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Simultaneous dual-channel blue/green emission from electro-mechanically powered elastomeric zinc sulphide composite

Title
Simultaneous dual-channel blue/green emission from electro-mechanically powered elastomeric zinc sulphide composite
Authors
Jeong, SM[Jeong, Soon Moon]Song, S[Song, Seongkyu]Kim, H[Kim, Hyunmin]
DGIST Authors
Jeong, SM[Jeong, Soon Moon]; Song, S[Song, Seongkyu]; Kim, H[Kim, Hyunmin]
Issue Date
2016-03
Citation
Nano Energy, 21, 154-161
Type
Article
Article Type
Article
Keywords
ColorCompositeComposite MaterialsDual-ChannelDual ChannelElectric FieldsElectroluminescenceIndependent ControlLightLight SourcesLuminescenceMechanical ExcitationsMechanical StimulusMechanical StressMechanoluminescenceSilver NanowiresSingle ChannelsStressesSustainable TechnologyTriboluminescenceZincZinc Sulfide
ISSN
2211-2855
Abstract
Mechanoluminescent (ML) materials, which luminesce in response to mechanical stimuli, are attractive candidates in developing energy-sustainable technology and are widely used in sensors, ubiquitous light sources, and displays. Metal-doped zinc sulphide (ZnS) is considered a promising ML material because it produces intense and lasting luminescence under repeated mechanical stresses. Previous studies of ZnS luminescence have focused on single-channel emission by electroluminescence (EL) or ML generated by applied electric fields or mechanical stresses, respectively. Here, we report the simultaneous generation of EL and ML from an elastomeric ZnS composite embedded with silver nanowires and demonstrate the independent control of both EL and ML responses. We describe the tuning of the strength and color of the EL/ML emissions from a single ZnS-based structure by applying combinations of electrical and mechanical excitation forces. We also demonstrate a multi-color-patterned EL/ML emitting display using the ZnS-based composite; this application may provide a basis for the development of new optomechanical displays. © 2016 Elsevier Ltd.
URI
http://hdl.handle.net/20.500.11750/2292
DOI
10.1016/j.nanoen.2016.01.012
Publisher
Elsevier B.V.
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles


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