NDLI: All-graphene electronics by exploiting physical analogies

Content Provider	IEEE Xplore Digital Library
Author	Low, T.
Copyright Year	2010
Description	Author affiliation: Network for Computational Nanoelectronics, School of Electrical and Computer Engineering, Purdue University, West Lafayette, Indiana, US (Low, T.)
Abstract	The concept of a bandgap is so deeply ingrained that it is hard to imagine an integrated circuit built on graphene, whose pristine state is a gapless material with charge carriers obeying the relativistic Dirac spectrum, analogous to light. Entertaining such notion is so appalling that many have proposed to cut graphene into bits and pieces, thinking that size quantization effect would recover a bandgap. Unfortunately, the edges are too disordered and unzipping nanotubes simply unzips more nightmares for device integration engineers. Embracing pristine graphene with its Dirac spectrum therefore appeals as a viable technological option worth careful investigation. Such “all-graphene electronics”, in which graphene is kept pristine and lithographic patterning is performed on the electrostatic gates or substrates instead, is the subject of this talk. To realize this, we have to demonstrate in pristine graphene at least two most basic elements of integrated circuit i.e. devices performing basic logic operations and interconnect that allows communication between them. In this talk, I will show through theory and simulations, and in some cases in corroboration with experiments, that the novel graphene electronic properties allow one to make interesting electronic devices based on analogies with optics and quantum Hall physics. In optics, one manipulates light beams through designs of refractive index of mediums. In graphene, the electron or hole density plays the role of refractive index instead. Strings of analogous electron optics devices such as Veselago lens, optical fiber, beam collimators can be realized in gapless graphene, thereby achieving spatial manipulation of electron beams leading to novel reconfigurable interconnects. In quantum Hall physics, it is well known that spatial separation of forward and backward going states leads to absence of back-scattering. In graphene, a large pseudo-magnetic field can be created through various novel strain geometries, and open up the possibility of low power computing devices. Here, we outline our proposal for all-graphene electronics and review our recent work described in [1–5] and also other related work described in the references of [1–5].
Starting Page	1231
Ending Page	1234
File Size	606434
Page Count	4
File Format	PDF
ISBN	9781424457977
e-ISBN	9781424457984
DOI	10.1109/ICSICT.2010.5667614
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2010-11-01
Publisher Place	China
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Junctions Optical waveguides Electron optics Strain Photonic band gap Tunneling
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in