Posts Tagged ‘Nanomaterials’

Karlheinz Strobl, Mathieu Monville, Riju Singhal, Samuel Wright, and Leonard Rosenbaum
CVD Equipment Corporation, 355 S. Technology Drive, Central Islip, New York 11722, USA

Abstract

Graphene and other 2D materials can be produced by chemical vapor deposition (CVD) processing.  CVD processing can also be used to manufacture many 1D nanomaterials such as carbon nanotubes and silicon nanowires as well as for a wide range of film depositions and other related surface modifications.  The related CVD substrates can be rigid or flexible, and can be in continuous rolls or discrete stacks.

Industrial CVD production

Mathieu R. Monville1, Kongara M. Reddy1, Riju Singhal1, Karlheinz Strobl1
1CVD Equipment Corporation, 355 South Technology Drive, Central Islip, NY 11722, USA

Introduction
The field of nanocarbon-based composite materials is naturally driving and stimulating applied research today because of the high potentialities offered by both nanotechnology and carbon: each nanocarbon species (nanotubes, nanocones, nanowalls, graphene and graphite nanoplatelets, fullerenes and carbon nanodots, etc.) presents its own specific physico-chemical properties and reacts and performs differently under the same conditions, thereby enabling the optimization of material properties for specific applications (energy storage, water

K. Strobl* , M. Monville*, S. Banerjee*, S. Chang*, C. Jayasinghe**, J. Sprengard**
*CVD Equipment Corporation, 355 South Technology Drive, Central Islip, NY 11722, USA
**General Nano, 1776 Mentor Ave, Ste. 170, Cincinnati, OH 45212, USA

ABSTRACT

Electromagnetic interference (EMI) shielding relates to the property of a material that acts as a barrier to the penetration of electromagnetic radiations. EMI shielding plays an important role in fields of application where electromagnetic waves, especially at high frequencies, can interfere with electronics. Applications of EMI shielding span from cellular phones and computers

Karlheinz Strobl, Riju Singhal, Mathieu Monville
CVD Equipment Corporation, 355 S. Technology Drive, Central Islip, New York 11722, USA

Abstract

Graphene, in its one atom thick carbon sheet form, is a special 2 dimensional nanomaterial that bridges the chemical and physical worlds. On the one hand, graphene can be seen as a chemical, a gigantic two-dimensional monomer, allowing organic chemistry to investigate its use as a reactive platform and composite and polymer science to investigate its functionalized forms into dispersed, percolated or continuous architectures, ranging from randomly to highly

Karlheinz Strobl1, Mathieu R. Monville1, Subarna Banerjee1, Shihsheng Chang1
1CVD Equipment Corporation, 355 S. Technology Drive, Central Islip, New York 11722, USA

Abstract

Our standard large area (> m2) CNTSheet™ manufacturing process produces anisotropic porous carbon nanotube sheets in the 10-200μm thickness range. They have electrical and thermal properties that are uniform in the “X” and “Y” direction (sheet plane) and are 1-3 orders of magnitude lower in the “Z” direction. This manufacturing platform, using mm long VASWCNT’s or VAMWCNT’s as the primary mechanically interlocking fiber material, allows

Mathieu Monville¹*, Alexander Rzhevskii², Subarna Banerjee¹, Karlheinz Strobl¹
¹CVD Equipment Corporation, 1860 Smithtown Avenue, Ronkonkoma, NY 11779, USA
²Thermo Fisher Scientific, 800 Middlesex Turnpike, Billerica, MA 01821, USA

Abstract

Raman spectroscopy is commonly used as a standard quality analysis technique for graphene characterization since it allows unambiguous, high-throughput, nondestructive identification of the number of graphene layers. It also allows to qualify defect, doping, strain, disorder and chemical modifications levels, as well as to locate grain boundaries of graphene. Many of these quality parameters need to be monitored during process and/or

Elena Polyakova1, Daniil Stolyarov1, Wei Zhang2, Karlheinz Strobl2
1Graphene Laboratories Inc., 5 Archstone Cir. Suite 202, Reading, MA 01867
2CVD Equipment Corporation, 1860 Smithtown Ave, Ronkonkoma, NY 11779

Abstract

Continuous interest in Graphene materials has been recently reinforced with the awarding of the Nobel Prize in Physics, 2010. Graphene materials are considered for use in a wide variety of practical applications including electronics, solar cells, MEMS and NEMS, as well as chemical and biological sensors. Our joined team has successfully grown graphene films on Ni and Cu using Chemical Vapor

Wei Zhang1, Karlheinz Strobl1, and Yi Tu1
1CVD Equipment Corporation, 1860 Smithtown Avenue, Ronkonkoma, NY 11779

Abstract

Zinc oxide is a wide band gap material with excellent semiconducting, photonic and piezoelectric properties. In the past ten years zinc oxide nano-structures such as nanowires and nano-rods have received great interest due to their unique dimensional and material properties in the area of photonics, electronics, mechanics, energy recovery, etc. In this poster we report the manufacturing process of a new shape, i.e. hollow hexagonal ZnO nano-cones. We grew them on different kinds of substrate using a low pressure,