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

Research output: Contribution to journalJournal articleResearchpeer-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 languageEnglish
Article number1800465
JournalAdvanced Materials Interfaces
Volume5
Issue number15
Number of pages7
ISSN2196-7350
DOIs
Publication statusPublished - 2018

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Needles
Thin films
Stabilizers (agents)
Nanoelectronics
Titanium oxides
Ultraviolet radiation
Oxide films
Surface active agents
Gold
Electric fields
Irradiation
Geometry

Cite this

Veziroglu, S., Ghori, M. Z., Kamp, M., Kienle, L., Rubahn, H-G., Strunskus, T., ... Aktas, O. C. (2018). Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film. Advanced Materials Interfaces, 5(15), [1800465]. https://doi.org/10.1002/admi.201800465
Veziroglu, Salih ; Ghori, Muhammad Zubair ; Kamp, Marius ; Kienle, Lorenz ; Rubahn, Horst-Günter ; Strunskus, Thomas ; Fiutowski, Jacek ; Adam, Jost ; Faupel , Franz ; Aktas, Oral Cenk. / Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film. In: Advanced Materials Interfaces. 2018 ; Vol. 5, No. 15.
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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}",
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Photocatalytic growth of hierarchical au needle clusters on highly active TiO2 thin film. / Veziroglu, Salih; Ghori, Muhammad Zubair; Kamp, Marius ; Kienle, Lorenz; Rubahn, Horst-Günter; Strunskus, Thomas; Fiutowski, Jacek; Adam, Jost; Faupel , Franz ; Aktas, Oral Cenk.

In: Advanced Materials Interfaces, Vol. 5, No. 15, 1800465, 2018.

Research output: Contribution to journalJournal articleResearchpeer-review

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

VL - 5

JO - Advanced Materials Interfaces

JF - Advanced Materials Interfaces

SN - 2196-7350

IS - 15

M1 - 1800465

ER -