DC-driven, sub-2 V solid-state electrochemiluminescent devices by incorporating redox coreactants into emissive ion gels

Hong Chul Moon; Timothy P. Lodge; C. Daniel Frisbie

doi:10.1021/cm502491n

DC-driven, sub-2 V solid-state electrochemiluminescent devices by incorporating redox coreactants into emissive ion gels

Hong Chul Moon, Timothy P. Lodge, C. Daniel Frisbie

Department of Chemical Engineering

University of Minnesota Twin Cities

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

54 Scopus citations

Abstract

We demonstrate a DC-driven solid-state electrochemiluminescent (ECL) device based on a solution-processable ion gel containing luminescent complexes and tetrabutylammonium oxalate (TBAOX) as a coreactant. The ECL gel, comprising a polystyrene-block-poly(methyl methacrylate)-block-polystyrene copolymer, 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl)- imide ionic liquid, tris(2,2'-bipyridine)ruthenium(II) hexafluorophosphate (Ru(bpy)₃(PF₆)₂) and TBAOX, was cast as a film on indium tin oxide-coated glass (anode) by spin-coating, and a top electrode (cathode) was prepared by brush-painting Ag paint. Application of 1.6 V DC bias across the device resulted in the onset of light emission. The maximum luminance was achieved at 1:5 mol ratio of Ru(bpy)₃(PF₆)₂ and TBAOX, and the turn-on voltage was independent of the composition. The simplicity of the ECL device and its low voltage operation characteristics make it potentially attractive as a display element for printed electronic circuits.

Original language	English
Pages (from-to)	5358-5364
Number of pages	7
Journal	Chemistry of Materials
Volume	26
Issue number	18
DOIs	https://doi.org/10.1021/cm502491n
State	Published - 1 Sep 2014

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title = "DC-driven, sub-2 V solid-state electrochemiluminescent devices by incorporating redox coreactants into emissive ion gels",

abstract = "We demonstrate a DC-driven solid-state electrochemiluminescent (ECL) device based on a solution-processable ion gel containing luminescent complexes and tetrabutylammonium oxalate (TBAOX) as a coreactant. The ECL gel, comprising a polystyrene-block-poly(methyl methacrylate)-block-polystyrene copolymer, 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl)- imide ionic liquid, tris(2,2'-bipyridine)ruthenium(II) hexafluorophosphate (Ru(bpy)3(PF6)2) and TBAOX, was cast as a film on indium tin oxide-coated glass (anode) by spin-coating, and a top electrode (cathode) was prepared by brush-painting Ag paint. Application of 1.6 V DC bias across the device resulted in the onset of light emission. The maximum luminance was achieved at 1:5 mol ratio of Ru(bpy)3(PF6)2 and TBAOX, and the turn-on voltage was independent of the composition. The simplicity of the ECL device and its low voltage operation characteristics make it potentially attractive as a display element for printed electronic circuits.",

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doi = "10.1021/cm502491n",

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T1 - DC-driven, sub-2 V solid-state electrochemiluminescent devices by incorporating redox coreactants into emissive ion gels

AU - Moon, Hong Chul

AU - Lodge, Timothy P.

AU - Frisbie, C. Daniel

PY - 2014/9/1

Y1 - 2014/9/1

N2 - We demonstrate a DC-driven solid-state electrochemiluminescent (ECL) device based on a solution-processable ion gel containing luminescent complexes and tetrabutylammonium oxalate (TBAOX) as a coreactant. The ECL gel, comprising a polystyrene-block-poly(methyl methacrylate)-block-polystyrene copolymer, 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl)- imide ionic liquid, tris(2,2'-bipyridine)ruthenium(II) hexafluorophosphate (Ru(bpy)3(PF6)2) and TBAOX, was cast as a film on indium tin oxide-coated glass (anode) by spin-coating, and a top electrode (cathode) was prepared by brush-painting Ag paint. Application of 1.6 V DC bias across the device resulted in the onset of light emission. The maximum luminance was achieved at 1:5 mol ratio of Ru(bpy)3(PF6)2 and TBAOX, and the turn-on voltage was independent of the composition. The simplicity of the ECL device and its low voltage operation characteristics make it potentially attractive as a display element for printed electronic circuits.

AB - We demonstrate a DC-driven solid-state electrochemiluminescent (ECL) device based on a solution-processable ion gel containing luminescent complexes and tetrabutylammonium oxalate (TBAOX) as a coreactant. The ECL gel, comprising a polystyrene-block-poly(methyl methacrylate)-block-polystyrene copolymer, 1-ethyl-3-methylimidazolium bis (trifluoromethylsulfonyl)- imide ionic liquid, tris(2,2'-bipyridine)ruthenium(II) hexafluorophosphate (Ru(bpy)3(PF6)2) and TBAOX, was cast as a film on indium tin oxide-coated glass (anode) by spin-coating, and a top electrode (cathode) was prepared by brush-painting Ag paint. Application of 1.6 V DC bias across the device resulted in the onset of light emission. The maximum luminance was achieved at 1:5 mol ratio of Ru(bpy)3(PF6)2 and TBAOX, and the turn-on voltage was independent of the composition. The simplicity of the ECL device and its low voltage operation characteristics make it potentially attractive as a display element for printed electronic circuits.

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U2 - 10.1021/cm502491n

DO - 10.1021/cm502491n

M3 - Article

AN - SCOPUS:84922570045

SN - 0897-4756

VL - 26

SP - 5358

EP - 5364

JO - Chemistry of Materials

JF - Chemistry of Materials

IS - 18

ER -

DC-driven, sub-2 V solid-state electrochemiluminescent devices by incorporating redox coreactants into emissive ion gels

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