Question: Which semiconductors in Table 7.8 will have colors other than white or black? For each compound in your list predict the approximate color. Table 7.8

Which semiconductors in Table 7.8 will have colors other than white or black? For each compound in your list predict the approximate color.

Table 7.8

Si Ge Elemental semiconductors Bond Band gap distance () (eV) 2.35 2.44 Sn 2.81 1.11 (i) 0.67 (1) -0.0 III-V

Si Ge Elemental semiconductors Bond Band gap distance () (eV) 2.35 2.44 Sn 2.81 1.11 (i) 0.67 (1) -0.0 III-V Semiconductors Bond distance () (eV) AIP 2.37 AIAS 2.45 AlSb 2.66 GaP 2.36 2.45 GaAs Gasb InP InAs InSb 2.64 2.54 2.62 2.80 Band gap 2.43 (i) 2.16 (i) 1.52 (i) 2.26 (1) 1.43 (d) 0.72 (d) 1.35 (d) 0.36 (d) 0.18 (d) ZnS ZnSe ZnTe CdS* CdSe* CdTe II-VI Semiconductors Bond distance (A) (eV) 2.34 2.45 2.64 Band gap 2.52 2.63 2.81 3.6 (d) 2.58 (d) 2.25 (d) 2.42 (d) 1.73 (d) 1.50 (d)

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