TY - GEN
T1 - Deposition and characterization of layer-by-layer nano self-assembled carbon nanotube multilayer thin films
AU - Xue, Wei
AU - Cui, Tianhong
PY - 2007/8/28
Y1 - 2007/8/28
N2 - We present a simple, effective, and accurate method to grow single-walled carbon nanotube (SWNT) multilayer thin films with layer-by-layer (LbL) nano self-assembly. The thin film is assembled on the substrate by alternate adsorption of SWNTs and poly(dimethyldiallylammonium chloride) (PDDA). Scanning electron microscope (SEM) inspection shows that the SWNT multilayer is formed with a dense network of nanotube bundles. The average thickness of a single (PDDA/SWNT) bi-layer is measured as 76 Å. The volume and mass ratios of SWNTs in the multilayer are calculated as 63.2% and 75%, respectively. With nanoindentation measurement, the Young's modulus of the SWNT thin film is approximately 17 GPa. The electro-thermal properties of the SWNT multilayer are studied with current-voltage (I-V), four-point probe, and rapid thermal annealing (RTA) techniques. The conductance of the SWNT thin film at 300°C is measured as 2.29 mS, which is 50 times higher than that at room temperature (0.045 mS).
AB - We present a simple, effective, and accurate method to grow single-walled carbon nanotube (SWNT) multilayer thin films with layer-by-layer (LbL) nano self-assembly. The thin film is assembled on the substrate by alternate adsorption of SWNTs and poly(dimethyldiallylammonium chloride) (PDDA). Scanning electron microscope (SEM) inspection shows that the SWNT multilayer is formed with a dense network of nanotube bundles. The average thickness of a single (PDDA/SWNT) bi-layer is measured as 76 Å. The volume and mass ratios of SWNTs in the multilayer are calculated as 63.2% and 75%, respectively. With nanoindentation measurement, the Young's modulus of the SWNT thin film is approximately 17 GPa. The electro-thermal properties of the SWNT multilayer are studied with current-voltage (I-V), four-point probe, and rapid thermal annealing (RTA) techniques. The conductance of the SWNT thin film at 300°C is measured as 2.29 mS, which is 50 times higher than that at room temperature (0.045 mS).
KW - Carbon nanotubes (CNTs)
KW - Characterization
KW - Layer-by-layer (LbL) nano self-assembly
KW - Multilayer
UR - http://www.scopus.com/inward/record.url?scp=34548140566&partnerID=8YFLogxK
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U2 - 10.1109/NEMS.2007.352038
DO - 10.1109/NEMS.2007.352038
M3 - Conference contribution
AN - SCOPUS:34548140566
SN - 1424406102
SN - 9781424406104
T3 - Proceedings of the 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007
SP - 371
EP - 376
BT - Proceedings of the 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007
T2 - 2007 2nd IEEE International Conference on Nano/Micro Engineered and Molecular Systems, IEEE NEMS 2007
Y2 - 16 January 2007 through 19 January 2007
ER -