Apr 12 2013
Boron arsenide is a chemical compound of boron and arsenic. It occurs in cubic sphalerite, and it can be alloyed with gallium arsenide. It also occurs as an icosahedral boride. Boron arsenide is a wide bandgap semiconductor having a potential to self-heal radiation damage. It can be combined with substrates such as silicon carbide.
Applications
Boron arsenide finds applications in the following:
- Solar cells
- Devices that produce electrical energy by coupling a radioactive beta emitter to a semiconductor junction
- Space electronics.
Chemical Properties
The chemical properties of boron arsenide are provided in the table below:
| Chemical Properties |
| Chemical Formula |
BAs |
| Molecular Weight |
85.733 |
| CAS No. |
12005-69-5 |
| Group |
Boron – 13
Arsenic - 15 |
| Crystal Structure |
Cubic |
| Lattice Constant |
4.777 Å |
Electrical Properties
The electrical properties of boron arsenide are provided in the table below:
| Electrical Properties |
| Band Gap |
1.5 eV |
Thermal and Mechanical Properties
The thermal and mechanical properties of boron arsenide are provided in the tables below:
| Thermal Properties |
| Debye Temperature |
352°C |
| Mechanical Properties |
| Density |
5.22 g/cm3 |
| Melting Point |
2027°C |
| Knoop Microhardness |
19000 |
Safety Information
| Safety Information |
| GHS Hazard Statements |
H301 + H331 - Toxic if swallowed or if inhaled
H410 - Very toxic to aquatic life with long lasting effects. |
| Safety Precautions |
P261 - Avoid breathing dust
P273 - Avoid release to the environment
P301 + P310 - If swallowed: Immediately call a POISON CENTER or doctor/physician
P311 - Call a POISON CENTER or doctor/ physician
P501 - Dispose of contents/ container to an approved waste disposal plant. |