Nanoscale goldbeating: Solid-state transformation of 0D and 1D gold nanoparticles to anisotropic 2D morphologies-Reference-Cited by-同舟云学术

Nanoscale goldbeating: Solid-state transformation of 0D and 1D gold nanoparticles to anisotropic 2D morphologies

Published:2023-08-01 Issue:8 Volume:2 Page:
ISSN:2752-6542
Container-title:PNAS Nexus
language:en
Short-container-title:

Author:

Tanjil Md Rubayat-E¹^ORCID,Gupta Tanuj²^ORCID,Gole Matthew T³^ORCID,Suero Keegan P¹^ORCID,Yin Zhewen¹^ORCID,McCleeary Donald J¹^ORCID,Douglas Ossie R T¹^ORCID,Kincanon Maegen M³^ORCID,Rudawski Nicholas G⁴^ORCID,Anderson Alissa B⁵^ORCID,Murphy Catherine J³^ORCID,Zhao Huijuan²^ORCID,Wang Michael Cai¹⁶⁷^ORCID

Affiliation:

1. Department of Mechanical Engineering, University of South Florida , Tampa, FL 33620 , USA

2. Department of Mechanical Engineering, Clemson University , Clemson, SC 29634-0921 , USA

3. Department of Chemistry, University of Illinois at Urbana-Champaign , Urbana, IL 61801 , USA

4. Herbert Wertheim College of Engineering Research Service Centers, University of Florida , Gainesville, FL 32611 , USA

5. Department of Chemistry, University of South Florida , Tampa, FL 33620 , USA

6. Department of Medical Engineering, University of South Florida , Tampa, FL 33620 , USA

7. Department of Chemical, Biological, and Materials Engineering, University of South Florida , Tampa, FL 33620 , USA

Abstract

Abstract Goldbeating is the ancient craft of thinning bulk gold (Au) into gossamer leaves. Pioneered by ancient Egyptian craftsmen, modern mechanized iterations of this technique can fabricate sheets as thin as ∼100 nm. We take inspiration from this millennia-old craft and adapt it to the nanoscale regime, using colloidally synthesized 0D/1D Au nanoparticles (AuNPs) as highly ductile and malleable nanoscopic Au ingots and subjecting them to solid-state, uniaxial compression. The applied stress induces anisotropic morphological transformation of AuNPs into 2D leaf form and elucidates insights into metal nanocrystal deformation at the extreme length scales. The induced 2D morphology is found to be dependent on the precursor 0D/1D NP morphology, size (0D nanosphere diameter and 1D nanorod diameter and length), and their on-substrate arrangement (e.g., interparticle separation and packing order) prior to compression. Overall, this versatile and generalizable solid-state compression technique enables new pathways to synthesize and investigate the anisotropic morphological transformation of arbitrary NPs and their resultant emergent phenomena.

Publisher

Oxford University Press (OUP)

Link

https://academic.oup.com/pnasnexus/advance-article-pdf/doi/10.1093/pnasnexus/pgad267/51147923/pgad267.pdf

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