-
3DCNT Team receive the UMich Robert M. Caddell Memorial Award
September 2010: Our 3DCNT team will receive the UMich Robert M. Caddell Memorial Award for Outstanding Research in Materials and Manufacturing.
-
Diverse 3D microarchitectures made by capillary forming of CNT
M. De Volder, S. Tawfick, S.J. Park, D. Copic, Z. Zhao, W. Lu, A.J. Hart. Diverse 3D microarchitectures made by capillary forming of carbon nanotubes.Advanced Materials 22:4384-4389, 2010.
-
Sam Tawfick Receives Azarkhin Scholarship
Sam Tawfick receives the Azarkhin Scholarship for outstanding Ph.D. research in applied mechanics at UMich!
-
Electrically addressable hybrid architectures of zinc oxide nanowires grown on aligned carbon nanotubes
J.G. Ok, S. Tawfick, K.A. Juggernauth, K. Sun, Y. Zhang, A.J. Hart. Advanced Functional Materials 20:2470-2480, 2010. [http://dx.doi.org/10.1002/adfm.201000249] [PDF] The fabrication and characterization of hybrid architectures of ZnO nanowires (ZNWs) grown on organized carbon nanotubes (CNTs), by a two-step chemical vapor deposition (CVD) process involving CNT growth from a hydrocarbon source followed by ZNW…
-
Megan Roberts receives NSF Fellowship 2010
April 2010: Megan Roberts receives a 2010 NSF Graduate Research Fellowship, and Sei Jin Park receives the William Mirsky Scholarship (outstanding master’s research in ME at UMich)!
-
Measuring the lengthening kinetics of vertically aligned nanostructures by spatiotemporal correlation of height and orientation
E.R. Meshot*, M. Bedewy* (*equal contribution), K.M. Lyons, A.R. Woll, K.A. Juggernauth, S. Tawfick, A.J. Hart. Nanoscale 2:896-900, 2010. [http://dx.doi.org/10.1039/b9nr00343f] [PDF] Owing to their inherent tortuosity, the collective height of vertically aligned nanostructures does not equal the average length of the individual constituent nanostructures, and therefore temporal height measurement is not an accurate measure of…
-
Ethanol-promoted high-yield growth of few-walled carbon nanotubes.
Y. Zhang, J. Gregoire, R.B. van Dover, A.J. Hart. Journal of Physical Chemistry C 114(14):6389-6395, 2010. [http://dx.doi.org/10.1021/jp100358j] [PDF] We report the use of a small concentration of ethanol in addition to ethylene as the carbon source for growth of dense vertically aligned “forests” of few-walled carbon nanotubes (CNTs). Through a detailed comparison of CNTs…
-
Nanocomposite microstructures with tunable mechanical and chemical properties
S. Tawfick, X. Deng, A.J. Hart, J. Lahann. Physical Chemistry Chemical Physics 12:4446-4451, 2010. [http://dx.doi.org/10.1039/c000304m] [PDF] We report a two-step chemical vapor deposition (CVD) method for fabrication of hierarchical polymer-coated carbon nanotube (CNT) microstructures having tunable mechanical properties and accessible chemical functionality. Diverse geometries of vertically aligned CNTs were grown from lithographically patterned catalyst…
-
Self-similar organization of arrays of individual carbon nanotubes and carbon nanotube micropillars
M. De Volder, D.O. Vidaud, E.R. Meshot, S. Tawfick, A.J. Hart. Microelectronic Engineering 87(5-8):1233-1238, 2010. [http://dx.doi.org/10.1016/j.mee.2009.11.139] [PDF] It is well-known that carbon nanotube (CNT) growth from a dense arrangement of catalyst nanoparticles creates a vertically aligned CNT forest. CNT forests offer attractive anisotropic mechanical, thermal, and electrical properties, and their anisotropic structure is enabled…
-
Jong Ok wins 2nd prize Nanomaterials UM Grad Symposium
November 2009: Jong Ok wins second prize in the Nanomaterials category at the UM Engineering Graduate Symposium, for his talk “Electrically addressable hybrid architectures of zinc oxide nanowires grown on aligned carbon nanotubes”.