An unexpected role of atomic oxygen dopants in Au evolution from clusters to a layer

Eunwook Jeong; Eun Ae Choi; Yoshifumi Ikoma; Seung Min Yu; Jong Seong Bae; Sang Geul Lee; Seung Zeon Han; Gun Hwan Lee; Jungheum Yun

doi:10.1016/j.actamat.2020.10.063

An unexpected role of atomic oxygen dopants in Au evolution from clusters to a layer

Eunwook Jeong, Eun Ae Choi, Yoshifumi Ikoma, Seung Min Yu, Jong Seong Bae, Sang Geul Lee, Seung Zeon Han, Gun Hwan Lee, Jungheum Yun

Advanced Materials Physics

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

Abstract

Structure engineering is essential for manipulating the chemical, electrical, and optical properties of Au. However, it is challenging to design nanoscopic structures because no effective method is available to deviate from the intrinsic evolution behavior during and after synthesis via vapor deposition. Here, we propose an approach that utilizes the oxidation-induced clustering and layering of Au due to the strong O interference at the outmost surfaces of nanoscopic Au geometries. This promotes the evolution of Au clusters and layers that are highly wetted on their oxide supports. A 4-nm-thick epitaxial Au layer eventually evolved from the proposed growth mode, simultaneously exhibiting higher optical transparency than Ag, a near-bulk resistivity of 8 × 10⁻⁸ Ω m, and extreme resilience to chemical corrosion and mechanical deformation. This result provides a definite solution to transparent metal electrodes that are highly vulnerable to degradation in ambient and working environments.

Original language	English
Pages (from-to)	277-289
Number of pages	13
Journal	Acta Materialia
Volume	202
DOIs	https://doi.org/10.1016/j.actamat.2020.10.063
Publication status	Published - Jan 1 2021

All Science Journal Classification (ASJC) codes

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

Access to Document

10.1016/j.actamat.2020.10.063

Fingerprint Dive into the research topics of 'An unexpected role of atomic oxygen dopants in Au evolution from clusters to a layer'. Together they form a unique fingerprint.

Cite this

@article{d2e5623269bf49a69f151dcf76d90877,

title = "An unexpected role of atomic oxygen dopants in Au evolution from clusters to a layer",

abstract = "Structure engineering is essential for manipulating the chemical, electrical, and optical properties of Au. However, it is challenging to design nanoscopic structures because no effective method is available to deviate from the intrinsic evolution behavior during and after synthesis via vapor deposition. Here, we propose an approach that utilizes the oxidation-induced clustering and layering of Au due to the strong O interference at the outmost surfaces of nanoscopic Au geometries. This promotes the evolution of Au clusters and layers that are highly wetted on their oxide supports. A 4-nm-thick epitaxial Au layer eventually evolved from the proposed growth mode, simultaneously exhibiting higher optical transparency than Ag, a near-bulk resistivity of 8 × 10−8 Ω m, and extreme resilience to chemical corrosion and mechanical deformation. This result provides a definite solution to transparent metal electrodes that are highly vulnerable to degradation in ambient and working environments.",

author = "Eunwook Jeong and Choi, {Eun Ae} and Yoshifumi Ikoma and Yu, {Seung Min} and Bae, {Jong Seong} and Lee, {Sang Geul} and Han, {Seung Zeon} and Lee, {Gun Hwan} and Jungheum Yun",

note = "Funding Information: This research was supported by the National Research Foundation (NRF) grant funded by the Korean government (MIST) (grant number 2020R1A2C1010185). E.C. acknowledges financial and technical supports from the National Supercomputing Center with supercomputing resources (grant number KSC-2018-CRE-0102). The authors thank Dr. Jucheol Park of the Gumi Electronics & Information Technology Research Institute for his help with the TEM and EELS measurements. J.Y. conceived the project. J.Y. and E.J. designed the research. E.J. conducted the sample preparation, optoelectrical characterization, and mechanical and chemical stability tests. G.L. supervised the project. E.C. designed DFT calculations and conducted the numerical interpretation. S.H supervised the numerical interpretation. Y.I. conducted the crystallographic characterization. S.Y., J.B., and S.L. conducted the UHR FE-SEM, XPS, and XRD analyses, respectively. J.Y. wrote the manuscript. ",

year = "2021",

month = jan,

day = "1",

doi = "10.1016/j.actamat.2020.10.063",

language = "English",

volume = "202",

pages = "277--289",

journal = "Acta Materialia",

issn = "1359-6454",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - An unexpected role of atomic oxygen dopants in Au evolution from clusters to a layer

AU - Jeong, Eunwook

AU - Choi, Eun Ae

AU - Ikoma, Yoshifumi

AU - Yu, Seung Min

AU - Bae, Jong Seong

AU - Lee, Sang Geul

AU - Han, Seung Zeon

AU - Lee, Gun Hwan

AU - Yun, Jungheum

N1 - Funding Information: This research was supported by the National Research Foundation (NRF) grant funded by the Korean government (MIST) (grant number 2020R1A2C1010185). E.C. acknowledges financial and technical supports from the National Supercomputing Center with supercomputing resources (grant number KSC-2018-CRE-0102). The authors thank Dr. Jucheol Park of the Gumi Electronics & Information Technology Research Institute for his help with the TEM and EELS measurements. J.Y. conceived the project. J.Y. and E.J. designed the research. E.J. conducted the sample preparation, optoelectrical characterization, and mechanical and chemical stability tests. G.L. supervised the project. E.C. designed DFT calculations and conducted the numerical interpretation. S.H supervised the numerical interpretation. Y.I. conducted the crystallographic characterization. S.Y., J.B., and S.L. conducted the UHR FE-SEM, XPS, and XRD analyses, respectively. J.Y. wrote the manuscript.

PY - 2021/1/1

Y1 - 2021/1/1

N2 - Structure engineering is essential for manipulating the chemical, electrical, and optical properties of Au. However, it is challenging to design nanoscopic structures because no effective method is available to deviate from the intrinsic evolution behavior during and after synthesis via vapor deposition. Here, we propose an approach that utilizes the oxidation-induced clustering and layering of Au due to the strong O interference at the outmost surfaces of nanoscopic Au geometries. This promotes the evolution of Au clusters and layers that are highly wetted on their oxide supports. A 4-nm-thick epitaxial Au layer eventually evolved from the proposed growth mode, simultaneously exhibiting higher optical transparency than Ag, a near-bulk resistivity of 8 × 10−8 Ω m, and extreme resilience to chemical corrosion and mechanical deformation. This result provides a definite solution to transparent metal electrodes that are highly vulnerable to degradation in ambient and working environments.

AB - Structure engineering is essential for manipulating the chemical, electrical, and optical properties of Au. However, it is challenging to design nanoscopic structures because no effective method is available to deviate from the intrinsic evolution behavior during and after synthesis via vapor deposition. Here, we propose an approach that utilizes the oxidation-induced clustering and layering of Au due to the strong O interference at the outmost surfaces of nanoscopic Au geometries. This promotes the evolution of Au clusters and layers that are highly wetted on their oxide supports. A 4-nm-thick epitaxial Au layer eventually evolved from the proposed growth mode, simultaneously exhibiting higher optical transparency than Ag, a near-bulk resistivity of 8 × 10−8 Ω m, and extreme resilience to chemical corrosion and mechanical deformation. This result provides a definite solution to transparent metal electrodes that are highly vulnerable to degradation in ambient and working environments.

UR - http://www.scopus.com/inward/record.url?scp=85096199966&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85096199966&partnerID=8YFLogxK

U2 - 10.1016/j.actamat.2020.10.063

DO - 10.1016/j.actamat.2020.10.063

M3 - Article

AN - SCOPUS:85096199966

VL - 202

SP - 277

EP - 289

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

ER -