Formation of asymmetric one-sided metal-tipped semiconductor nanocrystal dots and rods

Mokari, Taleb; Sztrum, Claudia G.; Salant, Asaf; Rabani, Eran; Banin, Uri

doi:10.1038/nmat1505

Cited by 526 publications

(593 citation statements)

References 44 publications

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“…A T-structure as shown in Figure 11 can be applied as a model for plasmonic waveguides, [136,137] three-way interconnects, [138] threeway connectors, [139] spin filters [140] or a transistor structure with leads. [141][142][143] Tarazona [144] introduced a free-energy density functional for a system of hard spheres. He showed that the functional was able to reproduce the thermodynamics and direct correlation function of a homogeneous fluid, and A.…”

Section: Density Functional Theory Model With Anisotropic Interactionsmentioning

confidence: 99%

Fabrication, Assembly, and Application of Patchy Particles

Pawar

Kretzschmar

2010

Macromol. Rapid Commun.

452

411

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The site‐specific engineering of colloidal surfaces has provided a powerful approach to pushing the boundaries of today's materials research. The resulting surface‐anisotropic and patchy particles have become the center of vital research areas, ranging from the need for large‐scale fabrication techniques to exploring new applications of these materials. This Review summarizes patchy particle fabrication techniques, including but not limited to particle and nanosphere lithography and glancing‐angle deposition. The variety of existing patchy particle fabrication techniques is revealed and the need for a scalable approach to high‐volume patchy particle production is identified. Ongoing modeling efforts describing patchy particle interactions and properties are reviewed as potential predictive tools. Research endeavors that deal with the directed assembly of patchy particles in electric and magnetic fields, as well as with supraparticular assembly through chemical interactions, are discussed. The Review is concluded with a note on the future application of patchy particles as phoretic motors.magnified image

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Section: Density Functional Theory Model With Anisotropic Interactionsmentioning

confidence: 99%

Fabrication, Assembly, and Application of Patchy Particles

Pawar

Kretzschmar

2010

Macromol. Rapid Commun.

452

411

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“…by stronger binding of the ligand to certain crystal facets, as discussed in greater detail and with more examples in a number of reviews Manna et al 2002;Burda et al 2005;Perez-Juste et al 2005;Yin & Alivisatos 2005;Kumar & Nann 2006;Grzelczak et al 2008;Kudera et al 2008;Tao et al 2008). Recently, composite particles with domains of different materials have also been demonstrated (Mokari et al 2004(Mokari et al , 2005Kudera et al 2005;Yu et al 2005;Pellegrino et al 2006;Zhang et al 2006), e.g. heterodimers of CdS and FePt (Gu et al 2004), Co/CdSe (Kim et al 2005c) and others (Carpenter et al 2000;Quarta et al 2007;Zanella et al 2008) that can possess e.g.…”

Section: Introductionmentioning

confidence: 99%

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles

Sperling

Parak

2010

Phil. Trans. R. Soc. A.

1,409

1,092

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Inorganic colloidal nanoparticles are very small, nanoscale objects with inorganic cores that are dispersed in a solvent. Depending on the material they consist of, nanoparticles can possess a number of different properties such as high electron density and strong optical absorption (e.g. metal particles, in particular Au), photoluminescence in the form of fluorescence (semiconductor quantum dots, e.g. CdSe or CdTe) or phosphorescence (doped oxide materials, e.g. Y 2 O 3 ), or magnetic moment (e.g. iron oxide or cobalt nanoparticles). Prerequisite for every possible application is the proper surface functionalization of such nanoparticles, which determines their interaction with the environment. These interactions ultimately affect the colloidal stability of the particles, and may yield to a controlled assembly or to the delivery of nanoparticles to a target, e.g. by appropriate functional molecules on the particle surface. This work aims to review different strategies of surface modification and functionalization of inorganic colloidal nanoparticles with a special focus on the material systems gold and semiconductor nanoparticles, such as CdSe/ZnS. However, the discussed strategies are often of general nature and apply in the same way to nanoparticles of other materials.

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“…67 Aside from the growth kinetics, the post-growth ripening process can also affect the topology of the final NHS. For example, Banin et al 68 have demonstrated that the ripening process would turn a twosided Au-tipped CdS NHS into a one-sided style upon the addition of Figure 15 Extinction cross section (in μm 2 ) as a function of wavelength for 16.5 nm_5.8 nm bare CdS nanorods (dashed black curve), 6 nm gold bare nanoparticles (red dotted curve and yellow area), a mixture of gold nanoparticles and CdS nanorods with dimensions similar to those in the hybrid (yellow plus blue area, narrow black curve), CdS_Au hybrid (thick black line), and the difference between the hybrid versus the mixture of its components (green area). For all of the spectra, the solvent is toluene.…”

Section: Rational Synthesis and Structure-property Relationships Of Nmentioning

confidence: 99%

Rational synthesis and the structure-property relationships of nanoheterostructures: a combinative study of experiments and theory

Zhou

Wang

2015

NPG Asia Mater

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Nanoheterostructures (NHSs) that combine various nanomaterials into one entity have received an extensive amount of attention in current research. The enhanced performance of the NHSs over their individual constituents have arisen from their unique electronic structure. To rationally synthesize NHSs, two issues need to be addressed. The first issue that should be explored is the mechanism by which the disparate components are integrated into the main structure. The second issue is the relationship between the NHS and its corresponding properties. In this review article, we will focus on these two issues from the perspectives of both experimental and theoretical methodologies.

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Formation of asymmetric one-sided metal-tipped semiconductor nanocrystal dots and rods

Cited by 526 publications

References 44 publications

Fabrication, Assembly, and Application of Patchy Particles

Fabrication, Assembly, and Application of Patchy Particles

Surface modification, functionalization and bioconjugation of colloidal inorganic nanoparticles

Rational synthesis and the structure-property relationships of nanoheterostructures: a combinative study of experiments and theory

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