**Defects in Graphene and its Derivatives**

Soumyajyoti Haldar and Biplab Sanyal

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/64297

#### **Abstract**

The experimental realization of graphene along with its unique properties in 2004 triggered huge scientific researches in the field of graphene and other two-dimension‐ al (2D) materials. The experimental preparation processes of these materials are prone to defect formation. These defects affect the properties of the pristine system, which can be beneficial or detrimental from the application point of view. In this book chapter, we discuss a few cases of defects in 2D materials such as graphene and its derivatives and their roles in applications.

**Keywords:** defects in graphene and its derivatives, graphene defects, hybrid materi‐ als, gas sensing, *ab initio* theory, magnetism
