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Title: Methods for top-down fabrication of wafer scale TMDC monolayers

Patent ·
OSTI ID:1407949

A method of forming a TMDC monolayer comprises providing a multi-layer transition metal dichalcogenide (TMDC) film. The multi-layer TMDC film comprises a plurality of layers of the TMDC. The multi-layer TMDC film is positioned on a conducting substrate. The conducting substrate is contacted with an electrolyte solution. A predetermined electrode potential is applied on the conducting substrate and the TMDC monolayer for a predetermined time. A portion of the plurality of layers of the TMDC included in the multi-layer TMDC film is removed by application of the predetermined electrode potential, thereby leaving a TMDC monolayer film positioned on the conducting substrate.

Research Organization:
Argonne National Laboratory (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC02-06CH11357
Assignee:
UChicago Argonne, LLC
Patent Number(s):
9,809,903
Application Number:
15/061,696
OSTI ID:
1407949
Resource Relation:
Patent File Date: 2016 Mar 04
Country of Publication:
United States
Language:
English

References (5)

Process to Produce Atomically Thin Crystals and Films patent-application November 2013
Novel Growth Methods For Controlled Large-Area Fabrication Of High-Quality Graphene Analogs patent-application September 2014
Novel Process For Scalable Synthesis Of Molybdenum Disulfide Monolayer And Few-Layer Films patent-application December 2014
Scalable 2D-Film CVD Synthesis patent-application May 2015
Spontaneous exfoliation and tailoring of MoS2 in mixed solvents journal January 2014