Theoretical Design of Functional Molecular Devices Based on Graphene View Homepage


Ontology type: schema:MonetaryGrant     


Grant Info

YEARS

2011-2014

FUNDING AMOUNT

250000 CNY

ABSTRACT

With the continuous development of science and technology and the miniaturization of electronic devices, silicon-based semiconductor materials and traditional integrated circuit design has been unable to meet the requirements of the emergence of graphene to the development of nanoelectronics has brought attractive prospects The In this paper, graphene as the research object, focusing on the frontier, in-depth study of the electrical properties of graphene and device function. The main research contents include: defects, dendritic alloy structure characteristics; graphene rectifier, graphene switch and graphene spin filter electronic transport characteristics; metal electrode and graphene coupling simulation; and so on, and fully consider the different Metal electrode, graphene chemical modification, gate voltage regulation of graphene level. The electronic structure and transport properties of the system were calculated by density functional theory and non - equilibrium Green 's function transport theory. The transport properties were further analyzed by using molecular orbital theory, hybrid orbital theory and spin orbit theory. This paper tries to construct the theoretical model of functional molecular devices based on graphene, such as rectifier, switch and spin filter, and provide the structural model, physical principle and performance parameters for experimental application. More... »

URL

http://npd.nsfc.gov.cn/projectDetail.action?pid=61101009

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