Structural Analysis of Self-Assembling Nanocrystal Superlattices

Wang, Zhong Lin

doi:10.1002/(sici)1521-4095(199801)10:1<13::aid-adma13>3.0.co;2-w

Cited by 437 publications

(89 citation statements)

References 56 publications

(89 reference statements)

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“…Much progress has been made in this field, and only a few examples of assembled nanoparticles and the change of their properties as a function of the particle size and shape and the interparticle distances can be given here. For more complete reviews the reader is referred to other references (5,24,28).…”

Section: Assembly Of Metal Nanoparticles and Their Collective Propertiesmentioning

confidence: 99%

“…The overall properties of the new material are determined by the properties of the individual particles as a function of their size and shape as well as their collective behavior. The latter is controlled by the interparticle separations, which can be changed by the size of the stabilizing ligands (capping material) protecting the particles against aggregation (28). Both parameters can now be manipulated by chemists in an ever-increasing degree, opening the possibilities for a bottoms-up approach toward the fabrication of new materials (24)(25)(26)(27)(28).…”

Section: Introductionmentioning

confidence: 99%

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Optical Properties and Ultrafast Dynamics of Metallic Nanocrystals

Link¹,

El‐Sayed

2003

Annu. Rev. Phys. Chem.

1,531

1,499

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Noble metal particles have long fascinated scientists because of their intense color, which led to their application in stained glass windows as early as the Middle Ages. The recent resurrection of colloidal and cluster chemistry has brought about the strive for new materials that allow a bottoms-up approach of building improved and new devices with nanoparticles or artificial atoms. In this review, we discuss some of the properties of individual and some assembled metallic nanoparticles with a focus on their interaction with cw and pulsed laser light of different energies. The potential application of the plasmon resonance as sensors is discussed.

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Section: Assembly Of Metal Nanoparticles and Their Collective Propertiesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Optical Properties and Ultrafast Dynamics of Metallic Nanocrystals

Link¹,

El‐Sayed

2003

Annu. Rev. Phys. Chem.

1,531

1,499

View full text Add to dashboard Cite

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“…Self-assembled arrays involve self-organization into monolayers, thin films, and superlattices of size-selected nanocrystals encapsulated in a protective compact organic coating [4]. Nanocrystals are the hard cores that preserve the ordering at the atomic scale; the organic molecules adsorbed on their surfaces serve as the interparticle molecular bonds and as protection for the particles in order to avoid direct core contact with a consequence of coalescing.…”

Section: Ordered Self-assembly Of Nanocrystalsmentioning

confidence: 99%

“…icosahedral and decahedral) Ag nanocrystals form hcp superlattices [11]. Defect structures present in NCSs, including: twins, slip planes, multiply-twins and dislocations, have been studied in detail [4,12].…”

Section: Photonic Crystals For Optically-active Devices and Circuitsmentioning

confidence: 99%

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Self-assembly of shape-controlled nanocrystals and their in-situ thermodynamic properties

Wang

Yin

2000

Materials Science and Engineering: A

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Size and shape selected nanocrystals behave like molecular matter that can be used as fundamental building blocks for constructing nanocrystal assembled superlattices. The nanocrystals form a new class of materials that have orders in both atomic and nanocrystal length-scales. The nanocrystals are passivated with organic molecules (called thiolates) that not only protect them from coalescence but act as the molecular bonds for forming the superlattice structure. The interparticle distance is adjustable, possibly resulting in tunable electric, optical and transport properties. This paper reviews our current progress in nanocrystal self-assembled materials and their thermodynamic properties probed by in-situ transmission electron microscopy (TEM). The studies mainly focused on size and shape-controlled nanocrystals to understand the role played by particle shape in determining their physical and chemical properties. Recent studies on photonic crystals and mesoporous materials such as silica and titania are also presented.

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