Gamry Raman Spectroelectrochemistry

Product Description

Raman spectroelectrochemistry combines electrochemistry with the non-linear interaction between an exciting light source and the material to be analysed.

In response, in addition to the known monochromatic excitation wavelength, the scattered light spectrum also contains shifted wavelength trains whose shifts correspond to the resonance frequencies of the bonds in the material. The monochromatic light from the laser must be guided to the sample body with as little loss as possible, focussed on its surface and then the scattered light response effectively collected and returned to the spectrometer with as little loss as possible.

A very high signal purity is important for the excitation, which is why a transmission filter (bandpass filter) of the corresponding wavelength is incorporated in the optical path. To minimise interference with the reflected excitation wavelength (Rayleigh scattering) due to the identical optical axes of excitation and detection, a long-pass (LP) filter is installed in the optical path for scattered light recording, which only allows wavelengths above the excitation wavelength to pass.

Raman spectroscopy serves fundamentally as an analytical tool for both the qualitative detection of molecular species and their configuration changes. Compared to complementary absorption methods such as FT-IR and NIR spectroscopy, the detection of scattered light also offers the advantage that broad absorption bands of a surrounding medium do not interfere and complex sample preparation is not required. In this way, investigations on solids, liquids and gases can be carried out not only directly, but also through transparent storage vessels (glass, quartz, polymers, etc.).

Gamry offers two different kits for accommodating the samples to be analysed in an experimental setup that meets the requirements for both Raman spectroscopy and electrochemical redox reactions. Firstly, the “Raman Spectroelectrochemical Glass Cell Kit (1)” using an immersion probe for measurements in liquids on any working electrode of flat geometry and the Raman Spectroelectrochemical Cuvette Cell Kit (2) for measurements inside a cuvette with high reproducibility of the signal quality thanks to a cuvette holder specially optimised for Raman spectroscopy. The working electrode is float glass (8 mm x 60 mm x 1.1 mm) coated with semiconductor material (ITO).

Downloads

Videos

The Gamry Interface 1010 Potentiostat Starter Pack

Specifications

DIMENSIONS (cm): 17 (W) x 34 (L) x 24.2 (H)


WEIGHT (kg):
5



SYSTEM



Wavelengths:

532 nm > 30 mW (software-controlled power regulation)

785 nm > 340 mW (software-controlled power regulation)

830 nm > 340 mW (software-controlled power regulation)



Linewidth (FWHM): < 0.3 nm

Wavelength range / resolution (532 nm): 65 cm⁻¹ – 3400 cm⁻¹ / < 3.5 cm⁻¹ @ 614 nm

Wavelength range / resolution (785 nm): 65 cm⁻¹ – 2800 cm⁻¹ / < 3.5 cm⁻¹ @ 912 nm

Detector: High quantum efficiency CCD array (-2°C)

Integration time: 100 ms – 30 min.

Interfaces: USB 3.0 (4 Gbps) / USB 2.0 (480 Mbps)

Trigger interface: 5 V TTL

Power supply: 12 V DC @ 6.6 A

Options and Accessories

• Interface 1000 Potentiostat/Galvanostat/ZRA

• Interface 1010 Potentiostat/Galvanostat/ZRA

• Reference 600 Potentiostat/Galvanostat/ZRA

• Reference 600+ Potentiostat/Galvanostat/ZRA

• Reference 3000 (AE) Potentiostat/Galvanostat/ZRA

Measurement cells and accessories:

• Vista Shield Faraday Cage

• Reference electrodes

Raman Glass Cell Kit (1):

• Raman Spectroelectrochemical Glass Cell Kit

• Raysorb-coated glass cell (red) with O-ring

• Raman Cell Lid (three ports for Raman Immersion Shaft, Counter Electrode and Reference Electrode)

• Skinny Ag/AgCl reference electrode

• Raman height adjustment system

• Immersion probe

Raman Cuvette Cell Kit (2):

• Raman ITO cuvette cell kit

• Standard quartz cuvette, 10 mm path length

• Pt wire counter electrode

• ITO cuvette lid set

• ITO substrate set (sheet resistance 10 Ω – 15 Ω, polished float glass, 8 mm x 60 mm, 1.1 mm thickness) including two connectors

• Raman probe / cuvette holder

Applications