Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics

Marios Neophytou; Efthymios Georgiou; Marios M. Fyrillas; Stelios A. Choulis

doi:10.1016/j.solmat.2013.11.021

Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics

Marios Neophytou, Efthymios Georgiou, Marios M. Fyrillas, Stelios A. Choulis

Department of Mechanical and Aerospace Engineering

Research output: Contribution to journal › Article › peer-review

20 Citations (Scopus)

Abstract

The need for inexpensive alternative to indium doped tin oxide (ITO) transparent electrodes is imminent for cost-efficient solution processed optoelectronic applications. ITO-free transparent electrodes can be based on inkjet-printed Silver (Ag) nanoparticles grids embedded into PEDOT:PSS buffer layers. We present an in-depth investigation of the morphological evolution of the inkjet printed Ag nanopartricle sintering process combined with an ultimate control of the printed grid design requirements for efficient ITO-free organic photovoltaics (OPVs). We report on glass/ITO-free P3HT:PC₆₀BM and Si-PCPDTBT:PC₇₀BM based OPVs with power conversion efficiency of 2.8% and 4.9% respectively. These devices exhibited minimal losses when compared to reference ITO-based OPVs.

Original language	English
Pages (from-to)	1-7
Number of pages	7
Journal	Solar Energy Materials and Solar Cells
Volume	122
DOIs	https://doi.org/10.1016/j.solmat.2013.11.021
Publication status	Published - Mar 2014

Keywords

ITO-Free electrodes
Inkjet printing
Metal grids
Printed electronics
Silver nanoparticles
Transparent electrodes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Renewable Energy, Sustainability and the Environment
Surfaces, Coatings and Films

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title = "Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics",

abstract = "The need for inexpensive alternative to indium doped tin oxide (ITO) transparent electrodes is imminent for cost-efficient solution processed optoelectronic applications. ITO-free transparent electrodes can be based on inkjet-printed Silver (Ag) nanoparticles grids embedded into PEDOT:PSS buffer layers. We present an in-depth investigation of the morphological evolution of the inkjet printed Ag nanopartricle sintering process combined with an ultimate control of the printed grid design requirements for efficient ITO-free organic photovoltaics (OPVs). We report on glass/ITO-free P3HT:PC60BM and Si-PCPDTBT:PC70BM based OPVs with power conversion efficiency of 2.8% and 4.9% respectively. These devices exhibited minimal losses when compared to reference ITO-based OPVs.",

keywords = "ITO-Free electrodes, Inkjet printing, Metal grids, Printed electronics, Silver nanoparticles, Transparent electrodes",

author = "Marios Neophytou and Efthymios Georgiou and Fyrillas, {Marios M.} and Choulis, {Stelios A.}",

note = "Funding Information: This work was co-funded by the European Regional Development Fund and the Republic of Cyprus through the Research Promotion Foundation (Strategic Infrastructure Project ΝΕΑ ΥΠΟΔΟΜΗ/ΣΤΡΑΤΗ/0308/06 ). We would like to thank F. Hermerschmidt and V. Drakonakis for critical reading of the manuscript and fruitful discussions.",

year = "2014",

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doi = "10.1016/j.solmat.2013.11.021",

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AU - Choulis, Stelios A.

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