Review of fabrication methods of large-area transparent graphene electrodes for
industry
#MMPMID36641556
Mustonen P
; Mackenzie DMA
; Lipsanen H
Front Optoelectron
2020[Jun]; 13
(2
): 91-113
PMID36641556
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Graphene is a two-dimensional material showing excellent properties for
utilization in transparent electrodes; it has low sheet resistance, high optical
transmission and is flexible. Whereas the most common transparent electrode
material, tin-doped indium-oxide (ITO) is brittle, less transparent and
expensive, which limit its compatibility in flexible electronics as well as in
low-cost devices. Here we review two large-area fabrication methods for graphene
based transparent electrodes for industry: liquid exfoliation and low-pressure
chemical vapor deposition (CVD). We discuss the basic methodologies behind the
technologies with an emphasis on optical and electrical properties of recent
results. State-of-the-art methods for liquid exfoliation have as a figure of
merit an electrical and optical conductivity ratio of 43.5, slightly over the
minimum required for industry of 35, while CVD reaches as high as 419.
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