2015
DOI: 10.1038/srep17682
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Programmable thermal emissivity structures based on bioinspired self-shape materials

Abstract: Programmable thermal emissivity structures based on the bioinspired self-shape anisotropic materials were developed at macro-scale, and further studied theoretically at smaller scale. We study a novel concept, incorporating materials that are capable of transforming their shape via microstructural rearrangements under temperature stimuli, while avoiding the use of exotic shape memory materials or complex micro-mechanisms. Thus, programmed thermal emissivity behaviour of a surface is achievable. The self-shape … Show more

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Cited by 33 publications
(26 citation statements)
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“…Ge 2 Sb 2 Te 5 (GST) is another PCM material with amorphous and crystalline phases 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 . It has been widely used as a commercialized rewriteable optical storage medium in digital video disks owing to its phase-changing performance 46 , 47 .…”
Section: Introductionmentioning
confidence: 99%
“…Ge 2 Sb 2 Te 5 (GST) is another PCM material with amorphous and crystalline phases 38 , 39 , 40 , 41 , 42 , 43 , 44 , 45 . It has been widely used as a commercialized rewriteable optical storage medium in digital video disks owing to its phase-changing performance 46 , 47 .…”
Section: Introductionmentioning
confidence: 99%
“…The mechanistic behaviour / transformation of the aforementioned non-living tissues can be mimicked and controlled through the use of i) multi-layered fibrous anisotropic materials or ii) anisotropic nano-composites or iii) pre-stressed sheets, or iv) nano-reinforced multilayer hydrogels [11][12][13][14][15][16][17][18]. The geometry of these materials can be transformed under temperature stimulus or humidity, while their initial and final shapes can be determined by a) the geometry, b) the homogeneous or non-homogeneous nature of the materials' structure, as well as the c) the anisotropic nature of the different layers.…”
Section: Introductionmentioning
confidence: 99%
“…Furthermore, in architecture, large morph-able facades have been proposed for the shading of buildings 26 – 29 . The present authors have preliminary studied the feasibility to achieve variable thermal emissivity behaviour of a single self-shape structure 30 . The self-shape structures interact with their environment passively, as opposed to MEMs, which use high-voltage power supplies in order to change the effective thermal emissivity.…”
Section: Introductionmentioning
confidence: 99%
“…While the extremely heavy mechanical systems and complex MEMs use hinges, actuators in order to develop simple movements, in Nature extremely complex movements can be realized through the materials’ self-shaping & self-folding capabilities in response to a stimulus 30 . Thermonastic movements, meaning ‘folding caused by a temperature stimulus’, are realized in order to transform the shape of leaves/petals under a temperature stimulus.…”
Section: Introductionmentioning
confidence: 99%