Gallium Arsenide Unit Cell Structure
SKU: 68762W
Build an aluminium gallium arsenide (AlGaAs) unit cell with the Indigo® 68762W molecular model kit to demonstrate Td point group symmetry, zinc blende crystal structure, and bandgap engineering in III-V ternary semiconductor alloys. Ideal for solid state chemistry, semiconductor physics, materials science, and optoelectronics courses.
The Indigo® 68762W kit can build an aluminium gallium arsenide (AlxGa1-xAs) unit cell molecular model. AlGaAs has a zinc blende crystal structure and belongs to the Td point and F4?3m crystallographic space groups. It consists of two interpenetrating face-centered cubic sublattices offset by one quarter of the body diagonal. The Group V arsenic (As) atoms occupy one FCC sublattice, shown in yellow in the model, while aluminium (Al) and gallium (Ga) atoms randomly share the second FCC sublattice, shown in blue. Each atom is tetrahedrally coordinated by four atoms of the opposite type, giving a 4:4 coordination geometry consistent with the sp3 covalent bonding character of III-V semiconductors.
Indigo Instruments has held inventory of genuine Cochranes of Oxford (Orbit) parts for 30+ years (See Skeletal (Orbit/Minit)) that are compatible with every molecular model we have sold since day 1. This level of quality may appear expensive but no parts support from other vendors costs even more.
