Stanford Materials Corporation (SMC) is a leading manufacturer and supplier of high purity holmium(III) oxide evaporation materials and a wide variety of evaporation materials. We offer our evaporation materials in powder and granule form. Customized forms are also available upon request.
Holmium(III) oxide evaporation material is a chemical compound of rare-earth element holmium and oxygen with the formula Ho2O3. Together with dysprosium(III) oxide (Dy2O3), holmium oxide is one of the most powerful paramagnetic substances known. The oxide, also called holmia, occurs as a component of the related erbium oxide mineral called erbia. Typically the oxides of the trivalent lanthanides coexist in nature and the separation of these components requires specialized methods.
Holmium oxide has some fairly dramatic color changes depending on the lighting conditions. In daylight, it is a tannish yellow color. Under trichromatic light, it is a fiery orange-red, almost indistinguishable from the way erbium oxide looks under this same lighting. This is related to the sharp emission bands of the phosphors. Holmium oxide has a wide band gap of 5.3 eV and thus should appear colorless. The yellow color originates from abundant lattice defects (such as oxygen vacancies) and is related to internal transitions at the Ho3+ ions.
| Material Type | Holmium Oxide |
| Symbol | Ho2O3 |
| Color/Appearance | Light yellow |
| Melting Point | 2415 °C (4379 °F) |
| Type of Bond | Indium, Elastomer |
| Density | 3.79 g/cm3 |
• Holmium oxide evaporation materials are used in making specialty colored glasses. Glass containing holmium oxide has a series of sharp optical absorption peaks in the visible spectral range. They are therefore traditionally used as a convenient calibration standard for optical spectrophotometers.
• Used in deposition processes including semiconductor deposition, chemical vapor deposition (CVD) and physical vapor deposition (PVD).
• Used for optics including wear protection, decorative coatings, and displays.
Our holmium oxide evaporation materials are carefully handled to prevent damage during storage and transportation and to preserve the quality of our products in their original condition.
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