Nonplanar graphite-based devices having multiple bandgaps
US8664642B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 24, 2013 |
| Grant date | Mar 4, 2014 |
| Priority date | — |
| Expiry date | Jul 24, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24521
- WIPO fieldMicro-structural and nano-technology
- WIPO sectorChemistry
Abstract
A graphite-based device comprising a substrate with a plurality of zones and one or more graphene stacks overlaying the zones is provided. A first zone comprises a plurality of surfaces. A first surface is adjacent to a second surface in the plurality of surfaces. The one or more graphene stacks comprise a first graphene stack in the first zone. The first graphene stack comprises a plurality of graphene layers, a first of which is formed on the first surface. The first graphene layer is either planar or non-planar. A second graphene layer in the plurality of graphene layers comprises a first portion formed on a top surface of the first graphene layer, a second portion formed on the second surface and a first intermediate portion connecting the first and second portions. The second graphene layer is non-planar. The first and second graphene layers have different characteristic dimensions and different bandgaps.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.