The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells

Abstract The light-emitting electrochemical cell (LEC) is functional at substantial active-layer thickness, and is as such heralded for being fit for low-cost and fault-tolerant solution-based fabrication. We report here that this statement should be moderated, and that in order to obtain a strong l...

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Autores principales:	E. Mattias Lindh, Petter Lundberg, Thomas Lanz, Jonas Mindemark, Ludvig Edman
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2018
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/aea34aef2f404d889cea4ae5bfa12672
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spelling	oai:doaj.org-article:aea34aef2f404d889cea4ae5bfa126722021-12-02T12:32:36ZThe Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells10.1038/s41598-018-25287-x2045-2322https://doaj.org/article/aea34aef2f404d889cea4ae5bfa126722018-05-01T00:00:00Zhttps://doi.org/10.1038/s41598-018-25287-xhttps://doaj.org/toc/2045-2322Abstract The light-emitting electrochemical cell (LEC) is functional at substantial active-layer thickness, and is as such heralded for being fit for low-cost and fault-tolerant solution-based fabrication. We report here that this statement should be moderated, and that in order to obtain a strong luminous output, it is fundamentally important to fabricate LEC devices with a designed thickness of the active layer. By systematic experimentation and simulation, we demonstrate that weak optical microcavity effects are prominent in a common LEC system, and that the luminance and efficiency, as well as the emission color and the angular intensity, vary in a periodic manner with the active-layer thickness. Importantly, we demonstrate that high-performance light-emission can be attained from LEC devices with a significant active-layer thickness of 300 nm, which implies that low-cost solution-processed LECs are indeed a realistic option, provided that the device structure has been appropriately designed from an optical perspective.E. Mattias LindhPetter LundbergThomas LanzJonas MindemarkLudvig EdmanNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 8, Iss 1, Pp 1-10 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q E. Mattias Lindh Petter Lundberg Thomas Lanz Jonas Mindemark Ludvig Edman The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells
description	Abstract The light-emitting electrochemical cell (LEC) is functional at substantial active-layer thickness, and is as such heralded for being fit for low-cost and fault-tolerant solution-based fabrication. We report here that this statement should be moderated, and that in order to obtain a strong luminous output, it is fundamentally important to fabricate LEC devices with a designed thickness of the active layer. By systematic experimentation and simulation, we demonstrate that weak optical microcavity effects are prominent in a common LEC system, and that the luminance and efficiency, as well as the emission color and the angular intensity, vary in a periodic manner with the active-layer thickness. Importantly, we demonstrate that high-performance light-emission can be attained from LEC devices with a significant active-layer thickness of 300 nm, which implies that low-cost solution-processed LECs are indeed a realistic option, provided that the device structure has been appropriately designed from an optical perspective.
format	article
author	E. Mattias Lindh Petter Lundberg Thomas Lanz Jonas Mindemark Ludvig Edman
author_facet	E. Mattias Lindh Petter Lundberg Thomas Lanz Jonas Mindemark Ludvig Edman
author_sort	E. Mattias Lindh
title	The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells
title_short	The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells
title_full	The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells
title_fullStr	The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells
title_full_unstemmed	The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells
title_sort	weak microcavity as an enabler for bright and fault-tolerant light-emitting electrochemical cells
publisher	Nature Portfolio
publishDate	2018
url	https://doaj.org/article/aea34aef2f404d889cea4ae5bfa12672
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The Weak Microcavity as an Enabler for Bright and Fault-tolerant Light-emitting Electrochemical Cells

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