Table 2 Physical parameters of the CQD layers obtained from various measurements

From: Energy level tuned indium arsenide colloidal quantum dot films for efficient photovoltaics

Materials

Majority carrier

Mobility (cm2 V−1 s−1)

Carrier concentration (cm−3)

Trap density (cm−3)

Diffusion length (nm)

InAs–Br

Electron

1.55 × 10−3 (FET)b 1.34 × 10−3 (3D PL)c

2.77 × 1016 (FET)a 4.65 × 1016 (C–V)d

3.32 × 1017 (3D PL)c

30 (3D PL)c

InAs–MPA

Electron

2.25 × 10−3 (FET)b 1.78 × 10−3 (3D PL)c

1.28 × 1017 (FET)a 1.27 × 1017 (C–V)d

1.24 × 1017 (3D PL)c

60 (3D PL)c

PbS–I

Holea

2.74 × 10−3 (FET)a (air)

8.11 × 1015 (FET)a

5.30 × 1015 (C–V)d (InAs–Br)

5.18 × 1015 (C–V)d (InAs–MPA)

  1. aSupplementary Fig. 14 and Supplementary Table 3
  2. bMean value of linear and saturation field-effect mobility of Table 1
  3. cSupplementary Figs. 11, 12, 13, and Supplementary Table 2
  4. dSupplementary Fig. 17 and Supplementary Table 4