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Graphene and Mobile Ions: The Key to All-Plastic, Solution-Processed Light-Emitting Devices
Umeå University.
Rutgers State University.
Rutgers State University.
Rutgers State University.
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2010 (English)In: ACS NANO, ISSN 1936-0851, Vol. 4, no 2, 637-642 p.Article in journal (Refereed) Published
Abstract [en]

The emerging field of "organic" or "plastic" electronics has brought low-voltage, ultrathin, and energy-efficient lighting and displays to market as organic light-emitting diode (OLED) televisions and displays in cameras and mobile phones. Despite using carbon-based materials as the light-emitting layer, previous efficient organic electronic light-emitting devices have required at least one metal electrode. Here, we utilize chemically derived graphene for the transparent cathode in an all-plastic sandwich-structure device, similar to an OLED, called a light-emitting electrochemical cell (LEC). Using a screen-printable conducting polymer as a partially transparent anode and a micro meter-thick active layer solution-deposited from a blend of a light-emitting polymer and a polymer electrolyte, we demonstrate a light-emitting device based solely on solution-processable carbon-based materials. Our results demonstrate that low-voltage, inexpensive, and efficient light-emitting devices can be made without using metals. In other words, electronics can truly be "organic".

Place, publisher, year, edition, pages
2010. Vol. 4, no 2, 637-642 p.
Keyword [en]
graphene, light-emitting device, polymer, light-emitting electrochemical cell, electroluminescence
National Category
Engineering and Technology
URN: urn:nbn:se:liu:diva-54266DOI: 10.1021/nn9018569ISI: 000274635800009OAI: diva2:302272
Available from: 2010-03-05 Created: 2010-03-05 Last updated: 2013-10-07

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Robinson, Nathaniel D
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Surface Physics and Chemistry The Institute of Technology
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