Fluorescence spectrophotometer

Fluorescence spectrophotometerThis instrument is designed for fluorescence research in electrochemical samples (solid and liquid) with a wide spectral range, high measurement sensitivity, and stable light source intensity. Capable of capturing the emission spectrum and excitation spectrum of the sample. The sample can be illuminated in two ways: white light in the range of 200-1200 nm and monochromatic light. An efficient xenon lamp with innovative stable light intensity mode is used as a white light source in the system. Combined with the Air Mass 1.5G filter, it can simulate the solar spectrum. A grating was placed at the entrance of the sample chamber. The grating is equipped with an automatically adjustable input slit (the xenon lamp source's light is directed towards this slit) and output slit (the light is directed from this slit towards the entrance of the sample chamber). Adjusting the width of the slit can control the intensity of the incident light.

This instrument is designed for fluorescence studies in electrochemical samples (solid and liquid). Capable of capturing the emission spectrum and excitation spectrum of the sample. The sample can be irradiated in two ways:
White light and monochromatic light within the range of 200-1200 nm. An efficient xenon lamp with innovative stable light intensity mode is used as a white light source in the system. Combined with the Air Mass 1.5G filter, it can simulate the solar spectrum. A grating was placed at the entrance of the sample chamber. The grating is equipped with an automatically adjustable input slit (the xenon lamp source's light is directed towards this slit) and output slit (the light is directed from this slit towards the entrance of the sample chamber). Adjusting the width of the slit can control the intensity of the incident light.

Place a second grating at the output end of the sample chamber. These gratings can capture the emitted light of the sample. At the output slit of the grating, a photomultiplier tube connected to the controller and counter captures fluorescent photons. The entire fluorescence spectrum can be precisely defined. The grating structure can also measure the total fluorescence intensity (which can capture all emission wavelengths simultaneously). The filter wheels at the entrance and output of the sample chamber can also reduce stray light in the system.

Additional light sources (halogen lamps) and photomultiplier tubes can be used to extend the spectral range of the system to 1800 nm.

The performance of the entire instrument is automated. The system is implemented through dedicated and intuitive software.

Measured parameters:

Fluorescence excitation spectrum/

Fluorescence emission spectrum

Fluorescence spectrophotometermodule

Closed sample room/

Two gratings (located at the inlet and output ends of the sample chamber) operate in the UV, VIS, and IR ranges,

The photomultiplier tube at the output end of the grating can capture sample fluorescence,

Electronic counters for processing photomultiplier tube signals,

The electrochemical workstation operates in control mode and is connected to a photomultiplier tube,

Sample assembly (customizable for specific sample types),

The two filter wheels at the entrance and output of the sample chamber have six independent filter positions,

Xenon lamp with controller and water cooling system,

IPCE photodiode for controlling the intensity of incident current beam/

A computer with dedicated FotoGUI software.

Technical Indicators:

Photomultiplier tube: sensitivity adjustable (voltage regulated within the range of 500-1200 V), spectral range: 160-900 nm,

Spectral range of grating: 200-1200 nm (expandable to 1800 nm - additional grating required),

Xenon lamp: Three stable modes: (light intensity, lamp current, and lamp power), spectral range: 200-1200 nm

Custom filter types, including Air Mass 1.5G

Customized, personalized, and adjustable sample components based on sample types,

The spectral range of the incident light can be extended to 1800 nm - requiring an additional light source (halogen lamp).