In Situ Observations of Freestanding Single-Atom-Thick Gold Nanoribbons Suspended in Graphene

Liang Zhao; Huy Q. Ta; Rafael G. Mendes; Alicja Bachmatiuk; Mark H. Rummeli

doi:10.1002/admi.202000436

In Situ Observations of Freestanding Single-Atom-Thick Gold Nanoribbons Suspended in Graphene

Liang Zhao, Huy Q. Ta, Rafael G. Mendes, Alicja Bachmatiuk, Mark H. Rummeli

Research output: Contribution to journal › Article › Academic › peer-review

Abstract

Bulk gold's attributes of relative chemical inertness, rarity, relatively low melting point and its beautiful sheen make it a prized material for humans. Recordings suggest it was the first metal employed by humans dating as far back to the late Paleolithic period ≈40 000 BC. However, at the nanoscale gold is expected to present new and exciting properties, not least in catalysis. Moreover, recent studies suggest a new family of single-atom-thick two-dimensional (2D) metals exist. This work shows single-atom-thick freestanding gold membranes and nanoribbons can form as suspended structures in graphene pores. Electron irradiation is shown to lead to changes to the graphene pores which lead to dynamic changes of the gold membranes which transition to a nanoribbon. The freestanding single-atom-thick 2D gold structures are relatively stable to electron irradiation for extended periods. The work should advance the development of 2D gold monolayers significantly.

Original language	English
Article number	2000436
Number of pages	7
Journal	Advanced Materials Interfaces
Volume	7
Issue number	12
DOIs	https://doi.org/10.1002/admi.202000436
Publication status	Published - 23 Jun 2020

Keywords

electron beam irradiation
gold nanoribbons
in situ TEM
single-atom-thick

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title = "In Situ Observations of Freestanding Single-Atom-Thick Gold Nanoribbons Suspended in Graphene",

abstract = "Bulk gold's attributes of relative chemical inertness, rarity, relatively low melting point and its beautiful sheen make it a prized material for humans. Recordings suggest it was the first metal employed by humans dating as far back to the late Paleolithic period ≈40 000 BC. However, at the nanoscale gold is expected to present new and exciting properties, not least in catalysis. Moreover, recent studies suggest a new family of single-atom-thick two-dimensional (2D) metals exist. This work shows single-atom-thick freestanding gold membranes and nanoribbons can form as suspended structures in graphene pores. Electron irradiation is shown to lead to changes to the graphene pores which lead to dynamic changes of the gold membranes which transition to a nanoribbon. The freestanding single-atom-thick 2D gold structures are relatively stable to electron irradiation for extended periods. The work should advance the development of 2D gold monolayers significantly.",

keywords = "electron beam irradiation, gold nanoribbons, in situ TEM, single-atom-thick",

author = "Liang Zhao and Ta, {Huy Q.} and Mendes, {Rafael G.} and Alicja Bachmatiuk and Rummeli, {Mark H.}",

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AU - Zhao, Liang

AU - Ta, Huy Q.

AU - Mendes, Rafael G.

AU - Bachmatiuk, Alicja

AU - Rummeli, Mark H.

PY - 2020/6/23

Y1 - 2020/6/23

N2 - Bulk gold's attributes of relative chemical inertness, rarity, relatively low melting point and its beautiful sheen make it a prized material for humans. Recordings suggest it was the first metal employed by humans dating as far back to the late Paleolithic period ≈40 000 BC. However, at the nanoscale gold is expected to present new and exciting properties, not least in catalysis. Moreover, recent studies suggest a new family of single-atom-thick two-dimensional (2D) metals exist. This work shows single-atom-thick freestanding gold membranes and nanoribbons can form as suspended structures in graphene pores. Electron irradiation is shown to lead to changes to the graphene pores which lead to dynamic changes of the gold membranes which transition to a nanoribbon. The freestanding single-atom-thick 2D gold structures are relatively stable to electron irradiation for extended periods. The work should advance the development of 2D gold monolayers significantly.

AB - Bulk gold's attributes of relative chemical inertness, rarity, relatively low melting point and its beautiful sheen make it a prized material for humans. Recordings suggest it was the first metal employed by humans dating as far back to the late Paleolithic period ≈40 000 BC. However, at the nanoscale gold is expected to present new and exciting properties, not least in catalysis. Moreover, recent studies suggest a new family of single-atom-thick two-dimensional (2D) metals exist. This work shows single-atom-thick freestanding gold membranes and nanoribbons can form as suspended structures in graphene pores. Electron irradiation is shown to lead to changes to the graphene pores which lead to dynamic changes of the gold membranes which transition to a nanoribbon. The freestanding single-atom-thick 2D gold structures are relatively stable to electron irradiation for extended periods. The work should advance the development of 2D gold monolayers significantly.

KW - electron beam irradiation

KW - gold nanoribbons

KW - in situ TEM

KW - single-atom-thick

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ER -

In Situ Observations of Freestanding Single-Atom-Thick Gold Nanoribbons Suspended in Graphene

Abstract

Keywords

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