Properties of CVD Diamonds
| Property | Value | Application |
|---|---|---|
| Band gap, eV | 5.4 | High-temperature electronics |
| Carrier mobility, cm2/Vs | 1600 h 2200 e |
Radiation-hard detectors Optoelectronic switches |
| Resistivity, Ohm*cm | 1013-1015 | Optical (electron) switches |
| Thermal conductivity, W/mK | 1800-2200 | Heat spreaders |
| Dielectric constant | 5.7 | Diamond Thz/Ghz based DLA to allow a sustained accelerating gradient larger than 600 MV/m |
| Loss tangent @170 GHz | 0.3·10-6 | Windows for gyrotrons, klystrons |
| Optical transmission range | 225 nm – RF | Optics for lasers (mostly IR) |
| Hardness, GPa | 81±18 | IOL Tools controlled waviness, surgery blades, knife, scalpel |
| Acoustic wave velocity, km/s | 18.4 along <111> | Surface acoustic wave devices |
| Thermal expansion coefficient, 10-6K-1 | 0.8 @293 K | Stable-dimension components |
| Corrosion resistance | Stable in HF | Electrochemistry (doped diamond) |
| Low or negative electron affinity | Field electron emitters | |
| Biocompatibility | Coatings on implants |