. Ag NPs were deposited on top of the ITO by electron beam evaporation followed by spin coating of PEDOT:PSS. Electrical characterization performed in the dark showed linear resistive behavior for all the samples; lower resistance was observed for the hybrid ones. It was found that the resistivity of the samples decreases with increasing the particle's size. A substantial increase of the electric field between the ITO and the Au electrodes was seen through the formation of current paths through the Ag NPs. A striking observation is the slight increase in the slope of the current density versus voltage curves when measured under illumination for the case of the plasmonic layers, indicating that changes in the electric field in the vicinity of the NP due to plasmonic excitation is a non-vanishing factor.

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Depositing User: Panagiotis Karagiannidis


Item ID: 7756
Identification Number:
ISSN: 00406090
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ORCID for Panagiotis Karagiannidis: ORCID iD

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Date Deposited: 22 Sep 2017 14:32
Last Modified: 18 Dec 2019 15:41


Author: Panagiotis Karagiannidis ORCID iD
Author: N. Kalfagiannis
Author: C. Pitsalidis
Author: N. Hastas
Author: N.T. Panagiotopoulos
Author: P. Patsalas
Author: S. Logothetidis

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Faculty of Technology
Faculty of Technology > School of Engineering

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