Cited 37 time in webofscience Cited 40 time in scopus

Mechanically driven light-generator with high durability

Title
Mechanically driven light-generator with high durability
Authors
Jeong, Soon MoonSong, SeongkyuLee, Soo-KeunChoi, Byeongdae
DGIST Authors
Jeong, Soon MoonLee, Soo-KeunChoi, Byeongdae
Issue Date
2013-02-04
Citation
Applied Physics Letters, 102(5)
Type
Article
Article Type
Article
Keywords
Composite FilmsDurabilityFlexible CompositesHigh DurabilityLuminescenceLuminescent IntensityMechanical StressOptical PhenomenaOptomechanicalReproducibilitiesSiliconesSmart SystemStress RatesStressesZinc Sulfide
ISSN
0003-6951
Abstract
Mechanically activated luminescence from solids (mechanoluminescence) is a classical optical phenomenon induced in a substance when stressed or cleaved. However, no practical application has been realized due to its low luminescent intensity and lack of reproducibility. We demonstrate highly bright and durable mechanoluminescent flexible composite films with a brightness of ∼120 cd/m2 and durability over ∼100 000 repeated mechanical stresses by using a combination of copper-doped zinc sulfide (ZnS:Cu) particles and polydimethylsiloxane. Furthermore, the possibility of mechanoluminescent color-tuning by changing the repetitive stress rate on the composite films is also suggested. These findings can open a window for developing smart systems and opto-mechanical devices. © 2013 American Institute of Physics.
URI
http://hdl.handle.net/20.500.11750/5323
DOI
10.1063/1.4791689
Publisher
American Institute of Physics Publishing
Related Researcher
Files:
There are no files associated with this item.
Collection:
Smart Textile Convergence Research Group1. Journal Articles
Intelligent Devices and Systems Research Group1. Journal Articles


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