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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
Author(s)
Jeong, Soon MoonSong, SeongkyuKim, Hyunmin
Issued Date
2016-03
Citation
Nano Energy, v.21, pp.154 - 161
Type
Article
Author Keywords
MechanoluminescenceElectroluminescenceColorDual-channelComposite
Keywords
ColorCOMPOSITEComposite MaterialsCU-DOPED ZNSDEVICESDual-ChannelDual ChannelElectric FieldsElectroluminescenceIndependent ControlLightLIGHT-SOURCELight SourcesLUMINESCENCEMechanical ExcitationsMechanical StimulusMechanical StressMechanoluminescenceNANOCRYSTALSPHOTOLUMINESCENCESILVER 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
  • 정순문 Jeong, Soon Moon
  • Research Interests Mechanoluminescence; 기계발광; Electroluminescence; 전계발광; Display; 디스플레이; Stretchable; 스트레쳐블; Battery-free; 무전원
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Appears in Collections:
Division of Energy & Environmental Technology Soft Optoelectronic Materials Lab. 1. Journal Articles
Division of Biomedical Technology 1. Journal Articles

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