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  4. A systematic investigation of permeation barriers for flexible dye-sensitized solar cells
 
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2016
Journal Article
Titel

A systematic investigation of permeation barriers for flexible dye-sensitized solar cells

Abstract
Dye solar cells (DSCs), in their flexible form, are prone to ageing due to ingress of gas as a result of the intrinsic permeability of polymer substrates. Thus, it is important to develop proper encapsulation strategies to limit degradation. Literature on flexible DSCs lacks comparative tests with different permeation barriers, including flexible ultrahigh barriers (UHB). We designed such tests and applied UHBs to flexible DSCs for the first time. We demonstrate that UHBs double the lifetime of cells with respect to those with none or less-effective barriers. Degradation is due to a combination of electrolyte bleaching, dye detachment, and indium tin oxide (ITO) degradation. The reduced, though still noticeable, performance loss for UHB- and glass-equipped cells can be mainly ascribed to lateral permeation of gas/water, suggesting that efficient solutions for edge encapsulation must be developed to extend lifetimes further.
Author(s)
Rossi, Francesca de
University of Rome Tor Vergata Department of Electronic Engineering, Rome
Mincuzzi, Girolamo
University of Rome Tor Vergata Department of Electronic Engineering, Rome
Giacomo, Francesco di
University of Rome Tor Vergata Department of Electronic Engineering, Rome
Fahlteich, John
Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
Amberg-Schwab, Sabine
Fraunhofer-Institut für Silicatforschung ISC
Noller, Klaus
Fraunhofer-Institut für Verfahrenstechnik und Verpackung IVV
Brown, Thomas M.
University of Rome Tor Vergata Department of Electronic Engineering, Rome
Zeitschrift
Energy technology
Project(s)
CHEETAH
Funder
European Commission EC
Thumbnail Image
DOI
10.1002/ente.201600244
Language
English
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Fraunhofer-Institut für Organische Elektronik, Elektronenstrahl- und Plasmatechnik FEP
Fraunhofer-Institut für Silicatforschung ISC
Fraunhofer-Institut für Verfahrenstechnik und Verpackung IVV
Tags
  • solar cells

  • dyes

  • energy conversion

  • nanotechnology

  • stability

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