An effective approach to realize graphene based p-n junctions via adsorption of donor and acceptor molecules
Cited 0 times inCited 0 times in
- An effective approach to realize graphene based p-n junctions via adsorption of donor and acceptor molecules
- Rezapour, M. Reza; Lee, Geunsik; Kim, Kwang S.
- Issue Date
- Pergamon Press Ltd.
- CARBON, v.153, pp.525 - 530
- Atomically thin two dimensional materials such as graphene offer excellent capabilities suitable for a number of low power versatile applications. Here, employing first principle calculations, we introduce a feasible approach to realize an efficient graphene based p-n junction (PNJ) which is composed of non-covalently physisorbed tetracyanoquinodimethane (TCNQ) and tetrathiafulvalene (TTF) molecules onto an armchair graphene nanoribbon (AGNR). We show that compared to conventional graphene based p-n systems, our suggested PNJ exhibits low threshold voltage (), large current-voltage ratio, and almost no sensitivity to conformational variations. Using a simple model, we also provide a theoretical background to explain the rectifying behavior of the suggested PNJ and show that tuning the distance between p and n doped regions modifies the current-voltage ratio. Our study indicates that the perfect diode behavior along with stability under various practical conditions makes our proposed PNJ a promising building block to fabricate next generation graphene based nanosize transistors.
- Appears in Collections:
- SNS_Journal Papers
- Files in This Item:
- There are no files associated with this item.
can give you direct access to the published full text of this article. (UNISTARs only)
Show full item record
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.