New Graphene Semiconductors Leads to Faster Computers

New Graphene Semiconductors Leads to 10x Faster Computers?

"Semiconductors are essential to allow all computers to function. They allow us to create tiny switches which can be turned on and off to allow the flow of electricity. It is this electricity flowing through electrical circuits that allows computers to perform calculations," said Sarah Haigh, professor of materials at the National Graphene Institute, University of Manchester, UK.

The Properties of Graphene have long been touted as a wonder material successor to silicon in semiconductors.

Why Is Graphene The Wonder Material?

• Strong: Graphene is about 200 times stronger than steel, yet incredibly flexible.
• Lightweight: It is the thinnest and lightest material known to man.
• Conductive: Graphene has excellent electrical and thermal conductivity.
• Transparent: It is nearly transparent, absorbing only about 2.3% of light.
• Impermeable: It is impermeable to gasses and liquids, even helium.

Graphene Incredible Properties

• High Electron Mobility: Electrons move much faster in graphene than in silicon, potentially enabling faster transistors and electronic devices.??
• Excellent Thermal Conductivity: Graphene dissipates heat effectively, which is crucial for high-performance electronics.??
• Strength and Flexibility: Graphene is incredibly strong and flexible, opening possibilities for flexible electronics and new device designs.??

Researchers have recently created the world's first functional semiconductor made from graphene, marking a significant breakthrough in electronics.

The Innovation

• Scientists from Georgia Institute of Technology and Tianjin University have produced graphene-based semiconductors with unique properties.
• This is the first time graphene has been successfully transformed into a functional semiconductor.

Advantages Over Silicon

• Silicon is approaching its physical limits for miniaturization and speed.
• The graphene semiconductor offers potential for smaller, faster, and more efficient electronic devices.

Key Features

1. Electron Mobility: The graphene semiconductor has 10 times greater electron mobility than silicon, which means faster computing.
2. Bandgap: Researchers overcame the crucial challenge of creating an adequate bandgap (0.6 eV) in graphene, which is essential for semiconductor functionality. Band Gap Explained: A band gap is an energy range in a solid where no electron states can exist. It's crucial for semiconductors because it allows them to switch between conducting and insulating states, forming the basis of transistors.??
3. Compatibility: The material is compatible with conventional existing manufacturing microelectronics processing methods.

Production Method

• The semiconductor was created by growing epitaxial graphene on silicon carbide (SiC) wafers using special furnaces.
• A carefully controlled annealing process was used to create atomically-flat terraces of graphene aligned with the SiC substrate.

Potential Applications

1. Faster Computing: Higher electron mobility could lead to faster processing speeds.? Graphene's high electron mobility could enable transistors that operate at much higher frequencies than current silicon transistors.
2. Reduced Heat Generation: The material's properties allow for more efficient electron movement, potentially reducing heat generation in devices.
3. Quantum Computing: The graphene semiconductor may have applications in quantum computing due to its unique quantum mechanical properties.
4. Flexible electronics: Graphene's flexibility could be used to create bendable and foldable displays, sensors, and other electronic devices.
5. Optoelectronics: Graphene can absorb and emit light over a wide range of wavelengths, making it suitable for applications in photodetectors, solar cells, and LEDs.??

Future Implications

• This breakthrough could open the door to a new paradigm in electronics, potentially replacing silicon as the dominant material in semiconductor technology.
• The discovery may lead to the development of novel technologies that capitalize on graphene's distinctive characteristics.

Graphene semiconductors will play a significant role in the future of electronics, enabling faster, more efficient, and more versatile devices.

Green Graphene From Biochar Organic Waste Streams

The conversion of graphite to graphene involves various methods. The pursuit of sustainable and economically viable sources for graphene synthesis has led to the exploration of alternative precursors. The utilization of biomass pyrolysis-derived biochar as a precursor for graphene synthesis stands out as an environmentally friendly and economically viable approach.

Turning biochar into graphene can have many uses. Graphene has a much higher monetary value than the organic biorefinery feedstock used in creating it. Synthetic graphene is a profitable pursuit turning these agricultural residues into graphene.

Once the plant substance is transformed to biochar, it is mixed with a catalyst with the biochar and heats the mixture for one hour to make porous graphene.

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