期刊
NANOPHOTONICS
卷 7, 期 1, 页码 217-227出版社
WALTER DE GRUYTER GMBH
DOI: 10.1515/nanoph-2017-0025
关键词
butterfly wing; photonic prystal; thermal response; thermochromic; finite-difference time-domain
资金
- National Natural Science Foundation of China [51602205, 11274247, 51572169, 11574218, 11504243, 11604217]
- Natural Science Foundation of Guangdong Province, China [2016A030313042, 2015A030310400]
- Shanghai Rising-Star Program [16QA1402400]
- Science and Technology Innovation Commission of Shenzhen [JCYJ20160520165724531]
- Fundamental Research Funds for the Shenzhen University [2016025]
Subtle responsive properties can be achieved by the photonic crystal (PC) nanostructures of butterfly based on thermal expansion effect. The studies focused on making the sample visually distinct. However, the response is restricted by limited thermal expansion coefficients. We herein report a new class of reversible thermochromic response achieved by controlling the ambient refractive index in butterfly PC structure. The photonic ethanol-filled nanoarchitecture sample is simply assembled by sealing liquid ethanol filling Papilio ulysses butterfly wing. Volatile ethanol is used to modulate the ambient refractive index. The sample is sealed with glasses to ensure reversibility. Liquid ethanol filling butterfly wing demonstrated significant allochroic response to ambient refractive index, which can be controlled by the liquefaction and vaporization of ethanol. This design is capable of converting thermal energy into visual color signals. The mechanism of this distinct response is simulated and proven by band theory. The response properties are performed with different filled chemicals and different structure parameters. Thus, the reversible thermochromic response design might have potential use in the fields such as detection, photonic switch, displays, and so forth.
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