Yuanwei Li

All Publications

• Nonlinear optical colloidal metacrystals NATURE PHOTONICS Zhang, Y., Xu, D. D., Tanriover, I., Zhou, W., Li, Y., Lopez-Arteaga, R., Aydin, K., Mirkin, C. A. 2024

  View details for DOI 10.1038/s41566-024-01558-0

  View details for Web of Science ID 001345358700001

• Unveiling Spatial and Temporal Dynamics of Plasmon-Enhanced Localized Fields in Metallic Nanoframes through Ultrafast Electron Microscopy. ACS nano Tanriover, I., Li, Y., Gage, T. E., Arslan, I., Liu, H., Mirkin, C. A., Aydin, K. 2024

  Abstract

  Plasmonic nanomaterials, particularly noble metal nanoframes (NFs), are important for applications such as catalysis, biosensing, and energy harvesting due to their ability to enhance localized electric fields and atomic efficiency via localized surface plasmon resonance (LSPR). Yet the fundamental structure-function relationships and plasmonic dynamics of the NFS are difficult to study experimentally and thus far rely predominately on computational methodologies, limiting their utilization. This study leverages the capabilities of ultrafast electron microscopy (UEM), specifically photon-induced near-field electron microscopy (PINEM), to probe the light-matter interactions within plasmonic NF structures. The effects of shape, size, and plasmonic coupling of Pt@Au core-shell NFs on spatial and temporal characteristics of plasmon-enhanced localized electric fields are explored. Importantly, time-resolved PINEM analysis reveals that the plasmonic fields around hexagonal NF prisms exhibit a spatially dependent excitation and decay rate, indicating a nuanced interplay between the spatial geometry of the NF and the temporal evolution of the localized electric field. These results and observations uncover nanophotonic energy transfer dynamics in NFs and highlight their potential for applications in biosensing and photocatalysis.

  View details for DOI 10.1021/acsnano.4c08875

  View details for PubMedID 39351793

• Engineering Anisotropy into Organized Nanoscale Matter. Chemical reviews Zhou, W., Li, Y., Partridge, B. E., Mirkin, C. A. 2024

  Abstract

  Programming the organization of discrete building blocks into periodic and quasi-periodic arrays is challenging. Methods for organizing materials are particularly important at the nanoscale, where the time required for organization processes is practically manageable in experiments, and the resulting structures are of interest for applications spanning catalysis, optics, and plasmonics. While the assembly of isotropic nanoscale objects has been extensively studied and described by empirical design rules, recent synthetic advances have allowed anisotropy to be programmed into macroscopic assemblies made from nanoscale building blocks, opening new opportunities to engineer periodic materials and even quasicrystals with unnatural properties. In this review, we define guidelines for leveraging anisotropy of individual building blocks to direct the organization of nanoscale matter. First, the nature and spatial distribution of local interactions are considered and three design rules that guide particle organization are derived. Subsequently, recent examples from the literature are examined in the context of these design rules. Within the discussion of each rule, we delineate the examples according to the dimensionality (0D-3D) of the building blocks. Finally, we use geometric considerations to propose a general inverse design-based construction strategy that will enable the engineering of colloidal crystals with unprecedented structural control.

  View details for DOI 10.1021/acs.chemrev.4c00299

  View details for PubMedID 39315621

• DNA-mediated assembly of Au bipyramids into anisotropic light emitting kagome superlattices. Science advances Li, Z., Lim, Y., Tanriover, I., Zhou, W., Li, Y., Zhang, Y., Aydin, K., Glotzer, S. C., Mirkin, C. A. 2024; 10 (29): eadp3756

  Abstract

  Colloidal crystal engineering with DNA allows one to design diverse superlattices with tunable lattice symmetry, composition, and spacing. Most of these structures follow the complementary contact model, maximizing DNA hybridization on building blocks and producing relatively close-packed lattices. Here, low-symmetry kagome superlattices are assembled from DNA-modified gold bipyramids that can engage only in partial DNA surface matching. The bipyramid dimensions and DNA length can be engineered for two different superlattices with rhombohedral unit cells, including one composed of a periodic stacking of kagome lattices. Enabled by the partial facet alignment, the kagome lattices exhibit lattice distortion, bipyramid twisting, and planar chirality. When conjugated with Cy-5 dyes, the kagome lattices serve as cavities with high-density optical states and large Purcell factors along lateral directions, leading to strong dipole radiation along the z axis and facet-dependent light emission. Such complex optical properties make these materials attractive for lasers, displays, and quantum sensing constructs.

  View details for DOI 10.1126/sciadv.adp3756

  View details for PubMedID 39028823

• Space-tiled colloidal crystals from DNA-forced shape-complementary polyhedra pairing. Science (New York, N.Y.) Zhou, W., Li, Y., Je, K., Vo, T., Lin, H., Partridge, B. E., Huang, Z., Glotzer, S. C., Mirkin, C. A. 2024; 383 (6680): 312-319

  Abstract

  Generating space-filling arrangements of most discrete polyhedra nanostructures of the same shape is not possible. However, if the appropriate individual building blocks are selected (e.g., cubes), or multiple shapes of the appropriate dimensions are matched (e.g., octahedra and tetrahedra) and their pairing interactions are subsequently forced, space-filled architectures may be possible. With flexible molecular ligands (polyethylene glycol-modified DNA), the shape of a polyhedral nanoparticle can be deliberately altered and used to realize geometries that favor space tessellation. In this work, 10 new colloidal crystals were synthesized from DNA-modified nanocrystal building blocks that differed in shapes and sizes, designed to form space-filling architectures with micron-scale dimensions. The insights and capabilities provided by this new strategy substantially expand the scope of colloidal crystals possible and provide an expanded tool kit for researchers interested in designing metamaterials.

  View details for DOI 10.1126/science.adj1021

  View details for PubMedID 38236974

• Colloidal quasicrystals engineered with DNA. Nature materials Zhou, W., Lim, Y., Lin, H., Lee, S., Li, Y., Huang, Z., Du, J. S., Lee, B., Wang, S., Sanchez-Iglesias, A., Grzelczak, M., Liz-Marzan, L. M., Glotzer, S. C., Mirkin, C. A. 2023

  Abstract

  In principle, designing and synthesizing almost any class of colloidal crystal is possible. Nonetheless, the deliberate and rational formation of colloidal quasicrystals has been difficult to achieve. Here we describe the assembly of colloidal quasicrystals by exploiting the geometry of nanoscale decahedra and the programmable bonding characteristics of DNA immobilized on their facets. This process is enthalpy-driven, works over a range of particle sizes and DNA lengths, and is made possible by the energetic preference of the system to maximize DNA duplex formation and favour facet alignment, generating local five- and six-coordinated motifs. This class of axial structures is defined by a square-triangle tiling with rhombus defects and successive on-average quasiperiodic layers exhibiting stacking disorder which provides the entropy necessary for thermodynamic stability. Taken together, these results establish an engineering milestone in the deliberate design of programmable matter.

  View details for DOI 10.1038/s41563-023-01706-x

  View details for PubMedID 37919350

• Ultrastrong colloidal crystal metamaterials engineered with DNA. Science advances Li, Y., Jin, H., Zhou, W., Wang, Z., Lin, Z., Mirkin, C. A., Espinosa, H. D. 2023; 9 (39): eadj8103

  Abstract

  Lattice-based constructs, often made by additive manufacturing, are attractive for many applications. Typically, such constructs are made from microscale or larger elements; however, smaller nanoscale components can lead to more unusual properties, including greater strength, lighter weight, and unprecedented resiliencies. Here, solid and hollow nanoparticles (nanoframes and nanocages; frame size: ~15 nanometers) were assembled into colloidal crystals using DNA, and their mechanical strengths were studied. Nanosolid, nanocage, and nanoframe lattices with identical crystal symmetries exhibit markedly different specific stiffnesses and strengths. Unexpectedly, the nanoframe lattice is approximately six times stronger than the nanosolid lattice. Nanomechanical experiments, electron microscopy, and finite element analysis show that this property results from the buckling, densification, and size-dependent strain hardening of nanoframe lattices. Last, these unusual open architectures show that lattices with structural elements as small as 15 nanometers can retain a high degree of strength, and as such, they represent target components for making and exploring a variety of miniaturized devices.

  View details for DOI 10.1126/sciadv.adj8103

  View details for PubMedID 37774024

  View details for PubMedCentralID PMC10541499

• Dynamic Metal-Phenolic Coordination Complexes for Versatile Surface Nanopatterning. Journal of the American Chemical Society Chen, C., Lin, M., Wahl, C., Li, Y., Zhou, W., Wang, Z., Zhang, Y., Mirkin, C. A. 2023; 145 (14): 7974-7982

  Abstract

  We report a general nanopatterning strategy that takes advantage of the dynamic coordination bonds between polyphenols and metal ions (e.g., Fe3+ and Cu2+) to create structures on surfaces with a range of properties. With this methodology, under acidic conditions, 29 metal-phenolic complex-based precursors composed of different polyphenols and metal ions are patterned using scanning probe and large-area cantilever free nanolithography techniques, resulting in a library of deposited metal-phenolic nanopatterns. Significantly, post-treatment of the patterns under basic conditions (i.e., ammonia vapor) triggers a change in coordination state and results in the in situ generation of more stable networks firmly attached to the underlying substrates. The methodology provides control over feature size, shape, and composition, almost regardless of substrate (e.g., Si, Au, and silicon nitride). Under reducing conditions (i.e., H2) at elevated temperatures (180-600 °C), the patterned features have been used as nanoreactors to synthesize individual metal nanoparticles. At room temperature, the ammonia-treated features can reduce Ag+ to form metal nanostructures and be modified with peptides, proteins, and thiolated DNA via Michael addition and/or Schiff base reaction. The generality of this technique should make it useful for a wide variety of researchers interested in modifying surfaces for catalytic, chemical and biological sensing, and template-directed assembly purposes.

  View details for DOI 10.1021/jacs.2c13515

  View details for PubMedID 36975188

• Open-channel metal particle superlattices. Nature Li, Y., Zhou, W., Tanriover, I., Hadibrata, W., Partridge, B. E., Lin, H., Hu, X., Lee, B., Liu, J., Dravid, V. P., Aydin, K., Mirkin, C. A. 2022; 611 (7937): 695-701

  Abstract

  Although tremendous advances have been made in preparing porous crystals from molecular precursors1,2, there are no general ways of designing and making topologically diversified porous colloidal crystals over the 10-1,000 nm length scale. Control over porosity in this size range would enable the tailoring of molecular absorption and storage, separation, chemical sensing, catalytic and optical properties of such materials. Here, a universal approach for synthesizing metallic open-channel superlattices with pores of 10 to 1,000 nm from DNA-modified hollow colloidal nanoparticles (NPs) is reported. By tuning hollow NP geometry and DNA design, one can adjust crystal pore geometry (pore size and shape) and channel topology (the way in which pores are interconnected). The assembly of hollow NPs is driven by edge-to-edge rather than face-to-face DNA-DNA interactions. Two new design rules describing this assembly regime emerge from these studies and are then used to synthesize 12 open-channel superlattices with control over crystal symmetry, channel geometry and topology. The open channels can be selectively occupied by guests of the appropriate size and that are modified with complementary DNA (for example, Au NPs).

  View details for DOI 10.1038/s41586-022-05291-y

  View details for PubMedID 36289344

  View details for PubMedCentralID 7145355

• Monolayer Plasmonic Nanoframes as Large-Area, Broadband Metasurface Absorbers. Small (Weinheim an der Bergstrasse, Germany) Li, Y., Tanriover, I., Zhou, W., Hadibrata, W., Dereshgi, S. A., Samanta, D., Aydin, K., Mirkin, C. A. 2022; 18 (33): e2201171

  Abstract

  Broadband absorbers are useful ultraviolet protection, energy harvesting, sensing, and thermal imaging. The thinner these structures are, the more device-relevant they become. However, it is difficult to synthesize ultrathin absorbers in a scalable and straightforward manner. A general and straightforward synthetic strategy for preparing ultrathin, broadband metasurface absorbers that do not rely on cumbersome lithographic steps is reported. These materials are prepared through the surface-assembly of plasmonic octahedral nanoframes (NFs) into large-area ordered monolayers via drop-casting with subsequent air-drying at room temperature. This strategy is used to produce three types of ultrathin broadband absorbers with thicknesses of ≈200 nm and different lattice symmetries (loose hexagonal, twisted hexagonal, dense hexagonal), all of which exhibit efficient light absorption (≈90%) across wavelengths ranging from 400-800 nm. Their broadband absorption is attributed to the hollow morphologies of the NFs, the incorporation of a high-loss material (i.e., Pt), and the strong field enhancement resulting from surface assembly. The broadband absorption is found to be polarization-independent and maintained for a wide range of incidence angles (±45°). The ability to design and fabricate broadband metasurface absorbers using this high-throughput surface-based assembly strategy is a significant step toward the large-scale, rapid manufacturing of nanophotonic structures and devices.

  View details for DOI 10.1002/smll.202201171

  View details for PubMedID 35859524

• Corner-, edge-, and facet-controlled growth of nanocrystals. Science advances Li, Y., Lin, H., Zhou, W., Sun, L., Samanta, D., Mirkin, C. A. 2021; 7 (3)

  Abstract

  The ability to precisely control nanocrystal (NC) shape and composition is useful in many fields, including catalysis and plasmonics. Seed-mediated strategies have proven effective for preparing a wide variety of structures, but a poor understanding of how to selectively grow corners, edges, and facets has limited the development of a general strategy to control structure evolution. Here, we report a universal synthetic strategy for directing the site-specific growth of anisotropic seeds to prepare a library of designer nanostructures. This strategy leverages nucleation energy barrier profiles and the chemical potential of the growth solution to control the site-specific growth of NCs into exotic shapes and compositions. This strategy can be used to not only control where growth occurs on anisotropic seeds but also control the exposed facets of the newly grown regions. NCs of many shapes are synthesized, including over 10 here-to-fore never reported NCs and, in principle, many others are possible.

  View details for DOI 10.1126/sciadv.abf1410

  View details for PubMedID 33523912

  View details for PubMedCentralID PMC7810373

• Position- and Orientation-Controlled Growth of Wulff-Shaped Colloidal Crystals Engineered with DNA. Advanced materials (Deerfield Beach, Fla.) Sun, L., Lin, H., Li, Y., Zhou, W., Du, J. S., Mirkin, C. A. 2020; 32 (47): e2005316

  Abstract

  Colloidal crystals have emerged as promising candidates for building optical microdevices. Techniques now exist for synthesizing them with control over their nanoscale features (e.g., particle compositions, sizes, shapes, and lattice parameters and symmetry); however, the ability to tune macroscale structural features, such as the relative positions of crystals to one another and lattice orientations, has yet to be realized. Here, inspiration is drawn from epitaxial growth strategies in atomic crystallization, and patterned substrates are prepared that, when used in conjunction with DNA-mediated nanoparticle crystallization, allow for control over individual Wulff-shaped crystal growth, location, and orientation. In addition, the approach allows exquisite control over the patterned substrate/crystal lattice mismatch, something not yet realized for any epitaxy process. This level of structural control is a significant step toward realizing complex, integrated devices with colloidal crystal components, and this approach provides a model system for further exploration in epitaxy systems.

  View details for DOI 10.1002/adma.202005316

  View details for PubMedID 33089533

• Constructing conductive multi-walled carbon nanotubes network inside hexagonal boron nitride network in polymer composites for significantly improved dielectric property and thermal conductivity COMPOSITES SCIENCE AND TECHNOLOGY Wu, K., Li, Y., Huang, R., Chai, S., Chen, F., Fu, Q. 2017; 151: 193-201

  View details for DOI 10.1016/j.compscitech.2017.07.014

  View details for Web of Science ID 000413796100024