Introduction

Properties of graphene

Mechanical properties

- High Young's modulus (~1,100 Gpa ) High fracture strength (125 Gpa ) - Graphene is as the strongest material ever measured, some 200 times stronger than structural steel

Optical properties

Monolayer graphene absorbs πα≈ 2.3% of white light (97.7 % transmittance), where α is the fine-structure constant.