Efforts to impart elasticity and multifunctionality in nanocomposites focus mainly on integrating polymeric and nanoscale components. Yet owing to the stochastic emergence and distribution of ...strain-concentrating defects and to the stiffening of nanoscale components at high strains, such composites often possess unpredictable strain-property relationships. Here, by taking inspiration from kirigami—the Japanese art of paper cutting—we show that a network of notches made in rigid nanocomposite and other composite sheets by top-down patterning techniques prevents unpredictable local failure and increases the ultimate strain of the sheets from 4 to 370%. We also show that the sheets' tensile behaviour can be accurately predicted through finite-element modelling. Moreover, in marked contrast to other stretchable conductors, the electrical conductance of the stretchable kirigami sheets is maintained over the entire strain regime, and we demonstrate their use to tune plasma-discharge phenomena. The unique properties of kirigami nanocomposites as plasma electrodes open up a wide range of novel technological solutions for stretchable electronics and optoelectronic devices, among other application possibilities.
CHIRALITY Shlian, Matthew
Issues in science and technology,
10/2016, Letnik:
33, Številka:
1
Journal Article
Recenzirano
Matthew Shlian is an artist and designer working in paper. He uses the traditions of origami, kirigami, and paper engineering to transform flat materials into 3D sculptures and he applies his ...experience in collaborative research with scientists at the University of Michigan, Ann Arbor. Origami is widely known as the art of paper folding, and kirigami extends it by integrating paper cutting, which can result in increasing a material's flexibility and functionality. Shlian collaborates with scientists who are applying kirigami techniques to the development of innovative designs that would enable solar cells to move and track the sun. Shlian's work with scientists has also influenced his art. Chirality, the title of his current exhibition at the National Academy of Sciences, refers to a property of asymmetry important in several branches of mathematics and science including genetics and biochemistry. It describes something that is not superimposable onto its mirror image; human hands are one of the most universally recognizable examples of this phenomenon.
Celotno besedilo
Dostopno za:
BFBNIB, DOBA, IZUM, KILJ, NMLJ, NUK, PILJ, PNG, SAZU, SIK, UILJ, UKNU, UL, UM, UPUK
A new PV architecture combining the advantages of concentration and flat-plate PVs is shown. Using origami techniques, fabrication and solar tracking of micro-concentrators were achieved.
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