Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film

Salih Veziroglu; Muhammad Zubair Ghori; Marius  Kamp; Lorenz Kienle; Horst-Günter Rubahn; Thomas Strunskus; Jacek Fiutowski; Jost Adam; Franz  Faupel; Oral Cenk Aktas

doi:10.1002/admi.201800465

Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film

Salih Veziroglu, Muhammad Zubair Ghori, Marius Kamp, Lorenz Kienle, Horst-Günter Rubahn, Thomas Strunskus, Jacek Fiutowski, Jost Adam, Franz Faupel , Oral Cenk Aktas

Christian-Albrechts-University of Kiel

Research output: Contribution to journal › Journal article › Research › peer-review

Abstract

Hierarchical gold (Au) structures with sharp edges garner a strong interest for nanoelectronics, nanoenergy harvesting devices, and nano‐biomedical applications due the exceptional strong electric field (hot spot) enhancement at their tips. Herein, a facile method to synthesize hierarchical Au needle clusters (HAuNCs) on highly active titanium oxide (TiO2) thin film is reported. Different from surfactant‐directed photochemical‐assisted synthesis methods, a photocatalytic deposition approach is demonstrated, which allows positioning and patterning of HAuNCs on TiO2 target without using any surfactant or stabilizer. This green synthesis approach enables to control the size and the geometry of deposited HAuNCs by simply altering the photocatalytic activity of TiO2 target, UV light intensity, and irradiation time.

Original language	English
Article number	1800465
Journal	Advanced Materials Interfaces
Volume	5
Issue number	15
Number of pages	7
ISSN	2196-7350
DOIs	https://doi.org/10.1002/admi.201800465
Publication status	Published - 2018

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10.1002/admi.201800465

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title = "Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film",

abstract = "Hierarchical gold (Au) structures with sharp edges garner a strong interest for nanoelectronics, nanoenergy harvesting devices, and nano‐biomedical applications due the exceptional strong electric field (hot spot) enhancement at their tips. Herein, a facile method to synthesize hierarchical Au needle clusters (HAuNCs) on highly active titanium oxide (TiO2) thin film is reported. Different from surfactant‐directed photochemical‐assisted synthesis methods, a photocatalytic deposition approach is demonstrated, which allows positioning and patterning of HAuNCs on TiO2 target without using any surfactant or stabilizer. This green synthesis approach enables to control the size and the geometry of deposited HAuNCs by simply altering the photocatalytic activity of TiO2 target, UV light intensity, and irradiation time.",

author = "Salih Veziroglu and Ghori, {Muhammad Zubair} and Marius Kamp and Lorenz Kienle and Horst-G{\"u}nter Rubahn and Thomas Strunskus and Jacek Fiutowski and Jost Adam and Franz Faupel and Aktas, {Oral Cenk}",

year = "2018",

doi = "10.1002/admi.201800465",

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journal = "Advanced Materials Interfaces",

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TY - JOUR

T1 - Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film

AU - Veziroglu, Salih

AU - Ghori, Muhammad Zubair

AU - Kamp, Marius

AU - Kienle, Lorenz

AU - Rubahn, Horst-Günter

AU - Strunskus, Thomas

AU - Fiutowski, Jacek

AU - Adam, Jost

AU - Faupel , Franz

AU - Aktas, Oral Cenk

PY - 2018

Y1 - 2018

N2 - Hierarchical gold (Au) structures with sharp edges garner a strong interest for nanoelectronics, nanoenergy harvesting devices, and nano‐biomedical applications due the exceptional strong electric field (hot spot) enhancement at their tips. Herein, a facile method to synthesize hierarchical Au needle clusters (HAuNCs) on highly active titanium oxide (TiO2) thin film is reported. Different from surfactant‐directed photochemical‐assisted synthesis methods, a photocatalytic deposition approach is demonstrated, which allows positioning and patterning of HAuNCs on TiO2 target without using any surfactant or stabilizer. This green synthesis approach enables to control the size and the geometry of deposited HAuNCs by simply altering the photocatalytic activity of TiO2 target, UV light intensity, and irradiation time.

AB - Hierarchical gold (Au) structures with sharp edges garner a strong interest for nanoelectronics, nanoenergy harvesting devices, and nano‐biomedical applications due the exceptional strong electric field (hot spot) enhancement at their tips. Herein, a facile method to synthesize hierarchical Au needle clusters (HAuNCs) on highly active titanium oxide (TiO2) thin film is reported. Different from surfactant‐directed photochemical‐assisted synthesis methods, a photocatalytic deposition approach is demonstrated, which allows positioning and patterning of HAuNCs on TiO2 target without using any surfactant or stabilizer. This green synthesis approach enables to control the size and the geometry of deposited HAuNCs by simply altering the photocatalytic activity of TiO2 target, UV light intensity, and irradiation time.

U2 - 10.1002/admi.201800465

DO - 10.1002/admi.201800465

M3 - Journal article

AN - SCOPUS:85051227016

SN - 2196-7350

VL - 5

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

IS - 15

M1 - 1800465

ER -

Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film

Abstract

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