Methods of Samples Synthesis

Our group uses different equipment for the synthesis and characterisation of our samples. These instruments, which are located in the laboratories of the MGI building, with the respective characteristics are listed below.
High-temperature furnace for the CVT sample synthesis
  • Two zones
  • Thermocouple: K-type
  • Maximal temperature: 1200°C
  • Rated power: 3 kW


Vacuum sealing machine Partulab MRVS03A600
  • Rotating speed: 0 – 30 rpm
  • Quartz pipe outer diameter: 13 mm, 15 mm, 20 mm, 45 mm
  • Tube wall thickness: ≤ 2 mm
  • Vacuum level: 0.1 MPa – 10-5 Pa


Desktop X-ray Diffractometer Bruker D2 phaser
  • X-ray line Cu Kα (1.54178 Å)
  • Goniometer: θ – 2θ
  • Angular accuracy: better than 0.02°
  • Detector: SSD160-2, LYNXEYE-2


Scanning Electron Microscope HITACHI FlexSEM 1000 II
  • Acceleration voltage: 0.3 kV – 20 kV
  • Resolution: 4 nm (@ 20kV, high vacuum mode), 15 nm (@ 1kV, high vacuum mode)
  • Vacuum level: 6 – 100 Pa
  • Electron gun: Pre-centered cartridge filament
  • Sample stage: motorized, x: 50 mm, y: 40 mm, z: 15 mm, tilt: -15 – 90°, azimuth: 360°
  • Maximum sample size: diameter ≤ 80 mm, height ≤ 40 mm


Scanning Electron Microscope ZEISS Sigma500
  • Acceleration voltage: 0.3 kV – 20 kV
  • Image scanning resolution: 0.8 nm (@ 15kV), 1.6 nm (@ 1kV)
  • Sample current range: 40 pA – 20 nA
  • Magnification: 10x – 1000000x
  • Electron emission source: Schottky field emission (thermal field emission)
  • Detector: anngular secondary electron detector in mirror, secondary electron detector in sample chamber, backscattering electron detector, infrared CCD camera in sample chamber


Raman / Photoluminescent / Transient Life Spectrometer Nanofinder 30A
  • Excitation light sources: lasers (442 nm, 532 nm, 785 nm), Picosec pulse diode laser (635 nm), one coherent femtosecond laser (400 – 900 nm)
  • Raman shift range: 50 – 4000 cm-1
  • Detectors: Cooled CCD detector (400 – 900 nm), Cooled InGaAs Detector (900 – 1400 nm), APD (350 – 900 nm), NIR-PMT/TSCPC(900 – 1700 nm)
  • Temperature range: 5 K – 300 K


Glove Box MIKROUNA UNIVERSAL
  • Controller: Siemens PLC
  • Water content: < 0.1 ppm, Oxygen content: < 0.1 ppm
  • Vacuum pump brand: Edwards, Extreme vacuum: 2×10-3 mbar
  • Water analyzer brand: Xentaur, Range: 0.01 – 23000 ppm
  • Oxygen anayzer brand: GE, Range can be set to 0 – 10, 100, 1000, 10000, 250000 ppm


UV-VIS, NIR Spectrometer PERKIN-ELMER, Lambda
  • Wavelength coverage:190 – 3300 nm
  • Wavelength accuracy: UV-Vis < 0.02 nm, NIR < 0.08 nm