skip to primary navigationskip to content

Cambridge Graphene Centre

Research Centre on Graphene, Layered Crystals and Hybrid Nanomaterials

Studying at Cambridge

 

Ink Lab

The Ink lab includes state-of-the-art printing (inkjet, gravure, flexo, screen, 3D) and coating (spray, blade) techniques as well as equipment for advanced ink characterization.

 

For access to the lab, or for any general training, please contact the lab leader Dr Konstantinos Dimos, or their deputy Dr Bin Bao. For training on any of the equipment, please contact the Principal User or their deputy for the listed equipment.

While there is a range of devices in the Ink Laboratory, several of them require booking before use. The booking system can be found here.

 


Discovery Hybrid Rheometer HR-1

The Discovery Hybrid Rheometer is a rotational rheometer which uses the parallel plate method to measure the viscosity and viscoelastic properties of liquids or soft solids.

It combines a patented advanced drag cup motor, a second generation magnetic bearing, force rebalance transducer (FRT), and the new patent-pending True Position Sensor (TPS) in a single-head Hybrid rheometer. The DHR has unprecedented performance specification and delivers unsurpassed direct strain control, direct stress control, and normal force measurement accuracy. The DHR features all popular TA innovations including patented Smart SwapTM geometries and the widest range of Smart Swap temperature systems and accessories commercially available. The result is the most advanced, versatile rheometer platform imaginable.

The HR-1 is a rugged, accurate, field-proven rheometer. The HR-1 shares the cutting-edge technology of the Discovery Hybrid Rheometer family in a platform that is ideal for production control, asphalt manufacture, and a wide range of general measurements of viscosity and viscoelasticity

 


Testacolor 171

The testacolor 171 is an advanced printing system which enables the accurate single and multilayer printing of functional inks on flexible substrates. It includes exchangeable modules for gravure, flexo, screen printing.

Advanced printing/coating system enabling accurate single and multilayer printing/coating of functional inks on flexible substrates. Designed to explore various possibilities and combinations of coating and printing with a precision of <20 µm in one machine. Easily and rapid exchangeable modules. Optical alignment system (optional). Measuring software, low ink consumption, 2 ml is sufficient for reproducible print (gravure/flexo). Customized printing forms. Chambered and open doctor blades.


Ceradrop Super-Inkjet Printer X-Serie

CeraPrinter X-Serie is a TurnKey Materials Deposition Inkjet tool for process development in Printed Electronics and Smart 3D Printing. Thanks to its patented rotative head-holder “plug and play”, full curing area, in-situ characterisation devices and exclusive software suite, CeraPrinter X-Serie is a perfect “all inclusive” tool to enable advanced inkjet process development.

Substrate up to 305 mm x 305 mm with thickness up to 10mm
High accuracy five axis with motorised adjustable printing resolution, substrate alignment (+/-2 µm) and nozzles self calibration (< +/-3 µm)
Up to three different print-heads (more on request) to deposit aqueous, biologic, solvent and UV based inks
Able to print in Raster-Scan Mode (X or Y), Vector Mode (XY) and Single Pass (X or Y)


http://www.ceradrop.com/en/products/x-serie/


Climatic Chamber

Reproducible temperature and climate tests can be performed directly at your workplace. This is possible with the WTL and WKL chambers of Weiss. This series was specifically developed for use in laboratories. Compact dimensions – considerable intrinsic values.

  • Control and program control Simpac* with program storage for a max. of 100 programs
  • 3.5″ TFT-colour touch panel with Ethernet interface for communication with an on-site computer system
  • USB interface for documentation of measuring data via USB stick
  • large observation window and illuminated test space
  • high-quality double seals
  • 50mm access port
  • upper and lower temperature, specimen protection according to EN 60519-2 (1993) adjustable, with separate sensor

CMP

Principal User: Dr Antonio Lombardo
Deputy:

Logitech’s CMP system offers nanometer level metarial removal capabilities on either individual die or wafers up to 200mm diameter. 

  • Silicon wafer CMP
  • Global CMP of III-V Compound Semiconductor
  • Global CMP of brittle, friable IR material substrates
  • Global CMP of Sapphire, Gallium Nitride & Silicon Carbide substrates
  • Reclamation of EPI ready substrates
  • Final Stage thinning of SOS & SOI wafers to below 20 microns
  • Device delayering for reverse engineering of FA applications

Contact angle

 
Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


Dimatix inkjet printer

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 

The DMP-2850 allows the deposition of fluidic materials on an 8x11 inch or A4 substrate, utilizing a disposable piezo inkjet cartridge. This printer can create and define patterns over an area of about 200 x 300 mm and handle substrates up to 25 mm thick with an adjustable Z height. The temperature of the vacuum platen, which secures the substrate in place, can be adjusted up to 60°C. The DMP-2850 offers a variety of patterns using a pattern editor program. Additionally, a waveform editor and a drop-watch camera system allows manipulation of the electronic pulses to the piezo jetting device for optimization of the drop characteristics as it is ejected from the nozzle. This system enables easy printing of structures and samples for process verification and prototype creation.

  • Provides substrate rotation alignment using reference marks
  • Allows positioning of the print origin to match substrate placement
  • Provides measurement of features and locations
  • Provides inspection and image capture of printed pattern or drops
  • Provides cartridge alignment when using multiple cartridges
  • Allows matching drop placement to previously patterned substrate

Extruder


Principal User: Dr Stephen Hodge

 


FDM 3D printer - CubeX Duo

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


Flexo printer

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


Gas characterisation system

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 

The system provides:

  • 3 mass flow controllers: 2 air (to give dry and wet air) and 1 gas, with a valve system to distribute gas mixture flow.
  • a thermoregulated humidifier, to provide 100% wet mixture.
  • a thermoregulated condenser to eliminate extra humidity.
  • This allows maximum flexibility on preparing gas flows at a given concentration, humidity and temperature.

With these parameters , the control program provides complete automatic sequences to verify all test in conformity with CEI norms. Computer Controlled Mass Spectrometer: Complete feedback on gas concentration is obtained by a computer-controlled mass spectrometer. Software PPT430 allows constant monitoring of cell contents, showing actual system concentration of gas. It is also possible to log data on disk , filling in reports on system activity. A special Close Source allows good readings even at low concentrations (a few PPM) of gas mixture (like CO, CH4, C4H10, and so on).

 

  • Three independent test cells, each with its own sensors to monitor constantly pressure, temperature, relative humidity and flow speed.
  • Thermal regulated chamber allows an accurate setting of temperature.
  • Microprocessor program is used to control every valve and to calculate gas flows and gas mixtures at desired concentration, humidity and temperature.
  • Total control of dry and wet flows permits to obtain specified relative humidity value.
  • Mass spectrometer to monitor actual gas concentrations.

Inkjet 3D printer - Project 3500

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 

 


Mechanical Saw

Principal User: Dr Antonio Lombardo

Nikon large sample microscope

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


Ozone Cleaner

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


Screen printer

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


SCS spray coater

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 


Sonoplotter - GIX Microplotter

Principal user: Dr Konstantinos Dimos

Deputy: Dr Bin Bao 

 

When in the Ink laboratory, please follow the local rules, downloadable here.

 

Photos by Samuel Curtis Photography