4.7 Article

Domain epitaxial growth of Ta3N5 film on c-plane sapphire substrate

Related references

Note: Only part of the references are listed.
Article Materials Science, Coatings & Films

Orthorhombic Ta3-xN5-yOy thin films grown by unbalanced magnetron sputtering: The role of oxygen on structure, composition, and optical properties

Jui-Che Chang et al.

Summary: Direct growth of orthorhombic Ta3N5-type Ta-O-N compound thin films with different atomic fractions on Si and sapphire substrates was achieved using unbalanced magnetron sputtering. Increasing the total pressure led to higher oxygen incorporation and a decrease in nitrogen and tantalum fractions in the films, resulting in a decrease in lattice constant. The increase in oxygen incorporation also resulted in a widening of the optical bandgap and a transition from crystalline Ta3-xN5-yOy to amorphous O-rich Ta-O-N compound films.

SURFACE & COATINGS TECHNOLOGY (2021)

Article Chemistry, Physical

Towards reliable X-ray photoelectron spectroscopy: Sputter-damage effects in transition metal borides, carbides, nitrides, and oxides

G. Greczynski et al.

Summary: The study found that Ar+ ion irradiation can affect the interpretation of XPS spectra, with varying degrees and effects of sputter damage for different material systems, necessitating a high level of caution during spectral interpretation.

APPLIED SURFACE SCIENCE (2021)

Article Nanoscience & Nanotechnology

Evolution of Surface Oxidation on Ta3N5 as Probed by a Photoelectrochemical Method

Keyan Li et al.

Summary: This study presents an in situ method to probe the evolution of surface oxidation on photoanodes during active operation in aqueous solutions. Experimental and theoretical exploration indicate that changes in surface oxidation alter the carrier recombination and interfacial hole transfer rates, leading to a decrease in photocurrent. The methodology is expected to enhance understanding of surface oxidation on nonoxide semiconductor photoelectrodes and its impact on their operation.

ACS APPLIED MATERIALS & INTERFACES (2021)

Article Chemistry, Physical

Surface-Modified Ta3N5 Photoanodes for Sunlight-Driven Overall Water Splitting by Photoelectrochemical Cells

Tomohiro Higashi et al.

Summary: The study demonstrates that surface modification of Ta3N5 photoanodes with NiFeOx significantly enhances the water splitting efficiency of PEC cells. A PEC cell constructed with NiFeOx/Ta3N5 photoanode and LTCA:Al photocathode achieves stoichiometric hydrogen and oxygen generation from water splitting without the need for an external bias voltage.

CATALYSTS (2021)

Article Chemistry, Physical

Effects of Adsorbing Noble Metal Single Atoms on the Electronic Structure and Photocatalytic Activity of Ta3N5

Yanxia Ma et al.

Summary: Loading noble metal single atoms (M = Pt, Rh, Ir, and Ru) on the Ta3N5 surface significantly enhances its photocatalytic hydrogen generation performance. Adsorbing noble metal single atoms on (100) and (110) surfaces facilitates the transfer of photoinduced electrons, with Rh, Ir, and Ru single atoms showing comparable or better performance than Pt as cocatalysts. This knowledge can guide experimentalists in designing more efficient photocatalysts by depositing proper noble metal single atoms on semiconductor surfaces.

JOURNAL OF PHYSICAL CHEMISTRY C (2021)

Article Materials Science, Multidisciplinary

Study on the Electrical, Structural, Chemical and Optical Properties of PVD Ta(N) Films Deposited with Different N2 Flow Rates

Yingying Hu et al.

Summary: The influence of different N-2 flow rates on Ta(N) films was studied, revealing that increasing N-2 flow rates decrease the deposition rate and increase resistivity. Crystal structure transitions from beta-Ta to TaN(111) and finally to the N-rich phase Ta3N5(130, 040) as N-2 flow rates increase. Optical properties, specifically refractive index and extinction coefficient of Ta(N), differ with thickness and N-2 flow rates, depending on crystal size and phase structure.

COATINGS (2021)

Article Chemistry, Physical

Indirect bandgap, optoelectronic properties, and photoelectrochemical characteristics of high-purity Ta3N5 photoelectrodes

Johanna Eichhorn et al.

Summary: Ammonia annealing significantly improves the crystallinity and material quality of tantalum nitride thin films, leading to a better understanding of its fundamental semiconductor properties. However, excessive annealing temperatures can cause material decomposition and reduce performance. The high material quality allows for the clear identification of the Ta3N5 bandgap as indirect, providing a foundation for further optimization of photoanodes.

JOURNAL OF MATERIALS CHEMISTRY A (2021)

Review Materials Science, Multidisciplinary

X-ray photoelectron spectroscopy: Towards reliable binding energy referencing

G. Greczynski et al.

PROGRESS IN MATERIALS SCIENCE (2020)

Article Chemistry, Multidisciplinary

Compromising Science by Ignorant Instrument Calibration-Need to Revisit Half a Century of Published XPS Data

Grzegorz Greczynski et al.

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION (2020)

Review Chemistry, Multidisciplinary

Review of GaN Thin Film and Nanorod Growth Using Magnetron Sputter Epitaxy

Aditya Prabaswara et al.

APPLIED SCIENCES-BASEL (2020)

Article Nanoscience & Nanotechnology

Direct Deposition of Crystalline Ta3N5 Thin Films on FTO for PEC Water Splitting

Hamed Hajibabaei et al.

ACS APPLIED MATERIALS & INTERFACES (2019)

Article Chemistry, Physical

Study on AlN buffer layer for GaN on graphene/copper sheet grown by MBE at low growth temperature

Jiadong Yu et al.

JOURNAL OF ALLOYS AND COMPOUNDS (2019)

Article Materials Science, Multidisciplinary

Oxygen incorporated during deposition determines the crystallinity of magnetron-sputtered Ta3N5 films

M. Rudolph et al.

THIN SOLID FILMS (2019)

Article Physics, Multidisciplinary

Template-free synthesis of Ta3N5 hollow nanospheres as a visible-light-driven photocatalyst

Taifeng Wang et al.

JOURNAL OF PHYSICS COMMUNICATIONS (2019)

Article Materials Science, Coatings & Films

Structure, phase evolution, and mechanical properties of DC, pulsed DC, and high power impulse magnetron sputtered Ta-N films

C. M. Koller et al.

SURFACE & COATINGS TECHNOLOGY (2018)

Article Chemistry, Multidisciplinary

Influence of InAiN Nanospiral Structures on the Behavior of Reflected Light Polarization

Yu-Hung Kuo et al.

NANOMATERIALS (2018)

Article Materials Science, Coatings & Films

The role of oxygen in magnetron-sputtered Ta3N5 thin films for the photoelectrolysis of water

M. Rudolph et al.

SURFACE & COATINGS TECHNOLOGY (2017)

Article Multidisciplinary Sciences

Active removal of waste dye pollutants using Ta3N5/W18O49 nanocomposite fibres

Daniel R. Jones et al.

SCIENTIFIC REPORTS (2017)

Article Nanoscience & Nanotechnology

Computational Approach for Epitaxial Polymorph Stabilization through Substrate Selection

Hong Ding et al.

ACS APPLIED MATERIALS & INTERFACES (2016)

Article Materials Science, Multidisciplinary

Preparation of TaO2 thin films using NbO2 template layers by a pulsed laser deposition technique

Y. Muraoka et al.

THIN SOLID FILMS (2016)

Article Chemistry, Physical

Full ALD Ta2O5-based stacks for resistive random access memory grown with in vacuo XPS monitoring

K. V. Egorov et al.

APPLIED SURFACE SCIENCE (2015)

Article Chemistry, Physical

Structural, optical and photoelectrochemical characterizations of monoclinic Ta3N5 thin films

Sherdil Khan et al.

PHYSICAL CHEMISTRY CHEMICAL PHYSICS (2015)

Article Materials Science, Multidisciplinary

Optoelectronic properties of Ta3N5: A joint theoretical and experimental study

Juliana M. Morbec et al.

PHYSICAL REVIEW B (2014)

Article Physics, Applied

Resonant optical absorption and defect control in Ta3N5 photoanodes

A. Dabirian et al.

APPLIED PHYSICS LETTERS (2013)

Article Chemistry, Physical

Efficiency of solar water splitting using semiconductor electrodes

A. B. Murphy et al.

INTERNATIONAL JOURNAL OF HYDROGEN ENERGY (2006)

Article Chemistry, Inorganic & Nuclear

Structural and compositional variations in Ta3N5 produced by high-temperature ammonolysis of tantalum oxide

Stuart J. Henderson et al.

JOURNAL OF SOLID STATE CHEMISTRY (2006)

Article Chemistry, Physical

Conduction and valence band positions of Ta2O5, TaON, and Ta3N5 by UPS and electrochemical methods

WJ Chun et al.

JOURNAL OF PHYSICAL CHEMISTRY B (2003)