Loading...
Please wait, while we are loading the content...
Van der Waals 2D layered-material bipolar transistor
| Content Provider | Scilit |
|---|---|
| Author | Aftab, Sikandar Eom, Jonghwa |
| Copyright Year | 2019 |
| Description | Journal: 2d Materials Ultrathin and light heterojunction bipolar transistors based on two-dimensional (2D) layered materials with flexible semiconducting properties have been considered for several electronic applications. In this paper, a van der Waals p-BP/n-MoS2/p-BP bipolar junction transistor is demonstrated. It is fabricated using mechanical exfoliation, where a dry transfer technique is used to stack a vertical double heterojunction. The device structure includes nanoflakes of black phosphorus (BP) and MoS2. The current-voltage characteristics of the common-emitter and common-base configurations are examined. These p-BP/n-MoS2/p-BP bipolar transistors exhibit current-voltage characteristics similar to those of conventional p-n-p bipolar transistors. Devices with thin MoS2 layers show good saturation current-voltage characteristics, and a maximum common-emitter current gain (β = IC/IB) of approximately 9.6 is obtained at room temperature (300 K). Furthermore, the thickness dependence of the base region (n-MoS2) is investigated for the common-emitter output electrical characteristics (VCE-IC) of a double heterojunction bipolar transistor in which the emitter is grounded. The collector current decreases as the thickness of n-MoS2 is increased. This study can pave the way for the application of 2D materials as controllable amplifiers in flexible electronics. |
| Related Links | https://iopscience.iop.org/article/10.1088/2053-1583/ab1457/pdf |
| ISSN | 20531583 |
| e-ISSN | 20531583 |
| DOI | 10.1088/2053-1583/ab1457 |
| Journal | 2d Materials |
| Issue Number | 3 |
| Volume Number | 6 |
| Language | English |
| Publisher | IOP Publishing |
| Publisher Date | 2019-03-28 |
| Access Restriction | Open |
| Subject Keyword | Journal: 2d Materials Heterojunction Bipolar Transistors |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Mechanics of Materials Condensed Matter Physics Materials Science Mechanical Engineering |
