Graphene is a 3-D material in addition to a 2-D material, based on new research from the Queen Mary University of London.
Realizing that it’s a 3-D material is essential for understanding its mechanical properties and for developing novel graphene-based devices.
Often recognized as a ‘wonder material,’ graphene has the highest identified thermal and electrical conductivity, even stronger than steel, light, flexible, and transparent. Its makes use of are broad-ranging, and recently it has been proven it might also act as a barrier against mosquito bites.
To their surprise, they discovered that 2-D graphene, which is a single flat layer of carbon atoms organized in a honeycomb structure, has most of the similar mechanical properties as 3-D graphite; naturally form of carbon made up from a fragile stack of many layers of graphene.
They show that graphene shares an identical resistance to compression as graphite and that it’s significantly denser.
If the thickness of the graphite block is ten layers thick is measured, the width of a single graphene layer is commonly the thickness of the graphene block divided by 10. Therefore, it’s reasonable to consider the thickness of graphene as 0.34 nm.
Dr. Yiwei Sun, the lead author of the study from the Queen Mary University of London, mentioned: “Graphene owes its thickness to an array of chemical bonds sticking out above and beneath the 2-D plane of carbon atoms. Therefore, graphene is a 3-D material, albeit with a minimal thickness.
Graphene is usually known as the world’s first two-dimensional material. It was found in 2004 by peeling off graphene flakes from bulk graphite (used in pencil leads and lubricants) using sticky tape.
It’s regarded as a part of a new class of 2-D materials, and it’s at the moment modeled by scientists as a sheet of atoms with very little depth, hence the title 2-D material.