Cited 13 time in webofscience Cited 14 time in scopus

Textile-fiber-embedded multiluminescent devices: A new approach to soft display systems

Title
Textile-fiber-embedded multiluminescent devices: A new approach to soft display systems
Authors
Song, SeongkyuSong, BokyungCho, Chang-HeeLim, Sang KyooJeong, Soon Moon
DGIST Authors
Song, Seongkyu; Cho, Chang-HeeLim, Sang KyooJeong, Soon Moon
Issue Date
2020-02
Citation
Materials Today, 32, 46-58
Type
Article
Article Type
Article
Keywords
TRANSPARENT
ISSN
1369-7021
Abstract
In the recent remarkable advances in soft electronic systems, light-emitting functions play a prominent role. In particular, polymer composite systems with embedded luminescent particles have attracted considerable attention as a luminescent component owing to their flexibility and simple fabrication. However, most flexible composite-based electroluminescent (EL) devices have coplanar structures, requiring mechanically compliant electrodes with high transmittance, durability, and stable electrical conductivity. This is a limitation for systems designed for providing superior flexible characteristics without loss of luminescence. Here, we introduce a novel EL device architecture—a durable/flexible textile-fiber-embedded polydimethylsiloxane and zinc sulfide (PDMS + ZnS) composite, driven by an in-plane electric field, which eliminates the requirement for high transmittance. On applying an AC voltage, light is radially emitted from the ZnS particles surrounding the fibers, originating from the radially distributed electric/optical fields; the rolling and stretching flexibilities are maintained during this process. The device also exhibits strong EL intensities in a thick emitting layer—a parameter on which EL and mechanoluminescent (ML) intensities in coplanar structures are dependent. This is because the electric field is applied between in-plane fibers. Using this smart design, simultaneously high EL and ML intensities can be simply achieved by embedding fibers in strong ML-emitting PDMS + ZnS. We also present a patterned device controlled by different fiber embedding depths, utilizing the vertical and in-plane electric fields. This application may provide a basis for the development of emerging soft display systems that require high luminescence as well as flexibility in the light-emitting components. © 2019 Elsevier Ltd
URI
http://hdl.handle.net/20.500.11750/10973
DOI
10.1016/j.mattod.2019.08.004
Publisher
Elsevier BV
Related Researcher
  • Author Cho, Chang-Hee Future Semiconductor Nanophotonics Laboratory
  • Research Interests Semiconductor; Nanophotonics; Light-Matter Interaction
Files:
There are no files associated with this item.
Collection:
Department of Emerging Materials ScienceFuture Semiconductor Nanophotonics Laboratory1. Journal Articles
Division of Energy Technology1. Journal Articles


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