Give at least one example of 1 elementary 2 binary 3 ternary

Give at least one example of (1) elementary (2) binary (3) ternary semiconductors. What kind of chemical bonding (ionic, covalent or mixed bonding) do the semiconductors you list have?

Solution

1. Elemental semicondutor :- Single element semiconductor element from the group IV of periodic table : - SI , GE , C,SN

si , ge are covalent bond

2. Binary Semiconductor :- Semiconductor compound consisting of two elements , eg :- SIC , GaAs , CdS

SIC IS hard covalent bonding , GaAs covalent bond

3. TERNARY semiconductor :- Semiconductor compound consisting of three elements

eg : ALGaAs , CdHgTe

mixed bonding is ALGAAS