CUED Publications database

Doping stability and opto-electronic performance of chemical vapour deposited graphene on transparent flexible substrates

Kang, MH and Milne, WI and Cole, MT (2015) Doping stability and opto-electronic performance of chemical vapour deposited graphene on transparent flexible substrates. IET Circuits, Devices and Systems, 9. pp. 39-45. ISSN 1751-858X

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Abstract

© The Institution of Engineering and Technology 2015. The primary barrier to wider commercial adoption of graphene lies in reducing the sheet resistance of the transferred material without compromising its high broad-band optical transparency, ideally through the use of novel transfer techniques and doping strategies. Here, chemical vapour deposited graphene was uniformly transferred to polymer supports by thermal and ultraviolet (UV) approaches and the time-dependent evolution of the opto-electronic performance was assessed following exposure to three kinds of common dopants. Doping with FeCl 3 and SnCl 2 showed minor, and notably time unstable, enhancement in the σ opt /σ dc figure of merit, while AuCl 3 -doping markedly reduced the sheet resistance by 91.5% to 0.29 kΩ/sq for thermally transferred samples and by 34.4% to 0.62 kΩ/sq for UV-transferred samples, offering a means of realising viable transparent flexible conductors that near the indium tin oxide benchmark.

Item Type: Article
Subjects: UNSPECIFIED
Divisions: Div B > Solid State Electronics and Nanoscale Science
Div B > Electronics, Power & Energy Conversion
Depositing User: Cron Job
Date Deposited: 17 Jul 2017 19:10
Last Modified: 23 Nov 2017 04:16
DOI: