RT Journal Article
SR Electronic
T1 A general route to nanocrystal kebabs periodically assembled on stretched flexible polymer shish
JF Science Advances
JO Sci Adv
FD American Association for the Advancement of Science
SP e1500025
DO 10.1126/sciadv.1500025
VO 1
IS 2
A1 Xu, Hui
A1 Xu, Yuci
A1 Pang, Xinchang
A1 He, Yanjie
A1 Jung, Jaehan
A1 Xia, Haiping
A1 Lin, Zhiqun
YR 2015
UL http://advances.sciencemag.org/content/1/2/e1500025.abstract
AB Assembling nanoparticles into one-dimensional (1D) nanostructures with precisely controlled size and shape renders the exploration of new properties and construction of 1D miniaturized devices possible. The physical properties of such nanostructures depend heavily on the size, chemical composition, and surface chemistry of nanoparticle constituents, as well as the close proximity of adjacent nanoparticles within the 1D nanostructure. Chemical synthesis provides an intriguing alternative means of creating 1D nanostructures composed of self-assembled nanoparticles in terms of material diversity, size controllability, shape regularity, and low-cost production. However, this is an area where progress has been slower. We report an unconventional yet general strategy to craft an exciting variety of 1D nanonecklace-like nanostructures comprising uniform functional nanodiscs periodically assembled along a stretched flexible polymer chain by capitalizing on judiciously designed amphiphilic worm-like diblock copolymers as nanoreactors. These nanostructures can be regarded as organic-inorganic shish-kebabs, in which nanodisc kebabs are periodically situated on a stretched polymer shish. Simulations based on self-consistent field theory reveal that the formation of organic-inorganic shish-kebabs is guided by the self-assembled elongated star-like diblock copolymer constituents constrained on the highly stretched polymer chain.