Gold Nanoisland Agglomeration upon the Substrate Assisted Chemical Etching Based on Thermal Annealing Process

In this study, we proposed the self-organization process and its localized surface plasmon resonance property (LSPR) to study the effect of chemically treated quartz glass substrates for gold nanoisland array formation. Firstly, we etched a quartz glass substrate using a sputter etching machine. Secondly, n-butanol was treated on the surface of the substrate. Then, we deposited a gold thin film on the substrate with assisted chemical etching. Finally, the self-organization method examined the thermal annealing of gold nanoisland arrays on a substrate. The results showed that the gold nanoisland that was aggregated on an etched quartz glass substrate was large and sparse, while the gold nanoisland aggregated on a chemically treated substrate was small and dense. Further, it was revealed that a substrate’s surface energy reduced chemical treating and increased the gold nanoisland contact angle on the substrate via the thermal annealing process. It was also confirmed that chemical treatment was useful to control the morphology of gold nanoisland arrays on a substrate, particularly when related to tuning their optical property.

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Formation of copper oxide nanowires on glass substrate through thermal annealing process

2015 2nd International Conference on Biomedical Engineering (ICoBE) ◽

10.1109/icobe.2015.7235908 ◽

2015 ◽

Author(s):

U. Hashim ◽

M. Safwan Azmi ◽

Sh. Nadzirah

Keyword(s):

Copper Oxide ◽

Thermal Annealing ◽

Glass Substrate ◽

Annealing Process ◽

Oxide Nanowires ◽

Thermal Annealing Process

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Solid Phase Growth of some Metal and Metal Oxide Thin Films on Sapphire and Quartz Glass Substrates

Materials Science Forum ◽

10.4028/www.scientific.net/msf.753.505 ◽

2013 ◽

Vol 753 ◽

pp. 505-509

Author(s):

Yuichi Sato ◽

Toshifumi Suzuki ◽

Hiroyuki Mogami ◽

Fumito Otake ◽

Hirotoshi Hatori ◽

...

Keyword(s):

Thin Films ◽

Quartz Glass ◽

Glass Substrate ◽

Solid Phase ◽

Quartz Glass Substrate ◽

Heteroepitaxial Growth ◽

Phase Growth ◽

Single Crystalline ◽

Glass Substrates ◽

Amorphous Quartz

Solid phase growth of thin films of copper (Cu), aluminum (Al) and zinc oxide (ZnO) on single crystalline sapphire and quartz glass substrates were tried by heat-treatments and their crystallization conditions were investigated. ZnO thin films relatively easily recrystallized even when they were deposited on the amorphous quartz glass substrate. On the other hand, Cu and Al thin films hardly recrystallized when they were deposited on the quartz glass substrate. The metal thin films could be recrystallized at only extremely narrow windows of the heat-treatment conditions when they were deposited on the single crystalline sapphire substrate. The window of the solid phase heteroepitaxial growth condition of the Al film was wider than that of the Cu film.

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Selective formation of cubic or tetragonal zirconia thin films of transparent, with no use of metal ion stabilizer by heating molecular precursor films under mild conditions

Functional Materials Letters ◽

10.1142/s1793604721510127 ◽

2021 ◽

Vol 14 (02) ◽

pp. 2151012

Author(s):

Natangue Heita Shafudah ◽

Hiroki Nagai ◽

Mitsunobu Sato

Keyword(s):

Thin Film ◽

Thin Films ◽

Quartz Glass ◽

Glass Substrate ◽

Metal Ion ◽

Tetragonal Zirconia ◽

Precursor Film ◽

Quartz Glass Substrate ◽

Molecular Precursor ◽

Zirconia Thin Film

Cubic or tetragonal zirconia thin films of transparent and 100 nm thickness were selectively formed on a quartz glass substrate by heat-treating the molecular precursor films involving Zr(IV) complexes of nitrilotriacetic acid, at 500[Formula: see text]C in air for 1 h. A precursor solution was prepared by a reaction of the ligand and zirconium tetrabutoxide in alcohol under the presence of butylamine. By the addition of H2O2 or H2O into the solution, the spin-coated precursor films were converted to cubic zirconia thin films by the abovementioned procedure. Further, the identical phase was produced also in the case of the electro-sprayed precursor film which was formed by an addition of H2O2 into the solution. On the other hand, the tetragonal zirconia thin film was obtained from a precursor film formed by using a solution dissolving the original Zr(IV) complex of the ligand, without H2O2 nor H2O. The crystal structure of all thin films was determined by using both the X-ray diffraction (XRD) patterns and Raman spectra. Thus, the zirconia thin films of both crystals could be facilely and selectively obtained with no use of hetero-metal ion stabilizers. The XPS spectra of the thin films show that the O/Zr ratio of the cubic phase is 1.37 and slightly larger than tetragonal one (1.29), and also demonstrate that the nitrogen atoms, which may contribute to stabilize these metastable phases at room temperature, of about 5−7 atomic% was remained in the resultant thin films. The adhesion strengths of cubic zirconia thin film onto the quartz glass substrate was 68 MPa and larger than that of tetragonal one, when the precursor films were formed via a spin coating process. The optical and surface properties of the thin films were also examined in relation to the crystal systems.

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Effects of the Introduction of UV Irradiation and Rapid Thermal Annealing Process to Sol-Gel Method Derived Ferroelectric Sr0.9Bi2.1Ta1.8Nb0.2O9Thin Films on Crystallization and Dielectric/Electrical Properties

Journal of the Korean Institute of Electrical and Electronic Material Engineers ◽

10.4313/jkem.2004.17.1.007 ◽

2004 ◽

Vol 17 (1) ◽

pp. 7-15

Keyword(s):

Electrical Properties ◽

Thermal Annealing ◽

Rapid Thermal Annealing ◽

Uv Irradiation ◽

Sol Gel ◽

Annealing Process ◽

Rapid Thermal Annealing Process ◽

Gel Method ◽

Sol Gel Method ◽

Thermal Annealing Process

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Synthesis and Characterization of Zn Oxide Hexagonal Nano-Pole Films on Quartz Glass Substrate

International Journal of Chemical Reactor Engineering ◽

10.2202/1542-6580.2051 ◽

2009 ◽

Vol 7 (1) ◽

Author(s):

Jie Chen ◽

Jun Wang

Keyword(s):

Growth Mechanism ◽

Quartz Glass ◽

Photoelectron Spectroscopy ◽

Glass Substrate ◽

Sol Gel ◽

Layer Growth ◽

Layer By Layer ◽

Quartz Glass Substrate ◽

Wurtzite Phase ◽

X Ray

Hexagon-shaped Zn oxide nano-pole films with terraces and steps have been successfully fabricated by means of a combined approach involving sol-gel process, high-temperature heat treatment, and the hydrothermal method. The surface chemistry and morphological features of the films were characterized by means of x-ray photoelectron spectroscopy and scanning electron microcopy. All the diffraction peaks in x-ray diffraction pattern match with those of the hexagonal wurtzite phase of Zn oxide. Transmittance measurements show that the optical transmittance of the sample synthesized at 520°C on quartz glass substrate is the highest, reaching about 65% in the visible-light region. Based on the detailed structural characterization and the nucleation-growth kinetics, we find that the whole crystallization process of wurtzite Zn oxide nano-poles includes nanocatalysis and layer-by-layer growth mechanism. The present study provides an important understanding of the growth mechanism for nano-pole synthesis of Zn oxide and related materials.

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