CB10345 Highly Oriented Pyrolytic Graphite (HOPG) Substrate (SPI-2 Grade) 5x5x1.0 mm

Highly Oriented Pyrolytic Graphite (HOPG) Substrate (SPI-2 Grade) 5x5X1.0 mm Description

Highly Oriented Pyrolytic Graphite (HOPG) is a form of crystalline carbon characterised by well-aligned graphite layers and low defect density. The 5 mm x 5 mm substrate with a thickness of 1.0 mm is optimised for experiments in surface science and scanning probe microscopy. Its SPI-2 grade specification ensures narrow orientation distribution and a flat, uniform surface that benefits quantitative analysis and characterisation in research lab environments.

Highly Oriented Pyrolytic Graphite (HOPG) Substrate (SPI-2 Grade) 5x5X1.0 mm Applications

1.      
Electronics
   - Used as a base substrate in sensor device fabrication to achieve minimised interfacial contamination by leveraging its atomically flat surface.
   - Applied in microelectronic testing setups to provide a stable platform for precise electrical measurements by utilising its controlled crystalline orientation.

2.      
Research
   - Serves as a calibration standard in scanning probe microscopy to achieve high-resolution imaging by leveraging predictable surface morphology.
   - Employed in surface adsorption studies to ensure consistent experimental conditions by using its uniform microstructure.

Highly Oriented Pyrolytic Graphite (HOPG) Substrate (SPI-2 Grade) 5x5X1.0 mm Packing

The substrates are individually packaged in antistatic foam pouches and secured within rigid boxes to prevent mechanical stress during transit. The packaging incorporates sealed materials to guard against dust and moisture. It is advised to store the substrate in a cool, dry, and contamination-free environment. Customised labelling and packaging configurations are available to meet specific handling and storage requirements.

Frequently Asked Questions

Q1: How is the surface flatness of the HOPG substrate verified?
A1: Surface flatness is measured using interferometry and scanning electron microscopy, ensuring minimal surface irregularities and precise alignment of graphite layers for accurate experimental results.

Q2: What storage conditions are recommended for maintaining the substrate’s integrity?
A2: The substrate should be stored in a cool, low-humidity environment within antistatic packaging. This helps prevent moisture uptake and particulate contamination, which can affect surface properties.

Q3: Can the substrate dimensions be modified for specific research applications?
A3: Yes, customisation in dimensions is possible through consultation with the materials processing team. Adjustments can be made while maintaining the crystalline quality and surface uniformity required for sensitive applications.

Additional Information

Graphite substrates such as HOPG play a central role in material science research due to their well-defined layered structure and predictable surface properties. They provide a reliable platform for fundamental studies in surface physics and electrochemistry, where precise control over interface characteristics is critical.

Understanding the behaviour of carbon in its crystalline form helps researchers explore electron transport, adsorption phenomena, and interfacial reactions. This knowledge drives advancements in semiconductor processing, sensor technology, and nanofabrication techniques, reinforcing the value of controlled substrate properties in experimental setups.