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Title: Superfast assembly and synthesis of gold nanostructures using nanosecond low-temperature compression via magnetic pulsed power

Journal Article · · Nature Communications
 [1];  [1];  [1];  [1];  [1];  [1];  [1];  [1];  [2];  [3]
  1. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
  2. Cornell Univ., Ithaca, NY (United States)
  3. Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Univ. of New Mexico, Albuquerque, NM (United States)
+ Show Author Affiliations

Gold nanostructured materials exhibit important size- and shape-dependent properties that enable a wide variety of applications in photocatalysis, nanoelectronics and phototherapy. Here we show the use of superfast dynamic compression to synthesize extended gold nanostructures, such as nanorods, nanowires and nanosheets, with nanosecond coalescence times. Using a pulsed power generator, we ramp compress spherical gold nanoparticle arrays to pressures of tens of GPa, demonstrating pressure-driven assembly beyond the quasi-static regime of the diamond anvil cell. Our dynamic magnetic ramp compression approach produces smooth, shockless (that is, isentropic) one-dimensional loading with low-temperature states suitable for nanostructure synthesis. Transmission electron microscopy clearly establishes that various gold architectures are formed through compressive mesoscale coalescences of spherical gold nanoparticles, which is further confirmed by in-situ synchrotron X-ray studies and large-scale simulation. As a result, this nanofabrication approach applies magnetically driven uniaxial ramp compression to mimic established embossing and imprinting processes, but at ultra-short (nanosecond) timescales.

Research Organization:
Sandia National Laboratories (SNL-NM), Albuquerque, NM (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
Grant/Contract Number:
AC04-94AL85000
OSTI ID:
1374749
Report Number(s):
SAND--2017-8083J; ncomms14778
Journal Information:
Nature Communications, Journal Name: Nature Communications Vol. 8; ISSN 2041-1723
Publisher:
Nature Publishing GroupCopyright Statement
Country of Publication:
United States
Language:
English

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Cited By (12)

Oriented Gold Nanorod Arrays: Self-Assembly and Optoelectronic Applications journal June 2019
Bandgap engineering in two-dimensional halide perovskite Cs 3 Sb 2 I 9 nanocrystals under pressure journal January 2020
Hierarchical self-assembly of 3D lattices from polydisperse anisometric colloids journal April 2019
Gold clay from self-assembly of 2D microscale nanosheets journal January 2020
Pressure Induced Nanoparticle Phase Behavior, Property, and Applications journal April 2019
Gold clay from self-assembly of 2D microscale nanosheets journal January 2020
Ordered mesoporous silver superstructures with SERS hot spots journal January 2019
Oriented Gold Nanorod Arrays: Self‐Assembly and Optoelectronic Applications journal June 2019
Orthorhombic distortion in Au nanoparticles induced by high pressure journal January 2019
Enhancing cylindrical compression by reducing plasma ablation in pulsed-power drivers journal April 2019
Directing Gold Nanoparticles into Free‐Standing Honeycomb‐Like Ordered Mesoporous Superstructures journal May 2019
Pressure-induced structural transition and band gap evolution of double perovskite Cs 2 AgBiBr 6 nanocrystals journal January 2019

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