Graphene: The Next Big (But Thin) Thing

Graphene is a remarkable material, one atom thick, with superior electrical and thermal conductivity, and strength. It differs from graphite, despite being made of the same carbon atoms, due to its atomic arrangement. Graphene was discovered in 2004 using sticky tape to peel layers from graphite. Its potential applications include replacing silicon in microchips and use in touchscreens. However, producing high-quality graphene is challenging, similar to the early silicon industry, but solvable with time and investment.

What makes graphene stronger than steel despite being only one atom thick?

• Its ability to conduct electricity

• Its crystalline structure

• Its color

• Its atomic arrangement

How does the atomic structure of graphite differ from that of diamond?

• Graphite has a tetrahedral structure

• Graphite atoms are bonded to three other carbon atoms

• Graphite is a perfect electrical insulator

• Graphite is clear

What method was used to first isolate graphene?

• Electrochemical exfoliation

• Chemical vapor deposition

• Laser cutting

• Sticky tape method

Why is graphene considered a potential replacement for silicon in microchips?

• It is heavier

• It is more colorful

• It can operate at higher frequencies

• It is cheaper to produce

What is a major challenge in the production of graphene?

• Its lack of conductivity

• Producing high-quality, pure samples

• Its brittleness

• Finding a use for it