Field-effect tunneling transistor based on vertical graphene heterostructures

Autor: Britnell, L., Gorbachev, R. V., Jalil, R., Belle, B. D., Schedin, F., Katsnelson, M. I., Eaves, L., Morozov, S. V., Peres, N. M. R., Leist, J., Geim, A. K., Novoselov, K. S., Ponomarenko, L. A.
Rok vydání: 2011
Předmět:
Zdroj: Science 335 (6071) 947-950 (2012)
Druh dokumentu: Working Paper
DOI: 10.1126/science.1218461
Popis: We report a bipolar field effect tunneling transistor that exploits to advantage the low density of states in graphene and its one atomic layer thickness. Our proof-of-concept devices are graphene heterostructures with atomically thin boron nitride acting as a tunnel barrier. They exhibit room temperature switching ratios ~50, a value that can be enhanced further by optimizing the device structure. These devices have potential for high frequency operation and large scale integration.
Databáze: arXiv