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20 Two-dimensional Materials - Synthesis, Characterization and Potential Applications

c4cs00256c

María Mercedes Velázquez, Teresa Alejo, David López‐Díaz, Beatriz Martín‐García and María Dolores Merchán

Additional information is available at the end of the chapter

http://dx.doi.org/10.5772/63495

#### **Abstract**

The Langmuir‐Blodgett (LB) methodology is based on the transfer process of a monolay‐ er adsorbedatthe waterinterface, Langmuir film,fromthe air‐waterinterface onto solids by vertical dipping of the substrate immersed on the subphase. The technique allows the continuous variation of material density, packing, and arrangement by compressing or expandingthefilmbyusingbarriers.Consequently,itprovidesthepossibilityofpreparing films with the control of interparticle distance necessary to exploit the two‐dimensional (2D) materials in technological applications. In this chapter, we present some examples of fabrication of thin films of 2D material using this methodology. We show some methodologies based on this technique to build thin films of graphene oxides, Quan‐ tum Dots (QDs), and silver nanowires.

**Keywords:** Langmuir‐Blodgett films, graphene oxide, silver nanowires, CdSe Quan‐ tum Dots, AFM, TEM, FESEM
