The Role of Surface Oxygen in the Growth of Large Single-Crystal Graphene on Copper
Abstract
The growth of high-quality single crystals of graphene by chemical vapor deposition on copper (Cu) has not always achieved control over domain size and morphology, and the results vary from lab to lab under presumably similar growth conditions. We discovered that oxygen (O) on the Cu surface substantially decreased the graphene nucleation density by passivating Cu surface active sites. Control of surface O enabled repeatable growth of...
Paper Details
Title
The Role of Surface Oxygen in the Growth of Large Single-Crystal Graphene on Copper
Published Date
Nov 8, 2013
Journal
Volume
342
Issue
6159
Pages
720 - 723
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