Table 12 Variation of charge carrier concentration (n) of the ligand, DBAPB, and its complexes 5, 12, 16, 20, 24, 27 with temperature.

From: New Schiff base ligand and its novel Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II) complexes: spectral investigation, biological applications, and semiconducting properties

Charge carrier concentration (n) cm−3

T (k)

DBAPB

Mn(II) complex 12

Co(II) complex 16

Ni(II) complex 20

Cu(II) complex 5

Cu(II) complex 24

Cu(II) complex 27

308

1.41 × 1041

1.05 × 1044

1.84 × 1037

1.12 × 1050

5.02 × 1043

4.43 × 1040

2.71 × 1046

318

1.59 × 1041

1.29 × 1046

2.85 × 1039

1.18 × 1050

6.24 × 1045

6.12 × 1042

3.10 × 1048

328

3.09 × 1041

1.93 × 1046

6.91 × 1039

1.31 × 1050

9.43 × 1045

1.15 × 1043

3.86 × 1048

338

6.46 × 1041

2.69 × 1046

1.45 × 1040

1.45 × 1050

1.37 × 1046

1.97 × 1043

4.68 × 1048

348

1.17 × 1042

3.72 × 1046

2.94 × 1040

1.60 × 1050

1.90 × 1046

3.29 × 1043

5.57 × 1048

358

2.19 × 1042

5.19 × 1046

6.18 × 1040

1.76 × 1050

2.71 × 1046

5.67 × 1043

6.76 × 1048

368

4.04 × 1042

7.15 × 1046

9.18 × 1040

1.93 × 1050

3.81 × 1046

9.46 × 1043

8.11 × 1048

378

7.17 × 1042

9.66 × 1046

2.44 × 1041

2.10 × 1050

5.2 × 1046

1.54 × 1044

9.61 × 1048

388

1.16 × 1043

1.25 × 1047

3.98 × 1041

2.29 × 1050

6.87 × 1046

2.32 × 1044

1.12 × 1049

398

1.95 × 1043

1.64 × 1047

8.26 × 1041

2.37 × 1050

9.15 × 1046

3.59 × 1044

1.30 × 1049

408

3.20 × 1043

2.14 × 1047

1.39 × 1042

2.57 × 1050

1.21 × 1047

5.46 × 1044

1.51 × 1049