Abstract:
:Dynamic modulation of soft helix in terms of the molecular organization, handedness, and pitch length could result in a sophisticated control over its functions, opening numerous possibilities toward the exploration of previously unidentified applications. Here, we report a dynamic and reversible transformation of a soft helical superstructure among the helicoidal (molecules orthogonal to helical axis), heliconical (molecules oblique to the helical axis, i.e., oblique helicoidal), and their inverse helices, together with a tunability on the helical pitch, by combining electrical and optical manipulations. This multistate transformation depends on a matching of the temperature, the strength of external stimuli, and the bend and twist elastic effects of the system. A laser emission with tunable wavelength and polarization, and prescribed micropatterns formed by any aforementioned architectures were achieved.
journal_name
Sci Advjournal_title
Science advancesauthors
Yuan CL,Huang W,Zheng ZG,Liu B,Bisoyi HK,Li Y,Shen D,Lu Y,Li Qdoi
10.1126/sciadv.aax9501subject
Has Abstractpub_date
2019-10-04 00:00:00pages
eaax9501issue
10issn
2375-2548pii
aax9501journal_volume
5pub_type
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