CNT/Al2O3 core-shell nanostructures by atomic layer deposition; effect of Al2O3 thickness on the electrochemical detection of dihydroxybenzene isomers

2021 ◽  
Author(s):  
Kaveh Moulaee ◽  
Muhammad Hamid Raza ◽  
Nicola Pinna ◽  
Nicola Donato ◽  
Giovanni Neri
Keyword(s):  
Carbon Nanotubes ◽  
Atomic Layer Deposition ◽  
Aluminum Oxide ◽  
Electrochemical Detection ◽  
Atomic Layer ◽  
Core Shell ◽  
Dihydroxybenzene Isomers ◽  
Shell Nanostructures ◽  
Layer Deposition ◽  
Deposition Effect

Aluminum oxide (Al2O3) layers with different thicknesses were deposited onto carbon nanotubes (CNTs) by atomic layer deposition (ALD). The as-synthesized CNT/Al2O3 core-shell nanocomposites were thoroughly characterized for their structural and...

Silver Coated Platinum Core-Shell Nanostructures on Etched Si Nanowires: Atomic Layer Deposition (ALD) Processing and Application in SERS

ChemPhysChem ◽  
2010 ◽  
pp. n/a-n/a ◽  
Author(s):  
Vladimir A. Sivakov ◽  
Katja Höflich ◽  
Michael Becker ◽  
Andreas Berger ◽  
Thomas Stelzner ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Atomic Layer ◽  
Core Shell ◽  
Si Nanowires ◽  
Shell Nanostructures ◽  
Layer Deposition

The control of thickness on aluminum oxide nanotubes by Atomic Layer Deposition using carbon nanotubes as removable templates

2015 ◽  
Vol 286 ◽  
pp. 602-609 ◽  
Author(s):  
Franklin Muñoz-Muñoz ◽  
Gerardo Soto ◽  
David Domínguez ◽  
José Romo-Herrera ◽  
Zaira Itzel Bedolla-Valdez ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Atomic Layer Deposition ◽  
Aluminum Oxide ◽  
Atomic Layer ◽  
Layer Deposition

One-Dimensional TiO2@GaON Core-Shell Nanowires with Controlled Shell Thickness from Atomic Layer Deposition for Stable and Efficient Photoelectrochemical Water Splitting

2019 ◽  
Author(s):  
Jiajia Tao ◽  
Hong-Ping Ma ◽  
Kaiping Yuan ◽  
Yang Gu ◽  
Jianwei Lian ◽  
...  
Keyword(s):  
Atomic Layer Deposition ◽  
Band Gap ◽  
Water Splitting ◽  
Atomic Layer ◽  
Photoelectrochemical Water Splitting ◽  
Core Shell ◽  
Photoelectrochemical Performance ◽  
Highly Efficient ◽  
Layer Deposition ◽  
Shell Nanowires

<div>As a promising oxygen evolution reaction semiconductor, TiO2 has been extensively investigated for solar photoelectrochemical water splitting. Here, a highly efficient and stable strategy for rationally preparing GaON cocatalysts on TiO2 by atomic layer deposition is demonstrated, which we show significantly enhances the</div><div>photoelectrochemical performance compared to TiO2-based photoanodes. For TiO2@20 nm-GaON core-shell nanowires a photocurrent density up to 1.10 mA cm-2 (1.23 V vs RHE) under AM 1.5 G irradiation (100 mW cm-2) has been achieved, which is 14 times higher than that of TiO2 NWs. Furthermore, the oxygen vacancy formation on GaON as well as the band gap matching with TiO2 not only provides more active sites for water oxidation but also enhances light absorption to promote interfacial charge separation and migration. Density functional theory studies of model systems of GaON-modified TiO2 confirm the band gap reduction, high reducibility and ability to activate water. The highly efficient and stable systems of TiO2@GaON core-shell nanowires provide a deeper understanding and universal strategy for enhancing photoelectrochemical performance of photoanodes now available. </div>

Improving the photodetection and stability of a visible-light QDs/ZnO phototransistor via an Al2O3 additional layer

2021 ◽  
Author(s):  
Sungho Park ◽  
Byung Jun Kim ◽  
Tae Yeon Kim ◽  
Eui Young Jung ◽  
Kyu-Myung Lee ◽  
...  
Keyword(s):  
Zinc Oxide ◽  
Atomic Layer Deposition ◽  
Quantum Dot ◽  
Aluminum Oxide ◽  
Thin Layer ◽  
Visible Light ◽  
Atomic Layer ◽  
Zno Films ◽  
Additional Layer ◽  
Layer Deposition

We have developed a visible-light phototransistor with excellent photodetection characteristics and stability via atomic layer deposition (ALD) to add a thin layer of aluminum oxide (Al2O3) to quantum dot (QD)/zinc oxide (ZnO) films.

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