LABORATORY OF INNOVATIVE MATERIALS AND ELEMENTS

In situ doping and surface modification of carbon materials, with particular emphasis on nano-diamond layers

Chemical Vapor Deposition

The primary technology of diamond growth in LIME which overcome equilibrium limitation and allow to strictly control processes. AX 5200S SEKI Co.

Physical Vapor Deposition

Technology that enables the creation of multi-layered structures with metals. PVD 75 System Kurt Lesker Co.

Laboratory furnace

The furnace with SiC rod heating (RHTC 80-450 with vacuum flanges, Nabertherm) is used for high-temperature annealing of the diamond particles. Thermal treatment of the nanodiamonds is an indispensable element of many processes of functionalization (e.g., oxidation, carboxylation).

Electrical measurement

Complex measuring station for determining electrical properties of materials include:
- LNP96 COOLING System with Keithley laboratory multimeter.
- Signatone S302 4 point probe system
- Keithley 2450 SourceMeter Unit
- Keysight E4990A Impedance Analyzer
- Four point probe system installed in FormFactor ShieldEnclosure for EMI-shielded, vibration and light isolated enviroment

Wire bonder

TBD

Low-temperature measurements

LNP96 COOLING System allows to measure electrical parameters of samples in size up to 10x10 mm in wide range of temperature: from -196°C to +500°C

2D transfer station

TBD

Glove box

Inert gas atmosphere in isolated environment allows us to work with highly reactive substances. MBraun 200B Glove Chamber

High energy ball mill

The ball mill (Pulverisette 7 classic line, Fritsch) enables to crush diamonds into powders with a final fineness below 1 μm as a result of collision with grinding balls. Wet grinding in a suitably reactive solvent might allow for a simultaneous disaggregation and functionalization of the diamond particles.

Seeding station

Spin coater + two ultrasonic baths.
TBD

Ultrasonic homogenizer

The ultrasonic homogenizer (Sonopuls HD 4200, Bandelin) is used for disaggregation of the diamond particles with high-performance, 20kHz ultrasound. Depending on the choice of the solvent and additional, chemically active compounds, the process of decreasing the size of the diamond particles may be paired with their functionalization.

The refrigerated – heating circulator (CORIO CP-200F, Julabo) is used to control the temperature throughout disaggregation of the diamond particles. Avoids the effect of overheating and excessive evaporation of the solvent.particles may be paired with their functionalization.

Plasma cleaners

Oxygen 13.56 MHz

The plasma cleaner (ZEPTO, diener) enables cleaning and termination of diamond surfaces. The 2.6 liter chamber allows for oxygen modification of the diamond surface. The generated plasma RF (13.56 MHz) changes the hydrophobicity of the diamonds and sterilizes them.

TBD

Nanoparticles analysis

The particle analyser (Zetasizer Nano ZS, Malvern Panalytical) utilizes optical measurement techniques based on light scattering to measure a size distribution (in a range of 0.3 nm to 10 µm), and a zeta potential (in a range of -500 mV to 500 mV) of the diamond particles suspended in liquids. Both quantities are crucial in production, disaggregation, and functionalization of the nanodiamonds. The measurement of the size distribution enables to quickly control parameters and verify results of the ball milling and/or the ultrasonic treatment, while the value of the zeta potential indicates the colloidal stability of the particles in a specific dispersion medium, and provides better understanding of the processes of charge transfer occurring due to the modification of the nanodiamonds’ surface.

Potentiostat/Galvanostat Biologic WP-300 with FRA Module and Faradaic chamber

Deionized water

Hydrolab HPL Smart system for water deionization.
TBD

pH meter

TBD

3D Printing

Three-dimensional printing station allows for using different technologies: Fused Deposition Modelling (FDM), Stereolitography (SLA).
Different materials are used in laboratory, e.g.: polylactid acid (PLA), acrylonitrile butadiene styrene (ABS), polyvinyl alcohol (PVA), photopolymer resins.