**4.2 Electronics**

Graphene's utmost demand for electronics results owing to its hike in the physical properties. High current capacity of transportation and various experimentally analyzed properties having numerical values are shown in **Figure 6** [34].

Radio-frequency transistors and analog electronics are ultimately the very finest tasks driven by graphene. It is because graphene comprises exceptional rise in its trans-conductance, material's stability and thinness. In addition, there is no need of switching off the devices entirely irrespective of its capability to do so, in radio-frequency transistors. For instance, in the process of signal's amplification in a single amplifier,the transistor is usually remains in the on condition [35]. Electro-absorption modulator is another utility as gate field intrinsically adjust graphene's Fermi level [36]. On-chip optical interconnections demand ultimately a very high bandwidth modulator, large speed and tiny footprints. Graphene having single layer causes slight light's absorption as the interaction of graphene with light is substantially rigorous. This problem is generally resolved by the coupling of graphene with a silicon waveguide. It creates an elevation by 0.1 dB *μm*–1 of 1.35–1.60 *μm* at frequencies greater than 1 GHz [36]. The notable benefit of graphene-based modulators is its sustainability in integrated form along with Si-CMOS electronics. One of the most dominant edge of graphene is its saturated absorption, that reveals particularly decrease of absorption light as a function of increase in light intensity. Saturable absorbers therefore, helps to turn continuous wave output into ultrashort light pulses. Picosecond laser pulses can be generated by graphene due to its peculiar traits like higher stability, quick decay and a broad absorption range [37].
