Our range of Ultra-high Vacuum (UHV) Kelvin Probes give the user full access to work function (Φ) and contact potential difference (CPD) measurements under vacuum. Each system comes with a high quality manual or motorised translator that enables reliable and accurate tip-to-sample positioning, and the unrivalled tracking system holds the tip separation constant at all times during the measurement. Even under these conditions, the work function resolution is 1-3 meV. The dedicated software allows full digital control of all parameters to match the exact requirements of the sample under investigation. The recorded data is easily exportable to analysis software. The UHV Kelvin probe can be mounted to the user’s existing chamber or KP Technology Ltd offers an elegant UHVKP cell system (UHVKP corner cube) that can be used for ambient, UHV or gaseous measurements. This cell is modular and a host of extras can be added-on. APPLICATIONS - Organic and non-organic semiconductors - Metals and metal alloys - Thin films and surface oxides - Solar cells and organic photovoltaics - Corrosion e.g. protection and resistance FEATURES - Work function resolution of 1-3 meV - Camera and monitor provided (cube system) - Gaseous or ambient measuring - Modular system for upgrades and add-ons - Automatic height regulation - SPV, SPS and APS options available UPGRADES AND ADD-ONS - Ambient-pressure Photoemission Spectroscopy - Surface Photovoltage (QTH or LED) - Surface Photovoltage Spectroscopy (400-1000nm) - Motorised or manual translators (50 mm to 100 mm) - Heater stage and/or sample translation SYSTEM SPECIFICATIONS UHV Kelvin Probe head with manual translator Tip material / diameter: 4 mm - 10 mm stainless steel tip Work function resolution: 1 - 3 meV Manual translator sizes: 50 mm or 100 mm manual translators Motorised translator sizes: 50mm or 100mm manual translators Height control (auto): Approximately 1 - 5 mm by DC offset Visualisation: Single-point work function/contact potential difference scans Oscilloscope: Digital TFT oscilloscope for real time signal Test sample: DN40 stainless steel shipping sample Control supplied: PC control with dedicated software Detection system: Off-null with parasitic capacity rejection Mounting geometry: Normal to sample surface Mounting port: DN40/CF70 (2.75 inch) OD Vacuum compatibility: 2 x 10-11 mBar Flange to sample distance: User defined UHV cell: Not included Warranty: 12 Months
The surface photovoltage spectroscopy modules are the perfect all-in-one solution for in-depth studies of light sensitive materials such as organic semiconductors, solar cells or light sensitive dyes. The modules offer a comprehensive range of measurement modes including DC and AC surface photovoltage studies utilising the built-in optical chopper. Total digital control of all parameters including light intensity and wavelength (400 - 700 nm: SPS030 or 400 - 1000 nm: SPS040) gives the opportunity to investigate and characterise the surface photovoltage and surface photovoltage spectroscopy properties of samples. The latest materials and applications highlighted in published papers includes, gold films, perovskite solar cells, titanium dioxide nanotubes, dye sensitised solar cells, hybrid organic/inorganic photocathodes and tungsten trioxide. Download the product brochure for more information on the Surface Photovoltage range, including technical specifications, example measurements and add-on options. - SPS030 - SPS040 - SPV020
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The surface photovoltage spectroscopy modules are the perfect all-in-one solution for in-depth studies of light sensitive materials such as organic semiconductors, solar cells or light sensitive dyes. The modules offer a comprehensive range of measurement modes including DC and AC surface photovoltage studies utilising the built-in optical chopper. Total digital control of all parameters including light intensity and wavelength (400 - 700 nm: SPS030 or 400 - 1000 nm: SPS040) gives the opportunity to investigate and characterise the surface photovoltage and surface photovoltage spectroscopy properties of samples. The latest materials and applications highlighted in published papers includes, gold films, perovskite solar cells, titanium dioxide nanotubes, dye sensitised solar cells, hybrid organic/inorganic photocathodes and tungsten trioxide. Download the product brochure for more information on the Surface Photovoltage range, including technical specifications, example measurements and add-on options.
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Specification - Tip material / diameter: 4 mm - 10 mm stainless steel tip (other diameters available) - Work function resolution: 1 - 3 meV - Standard translator: 50 mm manual translator - Motorised translator sizes: 50 mm or 100 mm manual translators - Height control (auto): Approximately 1 - 5 mm by DC offset (unless motorized) - Visualisation: Single-point work function/contact potential difference scans - Oscilloscope: Digital TFT oscilloscope for real time signal - Options: SPS/SPV/APS capabilities - Test sample: Available on request - Control supplied: USB control with dedicated software - Detection system: Off-null with parasitic capacity rejection - Mounting geometry: Normal to sample surface - Mounting port: DN40/CF70 (2.75 inch) OD - Vacuum compatibility: 2 x 10-11 mBar - Flange to sample distance: User defined - UHV cell: Not included - Warranty: 12 Months
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Specification Tip material / diameter: 2 mm stainless steel tip Work function resolution: 1 - 3 meV Sample scanning: 50 x 50 mm Relative humidity control: Automatic: 20 - 80% Atmospheric control: Oxygen <1% Optical system: Colour Camera Oscilloscope: Digital TFT oscilloscope for real time signal Test sample: Gold and aluminium sample Breadboard footprint: 900 x 600 mm Control supplied: PC with dedicated software Detection system: Off-null with parasitic capacity rejection Warranty: 12 Months
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