Hierarchical Ag nanostructures on Sn-doped indium oxide nano-branches: Super-hydrophobic surface for surface-enhanced Raman scattering

Kyungchan Min; Kyoung Soon Choi; Wook Jin Jeon; Dong Kyu Lee; Sein Oh; Jouhahn Lee; Jae Young Choi; Hak Ki Yu

doi:10.1039/c8ra01510d

Hierarchical Ag nanostructures on Sn-doped indium oxide nano-branches: Super-hydrophobic surface for surface-enhanced Raman scattering

Kyungchan Min
, Kyoung Soon Choi
, Wook Jin Jeon
, Dong Kyu Lee
, Sein Oh
, Jouhahn Lee
, Jae Young Choi
, Hak Ki Yu

Department of Advanced Materials Science and Engineering

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

11 Scopus citations

Abstract

Herein, we fabricated a super-hydrophobic SERS substrate using Sn-doped indium oxide (Indium-tin-oxide: ITO) nano-branches as a template. ITO nano-branches with tens of nanometer diameter are first fabricated through the vapor-liquid-solid (VLS) growth to provide roughness of the substrate. 10 nm thickness of Ag thin film was deposited and then treated with the post-annealing process to create numerous air-pockets in the Ag film, forming a hierarchical Ag nanostructures. The resulting substrate obtained Cassie's wetting property with a water contact angle of 151°. Compared to the normal hydrophobic Ag nanoparticle substrate, increase of about 4.25-fold higher SERS signal was obtained for 7 μL of rhodamine 6G aqueous solutions.

Original language	English
Pages (from-to)	12927-12932
Number of pages	6
Journal	RSC Advances
Volume	8
Issue number	23
DOIs	https://doi.org/10.1039/c8ra01510d
State	Published - 2018

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title = "Hierarchical Ag nanostructures on Sn-doped indium oxide nano-branches: Super-hydrophobic surface for surface-enhanced Raman scattering",

abstract = "Herein, we fabricated a super-hydrophobic SERS substrate using Sn-doped indium oxide (Indium-tin-oxide: ITO) nano-branches as a template. ITO nano-branches with tens of nanometer diameter are first fabricated through the vapor-liquid-solid (VLS) growth to provide roughness of the substrate. 10 nm thickness of Ag thin film was deposited and then treated with the post-annealing process to create numerous air-pockets in the Ag film, forming a hierarchical Ag nanostructures. The resulting substrate obtained Cassie's wetting property with a water contact angle of 151°. Compared to the normal hydrophobic Ag nanoparticle substrate, increase of about 4.25-fold higher SERS signal was obtained for 7 μL of rhodamine 6G aqueous solutions.",

author = "Kyungchan Min and Choi, \{Kyoung Soon\} and Jeon, \{Wook Jin\} and Lee, \{Dong Kyu\} and Sein Oh and Jouhahn Lee and Choi, \{Jae Young\} and Yu, \{Hak Ki\}",

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year = "2018",

doi = "10.1039/c8ra01510d",

language = "English",

volume = "8",

pages = "12927--12932",

journal = "RSC Advances",

issn = "2046-2069",

publisher = "Royal Society of Chemistry",

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TY - JOUR

T1 - Hierarchical Ag nanostructures on Sn-doped indium oxide nano-branches

T2 - Super-hydrophobic surface for surface-enhanced Raman scattering

AU - Min, Kyungchan

AU - Choi, Kyoung Soon

AU - Jeon, Wook Jin

AU - Lee, Dong Kyu

AU - Oh, Sein

AU - Lee, Jouhahn

AU - Choi, Jae Young

AU - Yu, Hak Ki

PY - 2018

Y1 - 2018

N2 - Herein, we fabricated a super-hydrophobic SERS substrate using Sn-doped indium oxide (Indium-tin-oxide: ITO) nano-branches as a template. ITO nano-branches with tens of nanometer diameter are first fabricated through the vapor-liquid-solid (VLS) growth to provide roughness of the substrate. 10 nm thickness of Ag thin film was deposited and then treated with the post-annealing process to create numerous air-pockets in the Ag film, forming a hierarchical Ag nanostructures. The resulting substrate obtained Cassie's wetting property with a water contact angle of 151°. Compared to the normal hydrophobic Ag nanoparticle substrate, increase of about 4.25-fold higher SERS signal was obtained for 7 μL of rhodamine 6G aqueous solutions.

AB - Herein, we fabricated a super-hydrophobic SERS substrate using Sn-doped indium oxide (Indium-tin-oxide: ITO) nano-branches as a template. ITO nano-branches with tens of nanometer diameter are first fabricated through the vapor-liquid-solid (VLS) growth to provide roughness of the substrate. 10 nm thickness of Ag thin film was deposited and then treated with the post-annealing process to create numerous air-pockets in the Ag film, forming a hierarchical Ag nanostructures. The resulting substrate obtained Cassie's wetting property with a water contact angle of 151°. Compared to the normal hydrophobic Ag nanoparticle substrate, increase of about 4.25-fold higher SERS signal was obtained for 7 μL of rhodamine 6G aqueous solutions.

UR - https://www.scopus.com/pages/publications/85045200219

U2 - 10.1039/c8ra01510d

DO - 10.1039/c8ra01510d

M3 - Article

AN - SCOPUS:85045200219

SN - 2046-2069

VL - 8

SP - 12927

EP - 12932

JO - RSC Advances

JF - RSC Advances

IS - 23

ER -

Hierarchical Ag nanostructures on Sn-doped indium oxide nano-branches: Super-hydrophobic surface for surface-enhanced Raman scattering

Abstract

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