Spectroscopy

CQFMResponsible: Ana Maria Rego | Ana Maria Ferraria

Contacts
Ana Maria Rego
ext.: 3255/7
e-mail: amrego@tecnico.ulisboa.pt

Ana Maria Ferraria
ext.: 3258/7
e-mail: ana.ferraria@tecnico.ulisboa.pt

Access conditions

Contact the responsible

Location

Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, CQFM - Molecular Physic and Chemistry Centre, Interdisciplinary Complex, 5th floor



High Resolution Electron Energy Loss Spectroscopy (1)

Applications

Surface analysis technique to study the interaction of electrons with the surface (~1nm depth), which lose their energy exciting vibrational and electronic states and promoting ionizations Requires conducting or semi-conducting samples


X-ray Photoelectron Spectroscopy (2)

Kratos XSAM800

Applications

Study the elemental chemical composition of the surfaces till 10 nm depth Any solid surface (even powder-like samples) can be analysed as long as the vapour tension of all its components can withstand UHV

Equipment (1) and (2)

Ultra-high-vacuum (UHV ~10-9 mbar)

Sample size:

10 to 15 mm wide

Thickness from a few microns to 5 mm




Responsible: Carlos Baleizão
Contacts
Carlos Baleizão
tel.: 218 419 206
e-mail: carlos.baleizao@tecnico.ulisboa.pt

Access conditions

Contact the responsible




Spectrofluorimeter

Horiba Jobin Yvon Fluorolog 3-22

Equipment

Thermostated Sample Holder

Solid Sample Holder

Dewar for phosphorescence measurements

Solid State IR detector (800-1550nm)

Flash Lamp

Polarizers

Applications

Measurement of excitation and emission fluorescence and phosphorescence spectra (including anisotropy) and determination of lifetimes longer than 1 microsecond



Spectrofluorimeter

Spex Fluorolog F112A

Equipment

450 W lamp

Double excitation and emission monochromators

Glan-Thompson polarisers for automated steady-state fluorescence anisotropy measurements

Thermostated sample holder with a Julabo F25 water bath circulation

Bio-Logic SFM-20 mixing device for stopped-flow kinetics

Applications

Performs steady-state fluorescence measurements



Spectrophotometer

Shimadzu UV-3101PC UV-vis-NIR

Equipment

Polarizers

Integrating sphere for measurement of opaque solid materials

Thermostated liquid sample holder (-20 to 90 ºC)



Spectrophotometer

Jasco V-660 UV-vis

Equipment

Programmable temperature control system (4 to 100ºC) fully integrated with the software




Responsible
: Luís Filipe Vieira Ferreira

Contacts
Luís Filipe Vieira Ferreira
tel.: 218 419 252
e-mail: luisferreira@ist.utl.pt

Access conditions

Contact the responsible



Diffuse Reflectance Laser Flash Photolysis and Transmission Laser Flash Photolysis

Equipment

Nd-YAG laser (10 to 1200 mJ/P) with Xe (450 W) and W QTH (250 W) lamps

Time resolved absorption spectra of excited states, with time resolution from ns to s

Application

Useful to study photochemical processes resulting from the adsorption of probes in nanocavities



Time-resolved FTIR

Varian 7000

Equipment

Nd-Yag laser at 10Hz



Spectrograph

ICCD Andor i-Star 720

Equipment

Spectral resolution from 200 to 1050 nm



InGaAs detector



Laser Induced Luminescence and Absolute ΦF’s



SpectraLab

Responsible: Luís Santos


Contact
tel.: 218 419 937
e-mail: luis.santos@tecnico.ulisboa.pt
Access conditions

Contact the responsible



Variable Angle Spectroscopic Ellipsometer (VASE)

Horiba Jobin-Yvon UVISEL

Equipment

Wavelength range: NIR to Visible

Films thickness range: 1 to 1000 nm


This equipment was purchased under the "Programa Nacional de Re-equipamento Científico da Fundação para a Ciência e a Tecnologia (project REEQ/293/CTM/ 2005). The Ellipsometer Laboratory is an IST/CQE infrastructure aimed at research and development in the area of materials engineering. The laboratory is open to all research centers, both from IST and other Universities, public and private institutions as well as industry. The ellipsometer is capable of measuring both the thickness and refractive index of films ~ 1- 1000 nm in thickness, throughout a continuous range of wavelengths between ~ 260 – 1700 nm. This instrument is capable of measuring the index and thickness not only of single layer films deposited on a suitable substrate, but also of multilayer film structures (yielding the index and thickness of each layer, through suitable modelling and fitting procedures), as well as bulk samples. 


Applications

Measurements of the thickness and the refractive index of single layer films, multilayer film structures (index and thickness of each layer, through suitable modelling and fitting procedures) and bulk samples

Areas: Microelectronics and semiconductor industries; Biology and membrane studies; Photovoltaic applications, Optical coatings; Polymer film industries

Location

Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Physics Building, floor -1, room 01-5.7


Metricon M-line spectrometer with optical loss measurement capability


This equipment was purchased under the Programa Nacional de Re-equipamento Científico da Fundação para a Ciência e a Tecnologia (project REEQ/293/CTM/ 2005). The M-Line equipment is an IST/CQE infrastructure aimed at research and development in the area of materials engineering. The Metricon M-Line spectrometer is a prim coupler (n < 1.9) instrument capable of measuring the thickness and the refractive index of dielectric and polymer films and bulk samples, using optical wave guiding techniques, at several wavelengths: 532, 633, 980 and 1550 nm



Fourier transform infrared spectrometer (FTIR)

Thermo Electron Corporation Nicolet 5700

Equipment

Wavelength range: Visible to FIR (250 000 to 50 cm-1)

Specular, diffuse and ATR reflection

This equipment was purchased under the "Programa Nacional de Re-equipamento Científico da Fundação para a Ciência e a Tecnologia (project REEQ/293/CTM/ 2005).
The FTIR Laboratory is an IST/CQE infrastructure aimed at research and development in the area of materials engineering.  The laboratory is open to all research centers, both from IST and other Universities, public and private institutions as well as industry. The Fourier transform infrared spectrometer (FTIR) is a flexible equipment that can be configured for multiple spectral ranges. It enables infrared spectroscopy in transmission and reflection (specular and diffuse) modes, operating between 25000-50 cm<sup>-1 (VIS+NIR+MIR+FIR).

Applications

Pharmaceutical and Environmental studies

Food analysis: additives, preservatives, colorants

Conservation and restauration of heritage: paintings, sculptures, ceramics, fossils, ivories

Forensic science: paints, textiles, cosmetics

Physiological samples (bones and hairs) and Geological samples

Multilayer compounds: polymers, paintings, films

Location

Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Physics Building, floor -1, room 01-5.7



Confocal Micro-Raman

LabRAM HR 800 Evolution (200 nm – 1600 nm), with a HeNe (633 nm) internal laser, and two external diode lasers (532 nm and 785 nm)

Equipment

Lasers: 532, 633 and 785 nm

This is a confocal high resolution micro-Raman spectrometer (800 mm focal length), with 3D mapping and autofocus capability (motorized XYZ stage), equipped with two motorized gratings (600 and 1800 gr/mm) and a Peltier cooled (-70º) CCD detector (1024x256 pixels). The equipment os eqquiped with an Olympus BXFM confocal microscope with 5x, 10x, 50x (LWD) and 100x visible objectives plus visible macro lens for liquids and polarization accessories and the Labspec 6 software suite with Multivariate Analysis Module and KnowItAll database licence.


Applications

Life Sciences: Drug/cell interactions, disease diagnosis, bone structure

Pharmaceuticals and Cosmetics: Polymorphic forms, crystallinity, contaminant identification

Geology and Mineralogy: Gemstone and mineral identification, inclusions

Carbon Materials: Purity of carbon nanotubes (CNTs), diamond like carbon (DLC) coatings

Semiconductors: Characterisation of intrinsic stress/strain, purity, Contaminations

Food analysis: additives, preservatives, colorants

Conservation and restauration of heritage: paintings, sculptures, ceramics, fossils, ivories

Forensic science: paints, textiles, cosmetics

Multilayer compounds: polymers, paintings, films

Location

Instituto Superior Técnico, Avenida Rovisco Pais 1, 1049-001 Lisboa, Physics Building, floor -1, room 01-5.9