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DPM100

Wide range double prism monochromator

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Enables the adjustment of the wavelength over a wide spectral range without any discontinuities

  • Extremely wide spectral range (0.4–7.3 eV/ 170 - 3100 nm)

  • Spectral resolution: 2 meV – 100 meV (depending on wavelength and slit width)

  • Excellent stray light suppression

Materials

The DPM100 can be used for all kinds of materials

Si SiC Ge GaAs Ga₂O₃ InP Diamond and more

Features & Benefits

0.4–7.3 eV

Spectral range

>10⁸

Stray light suppression

3 mm

Spot diameter

2–100 meV

Spectral resolution

2–100 meV

Spectral resolution

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Technologies

Electrical and optical characterization using surface photovoltage spe

Photocarrier generation and separation mechanisms, Minority carrier lifetime measurement/Diffusion length calculations, Trapped carrier dynamics, time resolved, Surface Photovoltage…

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SPV signal analysis: fits and simulations

We are currently developing simulation tools to enable first principle calculations of the electronic structure in a given photoactive material or material combination, based on solid-state…

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Comparison between MPD and SPV techniques

MDP (microwave detected photoconductivity): sensitive to moving photogenerated charge carriers (bulk property), SPV (surface photovoltage): sensitive to surface AND bulk properties with respect…

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Static, transient or modulated light excitation pro and con

The time-resolved or frequency-modulated, surface photovoltage spectroscopy (SPS) is based on a time-resolved/frequency modulated measurement of the spectral dependence of the surface…

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SPV-Picts SPV temperature dependence measurements

Use this option to make SPV measurements at different temperatures between room temperature and 200°C. Temperature-dependent SPV measurements can be applied to measure activation energies or to…

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Materials

Any photoactive material from raw material to finished device:From powder-based samples over wafers to boules or ingots. From 10 x 10 mm2 and up to 300 mm diameter, From titanium dioxide over…

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Get in touch

Do not hesitate to contact us – we are available to assist you with any inquiries or requests.

Use our inquiry tool or reach out via email:
sales@freiberginstruments.com