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Home › Facilities › Soft Matter Laboratory

Soft Matter Laboratory

Nuclear Magnetic Resonance – NMR Lab
Electro optical characterization
X-Ray Diffractometry and Polarized Optical Microscopy

Nuclear Magnetic Resonance – NMR Lab

Responsible:
NMR Relaxometry, Pedro Sebastião ext: 3210
NMR Spectroscopy, João L. M. Figueirinhas ext: 3359

Description:

The NMR Lab is specially prepared for studies of spectroscopy and relaxometry of complex fluids. Liquid crystals, ionic liquids, polymers, dendrimers, and other complex systems are examples of systems usually studied in this laboratory.

The laboratory is integrated in the Portuguese Nuclear Magnetic Resonance Network.

Equipment:

  • Conventional solid-state NMR spectrometer, Bruker Avance II 300, Avance II Console (6 MHz – 365MHz)
  • KEA2, 5-100 MHz Magritek NMR console
  • Bruker Widebore, Ultra-shielded 7.1 Tesla Superconducting Magnet
  • Bruker BE-30, 0-2.4 Tesla Electromagnet (used with Bruker Avance II Console)
  • Fast Field Cycling NMR spectrometer for proton relaxation measurements in the Larmor frequency range of 5kHz – 9 MHz.

Location: IST-Alameda, Complexo Interdisciplinar, floor -2

Access conditions: Within collaborative research work. Contact the scientific researcher in charge.

Conventional 300MHz solid state NMR spectrometer

Conventional 300MHz solid state NMR spectrometer

Variable fiel 0.2 T - 2.5 T solid state NMR spectometer magnet

Variable fiel 0.2 T – 2.5 T solid state NMR spectometer magnet

Fast Field Cycling NMR spectrometer for proton relaxation measurements in a very wide magnetic field range (10-4 T – 0.2 T)

Fast Field Cycling NMR spectrometer for proton relaxation measurements in a very wide magnetic field range (10-4 T – 0.2 T)



Electro-optical characterization - Development and measurement of physical properties of novel liquid crystal cells for LC displays (LCD technology).

Electro-optical characterization – Development and measurement of physical properties of novel liquid crystal cells for LC displays (LCD technology).

Electro-optical characterization

Responsible and contacts: João Figueirinhas, ext: 3359

Description:

Electro-optical cells containing LC in different conditions of confinement in a variety of matrices (e.g. PDLC systems of different types, cellulosic films, …) are studied in this lab. Besides the investigation of fundamental physical properties of these systems (e.g. refractive indices and visco-elastic parameters) most of the undertaken research have in mind the development and optimization of devices with potential technological applications: LC displays, electrically driven shutters, light valves.

The electro-optical setup is composed of an optical bench equipped with a He-Ne laser and computer controlled systems associated with a function generator, voltage amplifier, digital scope, light detectors and temperature variation of sample cells.

Location: IST-Alameda, Complexo Interdisciplinar, floor -2

Access conditions: Within collaborative research work. Contact the scientific researcher in charge.


X-Ray Diffractometry and Polarized Optical Microscopy

Responsible: Carlos Cruz

Contact persons: Carlos Cruz, ext: 3209
                             João Figueirinhas, ext: 3359

Description:

This laboratory includes basic facilities for sample preparation, polarising optical microscopy observations and X-Ray diffractometry of powder samples. The X-ray diffractometer is equipped with an INEL gas curved counter and a temperature control system particularly useful for the study of phase transitions and structural characterization of liquid crystals.

Location: IST-Alameda, Complexo Interdisciplinar, floor -2.

Access conditions: Within collaborative research work. Contact the scientific researcher in charge.

X-ray diffractometer

X-ray diffractometer

Polarising Optical Microscope - Identification of Liquid Crystal Phases

Polarising Optical Microscope – Identification of Liquid Crystal Phases

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