Crystal Growth Furnaces

Methods:​

• Bridgman
• Floating Zone
• Micro-pulling-down

Gloveboxes / Powder-Pressing

tba.

Kontakt

alexander.kunzmann@uni-due.de

Cutting Machine

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• wet cutting, automated
• max. sample size of Ø75 mm

Diamond Wire Saw

• cutting variety of materials such as glass, hard rubber, ceramics, plastics, metals, and quartz
• 0.1 mm to 0.35mm cutting gap. Cutting width with 0.01 mm accuracy

Grinding and Polishing

• SiC grinding paper up to 4000#

• diamand suspension and SiO2 treatment for ultra-fine polished surfaces

Autoclave

• Suitable for hydrogen loading and other reactive gases
• High-pressure, high-temperature reactor (500 bar / 500 °C)
• 200 ml vessel, electric heating with water cooling

Minilamp Annealer

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• thermal processing device to rapidly heat and anneal thin films, wafers and small samples using infrared lamps
• high-vacuum or gas-flow atmosphere
• room temperature up to 1200 °C
• eg. dopant activity, crystal defect repair and surface modification

Kontakt

klara.luenser@uni-due.de

Dynacool - PPMS

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Measurement options: Electrical transport (resistance, magnetoresistance, Hall effect); Thermal transport (thermal conductivity, Seebeck effect)

• temperature range: 1.8 K - 400 K
• magnetic field range: 9 T
• horizontal rotator option
• high vacuum chamber (below 10^-4 Torr)
• bulk, thin films, nanogranular materials and others

Differential Scanning Calorimetry (DSC)

• investigation of thermal properties like phase transistions or melting points
• determination of specific heat capacity
• from -180 °C to 500 °C
• heating/cooling rates: 0.001 to 200 K/min

ZEM-3

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• simultaneous measurement of Seebeck coefficient and electrical resistivity (4-probe)
• 50 °C to 1000 °C
• low-pressure helium atmosphere
• diameter or side length 2 - 4 mm, length 5 - 22 mm
• bulk and thin film

Laser-Flash-Analysis (LFA)

• Measurement of thermal diffusivity and thermal conductivity
• Temperature range: -125 °C to 1100 °C, various atmospheres
• Suitable for solids, coatings and thin films

Usage in cooperation with Prof. Roland Schmechel 

Potentiostat

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• electrochemical Analysis

• output voltage ± 20 V, maximum current ± 400 mA

• with second sample holder; constructed for smaller sample diameters from 6 to 16 mm

Kontakt

sepideh.izadi@uni-due.de