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Stretchable, alternating-current-driven white electroluminescent device based on bilayer-structured quantum-dot-embedded polydimethylsiloxane elastomer

Title
Stretchable, alternating-current-driven white electroluminescent device based on bilayer-structured quantum-dot-embedded polydimethylsiloxane elastomer
Authors
Jeong, Soon MoonSong, Seong KyuKim, Hyun MinBaek, Seong HoKwak, Joon Seop
DGIST Authors
Jeong, Soon MoonKim, Hyun Min; Baek, Seong Ho
Issue Date
2017
Citation
RSC Advances, 7(15), 8816-8822
Type
Article
Article Type
Article
Keywords
Alternating CurrentBi-Layer StructureColor ConversionsElectric Impedance MeasurementElectro Optical PerformanceElectroluminescenceEmitting LayerLuminescent DevicesMicrochannelsNanocrystalsOptoelectronic DevicesPolydimethylsiloxane (PDMS)Polydimethylsiloxane ElastomersSemiconductor Quantum DotsSiliconesWhite-Light GenerationZinc Sulfide
ISSN
2046-2069
Abstract
In this work, we demonstrate neutral/pure/cool white light due to color conversion from quantum dot (QD)-embedded, polydimethylsiloxane (PDMS)-based alternating-current-driven electroluminescent (ACEL) devices. White light generation is achieved by the spontaneously formed bilayer-structure emitting layer (b-EML) comprising QDs embedded in PDMS containing Cu-doped zinc sulfide (ZnS:Cu) particles (EL emitting layer), without ZnS:Cu (color conversion layer). Red light is generated by CdSe/CdZnS QDs, which partially absorbs electrically excited blue-green EL. This study examines the use of spontaneously formed b-EML as a means of alleviating the problems resulting from QD aggregation in PDMS and its effects on electro-optical performance of ACEL devices under stretching conditions. © The Royal Society of Chemistry.
URI
http://hdl.handle.net/20.500.11750/5052
DOI
10.1039/c7ra00195a
Publisher
Royal Society of Chemistry
Related Researcher
Files:
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Collection:
Smart Textile Convergence Research Group1. Journal Articles
Companion Diagnostics and Medical Technology Research Group1. Journal Articles


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