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Title: Two step sintering process and metal grid design optimization for highly efficient ITO free organic photovoltaics
Authors: Neophytou, Marios 
Georgiou, Efthymios 
Fyrillas, Marios M. 
Choulis, Stelios A. 
Major Field of Science: Engineering and Technology
Field Category: Environmental Engineering
Keywords: Inkjet printing;ITO-Free electrodes;Metal grids;Printed electronics;Silver nanoparticles;Transparent electrodes
Issue Date: 1-Mar-2014
Source: Solar Energy Materials and Solar Cells, 2014, vol. 122, pp. 1-7
Volume: 122
Start page: 1
End page: 7
Journal: Solar Energy Materials and Solar Cells 
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.
ISSN: 1879-0248
DOI: 10.1016/j.solmat.2013.11.021
Collaboration : Cyprus University of Technology
Frederick University
Rights: © Elsevier
Type: Article
Appears in Collections:Άρθρα/Articles

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