US 2011/0030772 A1 · Electronic device including graphene-based layer(s), and/or method or making the same

Abstract

Certain example embodiments of this invention relate to the use of graphene as a transparent conductive coating (TCC). In certain example embodiments, graphene thin films grown on large areas hetero-epitaxially, e.g., on a catalyst thin film, from a hydrocarbon gas (such as, for example, C2H2, CH4, or the like). The graphene thin films of certain example embodiments may be doped or undoped. In certain example embodiments, graphene thin films, once formed, may be lifted off of their carrier substrates and transferred to receiving substrates, e.g., for inclusion in an intermediate or final product. Graphene grown, lifted, and transferred in this way may exhibit low sheet resistances (e.g., less than 150 ohms/square and lower when doped) and high transmission values (e.g., at least in the visible and infrared spectra).

Claims30

Dependent claims

A solar cell, comprising:

a glass substrate;
a first graphene-based conductive layer located, directly or indirectly, on the glass substrate;
a first semiconductor layer in contact with the first graphene-based conductive layer;
at least one absorbing layer located, directly or indirectly, on the first semiconductor layer;
a second semiconductor layer located, directly or indirectly, on the at least one absorbing layer;
a second graphene-based conductive layer in contact with the second semiconductor layer;
and
a back contact located, directly or indirectly, on the second-graphene-based conductive layer.

5 more elements

Dependencies are inferred from the claim text.

Electronic device including graphene-based layer(s), and/or method or making the same

Life of this patent

Electronic device including graphene-based layer(s), and/or method or making the same

Life of this patent

Abstract

Claims30