Enhanced Chemical Stability of Ag Nanowires by Slight Surface Modification with Pd

Jun Hyuk Song; Young Tae Kim; Jae Bok Seol; Chan Gyung Park; Jae Min Myoung; Unyong Jeong

doi:10.1002/admi.201800250

Enhanced Chemical Stability of Ag Nanowires by Slight Surface Modification with Pd

Jun Hyuk Song, Young Tae Kim, Jae Bok Seol, Chan Gyung Park, Jae Min Myoung, Unyong Jeong

Department of Materials Science and Engineering

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

11 Citations (Scopus)

Abstract

The chemical stability of Ag nanowires (NWs) can be addressed by introducing a layer of noble metal alloy, in particular Ag–Pd alloy, on the Ag NW surface. Due to the high cost of noble metals, it is practically important to use the least amount of noble metals as possible while achieving the chemical and electrical properties required for the electrode. To minimize the amount of Pd added to Ag NWs, the electrode performance should be correlated with the elemental distribution of Pd in the Ag NW. In this study, the amount of Pd deposited on Ag NWs is varied and the 3D elemental distribution of Pd is characterized using atom probe tomography (APT). The results indicate that chemical stability against oxidation can be achieved when the surface layer contains a very small amount of Pd (≈5 at%), thereby maintaining the good electrical and mechanical properties of the pristine Ag NW electrode. This study demonstrates the suitability of Pd-treated Ag NWs as electrodes for electro-chemiluminescence involving corrosive oxidation reactions.

Original language	English
Article number	1800250
Journal	Advanced Materials Interfaces
Volume	5
Issue number	13
DOIs	https://doi.org/10.1002/admi.201800250
Publication status	Published - 2018 Jul 9

Bibliographical note

Funding Information:
J.H.S. and Y.-T.K. contributed equally to this work. This work was supported by the Basic Science Research Program (2017R1A4A1015811) and through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (MSIT) and by the Center for Advanced Soft Electronics funded by the Ministry of Education, Science and Technology as a “Global Frontier Project” (CASE-2015M3A6A5072945).

Publisher Copyright:
© 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

Mechanics of Materials
Mechanical Engineering

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abstract = "The chemical stability of Ag nanowires (NWs) can be addressed by introducing a layer of noble metal alloy, in particular Ag–Pd alloy, on the Ag NW surface. Due to the high cost of noble metals, it is practically important to use the least amount of noble metals as possible while achieving the chemical and electrical properties required for the electrode. To minimize the amount of Pd added to Ag NWs, the electrode performance should be correlated with the elemental distribution of Pd in the Ag NW. In this study, the amount of Pd deposited on Ag NWs is varied and the 3D elemental distribution of Pd is characterized using atom probe tomography (APT). The results indicate that chemical stability against oxidation can be achieved when the surface layer contains a very small amount of Pd (≈5 at%), thereby maintaining the good electrical and mechanical properties of the pristine Ag NW electrode. This study demonstrates the suitability of Pd-treated Ag NWs as electrodes for electro-chemiluminescence involving corrosive oxidation reactions.",

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note = "Funding Information: J.H.S. and Y.-T.K. contributed equally to this work. This work was supported by the Basic Science Research Program (2017R1A4A1015811) and through the National Research Foundation of Korea (NRF) funded by the Ministry of Science, ICT (MSIT) and by the Center for Advanced Soft Electronics funded by the Ministry of Education, Science and Technology as a “Global Frontier Project” (CASE-2015M3A6A5072945). Publisher Copyright: {\textcopyright} 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim",

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AU - Myoung, Jae Min

AU - Jeong, Unyong

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PY - 2018/7/9

Y1 - 2018/7/9

N2 - The chemical stability of Ag nanowires (NWs) can be addressed by introducing a layer of noble metal alloy, in particular Ag–Pd alloy, on the Ag NW surface. Due to the high cost of noble metals, it is practically important to use the least amount of noble metals as possible while achieving the chemical and electrical properties required for the electrode. To minimize the amount of Pd added to Ag NWs, the electrode performance should be correlated with the elemental distribution of Pd in the Ag NW. In this study, the amount of Pd deposited on Ag NWs is varied and the 3D elemental distribution of Pd is characterized using atom probe tomography (APT). The results indicate that chemical stability against oxidation can be achieved when the surface layer contains a very small amount of Pd (≈5 at%), thereby maintaining the good electrical and mechanical properties of the pristine Ag NW electrode. This study demonstrates the suitability of Pd-treated Ag NWs as electrodes for electro-chemiluminescence involving corrosive oxidation reactions.

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Enhanced Chemical Stability of Ag Nanowires by Slight Surface Modification with Pd

Abstract

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