Transparent, Flexible Conducting Hybrid Multilayer Thin Films of Multiwalled Carbon Nanotubes with Graphene Nanosheets

We developed a simple, versatile method of integrating hybrid thin films of reduced graphene oxide (RGO) nanosheets with multiwalled carbon nanotubes (MWNTs) via LbL assembly. This approach involves the electrostatic interactions of two oppositely charged suspensions of the RGO nanosheet with MWNTs....

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Bibliographic Details
Published in:ACS nano 2010-07, Vol.4 (7), p.3861-3868
Main Authors: Hong, Tae-Keun, Lee, Dong Wook, Choi, Hyun Jung, Shin, Hyeon Suk, Kim, Byeong-Su
Format: Article
Language:English
Subjects:
Electric Conductivity
Electric Impedance
Graphite - chemistry
Nanotechnology - methods
Nanotubes, Carbon - chemistry
Photoelectron Spectroscopy
Static Electricity
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Summary:We developed a simple, versatile method of integrating hybrid thin films of reduced graphene oxide (RGO) nanosheets with multiwalled carbon nanotubes (MWNTs) via LbL assembly. This approach involves the electrostatic interactions of two oppositely charged suspensions of the RGO nanosheet with MWNTs. This method affords a hybrid multilayer of graphenes with excellent control over the optical and electrical properties. Moreover, the hybrid multilayer exhibits a significant increase of electronic conductivity after the thermal treatment, producing transparent and conducting thin films possessing a sheet resistance of 8 kΩ/sq with a transmittance of 81%. By taking advantage of the conducting network structure of MWNTs, which provides an additional flexibility and mechanical stability of RGO nanosheets, we demonstrate the potential application of hybrid graphene multilayer as a highly flexible and transparent electrode. Because of the highly versatile and tunable properties of LbL-assembled thin films, we anticipate that the general concept presented here offers a unique potential platform for integrating active carbon nanomaterials for advanced electronic, energy, and sensor applications.
ISSN:1936-0851
1936-086X
DOI:10.1021/nn100897g