CHAPTER 6: Graphene: Preparation and Applications

In this chapter, the synthesis and applications of graphene are discussed. Synthesis methods have been organized based on the synthesis route used, i.e. top–down and bottom–up strategies. The advantages and disadvantages of each method are discussed based on their scalability, cost, performance, etc., which would be beneficial for finding suitable applications for each type of graphene. Then, the properties of graphene are introduced, including their excellent electrical/thermal conductivity, high specific surface area, tunable band gap, and unique optical properties. The applications and roles of graphene in energy conversion/storage and optoelectronic devices are also discussed based on their unique properties. Application examples, such as lithium batteries, supercapacitors, solar cells, stretchable transparent electrodes, and stretchable transparent electronics, have also been summarized.