Materials Growth Equipment: Nanoparticles, Films and Clusters
Ultra High Vacuum Deposition System at Victoria University
This Ultra High Vacuum system (UHV) with it’s load-lock and evaporating chamber, is currently designed for growing single crystalline films of rare-earth nitride and silicide materials. But in practice, it can be used for any materials to grow monocrystalline, polycrystalline or amorphous films. It is equipped with an ionising gas source to introduce nitrogen or other gases into the chamber and evaporating crucibles. The system includes an electron gun, for depositing metal atoms onto a substrate heated up to 950°C. A second UHV evaporator system is also available in the lab.
In this lab, metal nanoparticles such as gold, silver and palladium are grown in solution. A unique tool in New Zealand, the nanoparticle size analyser and Zetasizer are able to measure nanoparticle sizes from 0.6 nm up to 0.2 microns and the surface charge of any sized particle that can be suspended in liquid. It is a well-adapted tool for quantum dots in solution. The set-up also includes a Vibrating Blade Viscometer to measure the viscosity of solutions. Another particle size analyser is also available and provides measurement for larger particle sizes from 0.02 micrometers up to 2 millimeters.
Please contact Jim Johnston for more information.
Atomic Cluster lab at the University of Canterbury
The Atomic Cluster Lab is devoted to the deposition and characterization of nanometre scale clusters and to developing ways of building nano-electronic devices from these clusters. The lab has several pieces of equipment that allow deposition and self assembly of clusters using several high vacuum chambers equipped with mass selection systems, which allow the deposition and self-assembly of clusters. Low temperature electrical and magnetic measurements, high vacuum electron diffraction apparatus and a scanning tunneling microscope are among a large range of tools available to characterize these atomic clusters.
Please contact Simon Brown for more information.
Electrochemistry and Surface Chemistry Lab at the University of Canterbury
The Electrochemistry and Surface Chemistry Lab has two high performance Eco-Chemie Autolab Potentiostats for a wide variety of electrochemical applications. The potentiostats are currently being used across the University of Canterbury by MacDiarmid students for bio and chemical sensor applications, characterization of thin films, studying interfacial properties of solid surfaces, and for electrocatalysis. The prinicipal tools are two PGSTAT 302 and 302N potentiostats (using GPES v 4.9 software), and a High Temperature Furnace (< 1200° C) used for CVD growth of nanotubes and fabrication of pyrolysed photoresist film (PPF) electrodes. We also have access to a Wet Chemistry Lab, a Contact Angle Goniometer (with Edmund Scientific Camera) and a range or other electrochemical apparatus (RDE, Low Current Module, and a collection of other potentiostats).
Please contact Alison Downard for more information.
Wet Chemistry and Catalysis Lab at the University of Canterbury
The Wet Chemistry, Nanofabrication and Catalysis lab in the Chemistry Department offers a wide range of equipment for fabrication of materials using liquid-phase synthesis, catalytic testing, nanoparticle and cluster analysis, and fabrication of carbon nanotubes and nanofibres. Excellent wet chemical lab facilities are available (Schlenk Lines, Dry Box, etc.). For catalysis experiments we have a Parr Reactor (high pressure vessel for hydrogenation reactions, rated up to 100 bar, mechanically stirred with PTFE liners, volume of 50 ml with a head space of 20ml), a Photocatalytic Reactor (0.5 kW Xe UV), and Ambient Pressure Catalytic Testing equipment. Among the nanofabrication facilities available we have a High Temperature Furnace (< 1200° C) which we primarily use for CVD growth of nanotubes (split, dual zone furnace with electronic flow controllers for up to 4 gases.). We have also recently obtained a Q-Nano device equipped with a Variable Pressure Module for nanoparticle characterisation. Note that access to GC-MS, GC-FID, AAS and ICP-MS instrumentation (for organic and inorganic solution characterisation) can be accessed to those outside the department by prior arrangement.
Please contact Vladimir Golovko for more information.
Soft Matter Lab at Victoria University
The lab contains 2 Langmuir troughs, used for forming monolayers of surfactants or other surface active molecules on an aqueous surface, the troughs are equipped with Brewster angle microscopy and the capability to measure surface potential. There are 2 rheometers (a control strain and a control stress) to study the flow of viscous solutions and materials. The rheometers can be used over a range of temperatures (~10-60°C), a variety of geometries (cone and plate, parallel plate and Couette) are also available. The lab is also equipped with an atomic force microscope (Veeco multimode system with air, fluid, tapping mode and electrochemical cells), an homogenizer and microfluidic system for preparing emulsions.
Please contact Kathryn McGrath for more information
Nano-Carbon group at UW
While the group has a strong experience in compound semiconductor nanowires and graphene nanostructures, it is mainly involved in the fabrication and characterisations of carbon nanotube network for electronic and optoelectronic applications. The goal is to study the relationship between morphology and the optical and electric properties of the carbon nanotubes. The nanostrucutres may be fabricated from vapour or solution synthesis using non-volatile or volatile solvents by drop-casting and air-brushing. The lab contains a different set of equipement such as furnace for annealing, ultrasonic bath, resistivity and photoconductivity setup for measurements down to 4k. Another resistivity setup going down to ~30K is available
Please contact Kathryn McGrath for more information