Solution electrochemiluminescent microfluidic cell for flexible and stretchable display

R. Okumura; S. Takamatsu; E. Iwase; K. Matsumoto; I. Shimoyama

doi:10.1109/MEMSYS.2009.4805541

Solution electrochemiluminescent microfluidic cell for flexible and stretchable display

R. Okumura^*, S. Takamatsu, E. Iwase, K. Matsumoto, I. Shimoyama

^*Corresponding author for this work

Research output: Contribution to journal › Conference article › peer-review

4 Citations (Scopus)

Abstract

We developed liquid luminescent flexible displays using electrochemiluminescent solution as deformable luminescent material. The solution consisted of ruthenium complexes as light emitting material and ionic liquid as nonvolatile solvent. We injected the solution, to pattern and seal it, into microfluidic cells between two flexible films of polyethylene terephthalate substrates with indium tin oxide electrodes. The light emitting area of one cell was 2×2 mm² The gap between the electrodes was 100 μm. We measured the luminance of the cell during application of 5OHz/4.OVpp (peak-to-peak value) rectangular waves of voltage in bent condition. The device was bent along the convex curvature with radii of 60, 30 and 20 mm. The luminance was reduced by only 30 00 when the radius of curvature reached 20 mm. We conclude the electrochemiluminescent cells are suitable for flexible displays because they can tolerate large deformation of bending.

Original language	English
Article number	4805541
Pages (from-to)	947-950
Number of pages	4
Journal	Proceedings of the IEEE International Conference on Micro Electro Mechanical Systems (MEMS)
DOIs	https://doi.org/10.1109/MEMSYS.2009.4805541
Publication status	Published - 2009 Jun 1
Externally published	Yes
Event	22nd IEEE International Conference on Micro Electro Mechanical Systems, MEMS 2009 - Sorrento, Italy Duration: 2009 Jan 25 → 2009 Jan 29

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics
Mechanical Engineering
Electrical and Electronic Engineering

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title = "Solution electrochemiluminescent microfluidic cell for flexible and stretchable display",

abstract = "We developed liquid luminescent flexible displays using electrochemiluminescent solution as deformable luminescent material. The solution consisted of ruthenium complexes as light emitting material and ionic liquid as nonvolatile solvent. We injected the solution, to pattern and seal it, into microfluidic cells between two flexible films of polyethylene terephthalate substrates with indium tin oxide electrodes. The light emitting area of one cell was 2×2 mm2 The gap between the electrodes was 100 μm. We measured the luminance of the cell during application of 5OHz/4.OVpp (peak-to-peak value) rectangular waves of voltage in bent condition. The device was bent along the convex curvature with radii of 60, 30 and 20 mm. The luminance was reduced by only 30 00 when the radius of curvature reached 20 mm. We conclude the electrochemiluminescent cells are suitable for flexible displays because they can tolerate large deformation of bending.",

author = "R. Okumura and S. Takamatsu and E. Iwase and K. Matsumoto and I. Shimoyama",

year = "2009",

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AU - Okumura, R.

AU - Takamatsu, S.

AU - Iwase, E.

AU - Matsumoto, K.

AU - Shimoyama, I.

PY - 2009/6/1

Y1 - 2009/6/1

N2 - We developed liquid luminescent flexible displays using electrochemiluminescent solution as deformable luminescent material. The solution consisted of ruthenium complexes as light emitting material and ionic liquid as nonvolatile solvent. We injected the solution, to pattern and seal it, into microfluidic cells between two flexible films of polyethylene terephthalate substrates with indium tin oxide electrodes. The light emitting area of one cell was 2×2 mm2 The gap between the electrodes was 100 μm. We measured the luminance of the cell during application of 5OHz/4.OVpp (peak-to-peak value) rectangular waves of voltage in bent condition. The device was bent along the convex curvature with radii of 60, 30 and 20 mm. The luminance was reduced by only 30 00 when the radius of curvature reached 20 mm. We conclude the electrochemiluminescent cells are suitable for flexible displays because they can tolerate large deformation of bending.

AB - We developed liquid luminescent flexible displays using electrochemiluminescent solution as deformable luminescent material. The solution consisted of ruthenium complexes as light emitting material and ionic liquid as nonvolatile solvent. We injected the solution, to pattern and seal it, into microfluidic cells between two flexible films of polyethylene terephthalate substrates with indium tin oxide electrodes. The light emitting area of one cell was 2×2 mm2 The gap between the electrodes was 100 μm. We measured the luminance of the cell during application of 5OHz/4.OVpp (peak-to-peak value) rectangular waves of voltage in bent condition. The device was bent along the convex curvature with radii of 60, 30 and 20 mm. The luminance was reduced by only 30 00 when the radius of curvature reached 20 mm. We conclude the electrochemiluminescent cells are suitable for flexible displays because they can tolerate large deformation of bending.

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Solution electrochemiluminescent microfluidic cell for flexible and stretchable display

Abstract

ASJC Scopus subject areas

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