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|Title:||Band-like transport in surface-functionalized highly solution-processable graphene nanosheets|
|Authors:||Wang, S. |
|Citation:||Wang, S., Chia, P.-J., Chua, L.-L., Zhao, L.-H., Png, R.-Q., Sivaramakrishnan, S., Zhou, M., Goh, R.G.-S., Friend, R.H., Wee, A.T.-S., Ho, P.K.-H. (2008-09-17). Band-like transport in surface-functionalized highly solution-processable graphene nanosheets. Advanced Materials 20 (18) : 3440-3446. ScholarBank@NUS Repository. https://doi.org/10.1002/adma.200800279|
|Abstract:||Substochiometric Graphite oxide (GO) nanosheets were surface-functionalized and purified to show excellent dispersity at the single-sheet level in organic solvents, sufficient for spin-coating and printing onto various substrates. It is found that the sheets are ca. 18-Å thick due to the combined thickness of the basal plane and the alkyl chains. No measurable dc conductance is obtained for anneal temperature below 180°C, which suggests the film conductivity less than 1×10-1 S cm-1. The sp 2 fraction of carbon atoms gives the fraction of carbons connected into the π-electron network responsible for the electronic and optical properties of the nanosheets. It is also found that mobile charge carriers are field-induced and confined on the most extended sections of these graphenites.|
|Source Title:||Advanced Materials|
|Appears in Collections:||Staff Publications|
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