Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation

doi:10.1002/adma.201703143

CORC > 化学研究所 > 中国科学院化学研究所

	Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation
	Feng, Jiangang 1,4; Song, Qian 2,4; Zhang, Bo 3; Wu, Yuchen 1; Wang, Tie 2; Jiang, Lei 1,3,4
刊名	ADVANCED MATERIALS
	2017-12-13
卷号	29 期号:46
关键词	Dewetting Dynamics Ferroelectricity Long-range-ordered Structures Micropatterning Nanocrystal Superlattices
ISSN号	0935-9648
DOI	10.1002/adma.201703143
英文摘要	Deterministic assembly of nanoparticles with programmable patterns is a core opportunity for property-by-design fabrication and large-scale integration of functional materials and devices. The wet-chemical-synthesized colloidal nanocrystals are compatible with solution assembly techniques, thus possessing advantages of high efficiency, low cost, and large scale. However, conventional solution process suffers from tradeoffs between spatial precision and long-range order of nanocrystal assembly arising from the uncontrollable dewetting dynamics and fluid flow. Here, a capillary-bridge manipulation method is demonstrated for directing the dewetting of nanocrystal inks and deterministically patterning long-range-ordered superlattice structures. This is achieved by employing micropillars with programmable size, arrangement, and shape, which permits deterministic manipulation of geometry, position, and dewetting dynamics of capillary bridges. Various superlattice structures, including one-dimensional (1D), circle, square, pentagon, hexagon, pentagram, cross arrays, are fabricated. Compared to the glassy thin films, long-range-ordered superlattice arrays exhibit improved ferroelectric polarization. Coassembly of nanocrystal superlattice and organic functional molecule is further demonstrated. Through introducing azobenzene into superlattice arrays, a switchable ferroelectric polarization is realized, which is triggered by order-disorder transition of nanocrystal stacking in reversible isomerization process of azobenzene. This method offers a platform for patterning nanocrystal superlattices and fabricating microdevices with functionalities for multiferroics, electronics, and photonics.
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000417490700006
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/45311]
专题	中国科学院化学研究所
通讯作者	Wu, Yuchen; Wang, Tie
作者单位	1.Chinese Acad Sci, Tech Inst Phys & Chem, Key Lab Bioinspired Smart Interfacial Sci, Beijing 100190, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China 3.Beihang Univ, Sch Chem, Beijing 100191, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Feng, Jiangang,Song, Qian,Zhang, Bo,et al. Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation[J]. ADVANCED MATERIALS,2017,29(46).
APA	Feng, Jiangang,Song, Qian,Zhang, Bo,Wu, Yuchen,Wang, Tie,&Jiang, Lei.(2017).Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation.ADVANCED MATERIALS,29(46).
MLA	Feng, Jiangang,et al."Large-Scale, Long-Range-Ordered Patterning of Nanocrystals via Capillary-Bridge Manipulation".ADVANCED MATERIALS 29.46(2017).