Other materials and services

Since 1993 we have been offering our customers crystals and materials according to their wishes. We are also happy to make our experience in processing, characterizing and testing the materials available to you for your projects.

Below are some of the services we can take care of for you:

• one-sided or two-sided, chemo-mechanical polishing of your provided or new single crystal with a roughness (R_a) <5nm (usually <1nm)

alternatively

• one-sided or double-sided electrolytic polishing
• Polishing of two or more oriented faces (facets) on a crystal surface
• thereby, the macroscopic surface of the crystal can be set by default to
  - orientation accuracy < 2°          
  - orientation accuracy < 1°        
  - orientation accuracy < 0.4°           
  - orientation accuracy < 0.1° ( possible up to <0.05°) relative to the crystallographic orientation of the crystal lattice
• Polishing of round surfaces or cylindrical surfaces
• Orientation and cutting of provided crystals with random orientation
• Characterization of crystal mosaicity using gamma diffraction
• Measurement of the roughness (Ra values) of crystal surfaces
• Cutting of crystal geometries according to your specifications with an accuracy of less than +/-0.005 mm, e.g. for fitting single-crystal electrodes in voltammetry
• Drilling with high precision even in oxidic crystals
• Surface etching according to your specifications
• Sensitive welding of a wire for direct electrical contacting of the monocrystals or alternatively
• Growth of bead crystals with up to 50mm long monocrystalline contacting wire
• Attaching of oriented chamfers
• Almost any shape, even of non-conductive (e.g. oxidic or semi-conductive) single crystals: cone geometry, circumferential ring groove, bores, etc.