⬡ Graphene

Unit 3 · Nanomaterials in use · 9 min

Graphene is a single layer of carbon atoms arranged in a hexagonal honeycomb. It is extremely thin, very strong, and an excellent conductor of electricity and heat. In 2004 two scientists peeled it from graphite with sticky tape, earning the 2010 Nobel Prize in Physics. Pencil graphite is many graphene layers stacked.

Words in this lesson

• 碳 (tàn) — carbon
• 材料 (cái liào) — material

Project: Shade an area with pencil, press tape on and peel it off; think about what "exfoliation" means.