Читать книгу 2D Monoelements - Группа авторов - Страница 24

Another significant application of phosphorene is the fabrication of field-effect transistors (FETs) [38]. Phosphorene devices can offer many advantages over graphene transistors due to the good saturation of the current and their band gap [62]. Phosphorenes have attractive characteristics that are critical for advanced circuits and sophisticated amplifiers [10]. In particular, phosphorene exhibits drain current modulation of 10⁵, high flexibility, and high carrier mobilities of about 1,000 cm²V⁻¹s⁻¹ which is larger than the other flexible transistors based on 2D monolayers like WSe₂ and MoS₂. Furthermore, when the length of channel is 300 nm, the measurements show that phosphorene exhibits a cutoff frequency of 12 GHz for the short-circuit current while frequency oscillation reaches the value of 30 Hz.

Beyond the multi-GHz frequency, phosphorene constitutes one of the best candidates for future generations of ultrathin layer transistors [10]. Moreover, phosphorene is not only used in field-effect transistor applications, but also in other electronic devices based on semiconductor materials due to its electronic properties and its charge mobility.