Spectroscopy uses the interaction of electromagnetic radiation with matter to characterize optical, thermal, mechanical and electronic properties of materials. The MRL facilities include conventional, state-of-the-art spectroscopic tools in addition to techniques and instrumentation developed in house.

Spectroscopy Equipment

Equipment Name Contact Location
Equipment Name Contact Location
Two-Color Time Domain Thermoreflectance - TRMOKE soares 0024 Supercon

TDTR is a modality of femtosecond pump/probe spectroscopy. It is used to observe optically-induced changes in optical properties on a 100’s of fs time-scale.

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Newport Solar Simulator soares 148 MRL

Measures I-V curves under solar spectrum or monochromatic illumination.

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OL 750 Spectroradiometer soares 148 MRL

The OL 750 is a spectroradiometric measurement system for internal and external quantum efficiencies (IQE, EQE). It is equipped with a white light bias accessory that allows solar cells active area to be brought up to a typical operating energy level while measuring the spectral response simultaneously.

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SLM/ISS Fluorometer soares mali85 148 MRL

Measures photo-fluorescence of liquid samples. Excitation ranges from 200 nm to 800 nm. Emission between 200 nm and 900 nm. Samples can be heated or cooled from – 20°C to 100°C.

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Neaspec NanoFTIR/NIM AFM, SSNOM soares kawalsh 0022 Supercon

Chemical information from FTIR near-field reflection spectroscopy/imaging and topographic characterization with 20 nm spatial resolution

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Varian Cary 5G and Agilent Cary 5000 soares mali85 148 MRL

The Cary spectrophotometers are able to do measurements of transmission and reflection in the UV, visible, and near-IR (190 nm to 3300 nm). Modes of measurement include transmission, absolute specular reflection, integrated total fluorescence, diffuse transmission (190 nm to 2500 nm), diffuse reflection, and combined diffuse reflection and transmission (190 nm to 2500 nm).

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Time-Domain Thermoreflectance soares 0024 Supercon

TDTR is a modality of femtosecond pump/probe spectroscopy. It is used to observe optically-induced changes in optical properties on a 100’s of fs time-scale. Primarily applied to study thermal properties of thin films and across interfaces, our two custom-built instruments, have accessories to allow for time-resolved magneto-optical Kerr-effect measurements. These instruments are based on Spectra-Physics Tsunami ultrafast Ti:sapphire lasers.

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Time-Resolved Photoluminescence soares offir 0024 Supercon

Enables time-resolved measurements of luminescent emission spectra upon photoexcitation (fluorescence and phosphorescence) to determine the lifetime of emitting states with single photon sensitivity and < 1 ns temporal resolution. Several excitation wavelengths are available in the range from 380 nm to 900 nm.

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Horiba XploRA-nano TERS/TEPL soares kawalsh 0022 Supercon

This equipment was funded through the Illinois MRSEC, NSF Award Number DMR-1720633.

The XploRA PLUS Raman Microscope head-based tip-enhanced Raman spectroscopy (TERS) and tip enhanced photoluminescence (TEPL) from Horiba, Inc. is a fully integrated TERS/TEPL system based on SmartSPM state of the art scanning probe microscope (SPM) and XploRA Raman micro-spectrometer.

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Photoluminescence / Raman soares 0024 Supercon

Measures luminescent emission spectra upon photoexcitation (fluorescence and phosphorescence) and Raman scattering. Our custom-built experimental setup has discreet excitation wavelengths available, in the range from 266 nm to 1050 nm. It allows for measurements from 4.2 K to 300 K using a liquid He bath cryostat.

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Thermo Nicolet Nexus 670 FTIR soares mali85,jcspear 0024 Supercon

The Thermo Nicolet Nexus 670 Fourier transform infrared spectrophotometer is equipped to measure transmission, reflection, diffuse reflection, diffuse transmission, and attenuated total reflection (ATR) in the mid-IR. Ranges vary from different accessories within 650 cm-1 to 5000cm-1. Its multibounce ATR attachment can measure solid and liquid specimens. Ideal sample size for solids is between 40 mm x 5 mm to 140 mm x 200 mm and for liquids a volume between 0.1 ml and 0.5 ml. Its new “IntegratIR”® integrating sphere attachment can be used to measure diffuse reflectance or transmission of light-scattering and highly absorbing solid samples.

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