Acid Etching - Nanotechnology

What is Acid Etching?

Acid etching is a chemical process that uses acidic substances to remove layers from the surface of a material, typically metals or semiconductors. This technique is crucial in various fields, including nanotechnology, where precise material removal at the nanoscale is essential for fabricating nanostructures and devices.

How Does Acid Etching Work?

In acid etching, a substrate is exposed to an acid solution that reacts with the material, dissolving it slowly. Commonly used acids include hydrofluoric acid, nitric acid, and sulfuric acid. The etching rate can be controlled by adjusting the concentration of the acid, the temperature, and the etching time.

Applications in Nanotechnology

Acid etching is widely used in the fabrication of nanostructures such as nanowires, nanopores, and nanorods. It is also employed in the production of microelectromechanical systems (MEMS) and nanoelectromechanical systems (NEMS), where precise control over material removal is crucial for device performance.

Advantages of Acid Etching

One of the primary advantages is its ability to produce highly precise and smooth surfaces, which is essential for optical applications and biomedical devices. Additionally, acid etching can be performed at room temperature and does not require expensive equipment, making it a cost-effective option for nanofabrication.

Challenges and Limitations

Despite its advantages, acid etching has several challenges. The process can be difficult to control, leading to issues such as over-etching or under-etching. Moreover, the use of hazardous chemicals requires strict safety protocols. Another limitation is its incompatibility with certain materials, which may require alternative etching methods.

Future Prospects

The future of acid etching in nanotechnology looks promising with ongoing research focused on improving precision and control. Innovations such as plasma-enhanced etching and the development of eco-friendly etchants are expected to overcome existing limitations, making acid etching even more versatile and efficient.

Relevant Publications

Nanostructured cobalt/copper catalysts for efficient electrochemical carbon dioxide reduction.

Issue Release: 2024

Reduction of surface treatment time by combination of citric acid and ascorbic acid while restoring shear bond strength of metal brackets bonded to bleached enamel: a pilot study.

Issue Release: 2024

Facile Fabrication of Titanium Carbide (Ti3C2)-Bismuth Vanadate (BiVO4) Nano-Coupled Oxides for Anti-cancer Activity.

Issue Release: 2024

Surface Modification of Feldspathic Ceramic Used for Minimally Invasive Restorations: Effect of Airborne Particle Type on the Surface Properties and Biaxial Flexural Strength.

Issue Release: 2024

Enhancing Reversibility and Stability of Mg Metal Anodes: High-Exposure (002) Facets and Nanosheet Arrays for Superior Mg Plating/Stripping.

Issue Release: 2024

Synthesis of Hydrofluoric (HF) Acid Free, Two-Dimensional (2D) Tantalum Carbide MXene Nanosheets and Quantum Dots.

Issue Release: 2024

Assessment of the Micro-Tensile Bond Strength of a Novel Bioactive Dental Restorative Material (Surefil One).

Issue Release: 2024

Discovery of Self-Assembled 2D Ru/Si Superlattices Boosting Hydrogen Evolution.

Issue Release: 2024

Effect of Salvadora persica on resin-dentin bond stability.

Issue Release: 2024

Chemical etching of CAD-CAM glass-ceramic-based materials using fluoride solutions for bonding pretreatment.

Issue Release: 2024

The effect of preprocedural mouthrinses against COVID-19 before acid etching on the microleakage of a resin-based sealant in permanent molars: An experimental study.

Issue Release: 2024

Aluminum Micropillar Surfaces with Hierarchical Micro- and Nanoscale Features for Enhancement of Boiling Heat Transfer Coefficient and Critical Heat Flux.

Issue Release: 2024

Effect of surface treatment and resin cement type on the bond strength of polyetheretherketone to lithium disilicate ceramic.

Issue Release: 2024

Nanocavity in hollow sandwiched catalysts as substrate regulator for boosting hydrodeoxygenation of biomass-derived carbonyl compounds.

Issue Release: 2024

Aqueous Developable and CO2-Sourced Chemical Amplification Photoresist with High Performance.

Issue Release: 2024

Repair versus Replacement of Defective Direct Dental Restorations: A Multinational Cross-sectional Study with Meta-Analysis.

Issue Release: 2024

Atomic Layer Deposition of Zirconia on Titanium Implants Improves Osseointegration in Rabbit Bones.

Issue Release: 2024

Promotion of Dentin Biomimetic Mineralization and Bonding Efficacy by Interfacial Control of an Experimental Citric Acid Dental Etching Agent.

Issue Release: 2024

Near-Unity Photoluminescence Quantum Yield of Core-Only InP Quantum Dots a Simple Postsynthetic InF Treatment.

Issue Release: 2024

Hierarchical etching-assembly engineering of Fe-based composite microspheres with balanced magnetic-dielectric synergy towards ultrahigh electromagnetic wave absorption.

Issue Release: 2024

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