Table 2. Reported Carrier Mobilities and Diffusion Lengths of HPs Measured Using Various Spectroscopic Techniques (At Room Temperature)a.
| material | technique | diffusion length LD (μm) | carrier mobility μ (cm2 V–1 s–1) | diffusion coefficient D (cm2 s–1) | ref |
|---|---|---|---|---|---|
| polycrystals | |||||
| MAPbI3 | PL quenching | < 0.13 (e), < 0.09 (h) | 1.40 (e), 0.86 (h) | 0.036 (e), 0.022 (h) | (89) |
| MAPbI3 | PL quenching | < 0.129 (e), < 0.105 (h) | 0.66 (e), 0.43 (h) | 0.017 (e), 0.011 (h) | (6) |
| MAPbI3-xClx | PL quenching | < 1.069 (e), < 1.213 (h) | 1.63 (e), 2.10 (h) | 0.042 (e), 0.054 (h) | (6) |
| MAPbI3 | THz conductivity | ∼2.5 | ∼30 | ∼0.78 | (497) |
| MAPbI3-xClx | THz conductivity | ∼2 | ∼11.6 | ∼0.30 | (496) |
| FAPbI3 | THz conductivity | ∼25 | ∼75 | ∼1.93 | (494) |
| MAPbI3 | transient absorption microscopy | ∼1.2 | 1.4–3.11 | 0.05–0.08 | (504) |
| MAPbI3 | transient grating | ∼1.9–3.8 | 19.5–77.82 | 0.5–2.0 | (510) |
| MAPbI3 | transient grating | ∼0.95 | ∼66.15 | ∼1.7 | (509) |
| (PEA)2PbI4 | PL microscopy | 0.24 | ∼7.47 | 0.192 (x) | (506) |
| BA)2(MA)n−1PbnI3n+1 | transient absorption microscopy | 0.16 (n = 1) – 0.67 (n = 5) (x) | 2.33 (n = 1) – 13.23 (n = 5) (x) | 0.06 (n = 1) – 0.34 (n = 5) (x) | (507) |
| single crystals | |||||
| BA)2(MA)n−1PbnI3n+1 | scanning photocurrent microscopy | 7 (n = 1) – 14 (n = 3) | – | – | (402) |
| MAPbI3 | scanning photocurrent microscopy | 18 | – | – | (402) |
| MAPbI3 | SCLC and transient PL | 2–8 | 2.5 | ∼0.06 | (7) |
| MAPbBr3 | Hall effect and transient PL | 3–11 | 20–60 | ∼0.51–1.54 | (7) |
| MAPbBr3 | transient PL | 2.8–4.4 | 310–820 | 8–21 | (499) |
| MAPbI3 | transient PL | – | >50 | >1.28 | (501) |
| MAPbI3 | THz conductivity | – | 500–800 | ∼12.8–20.6 | (115) |
| FAPbBr3 | transient reflectance | – | 28.4 | 0.73 | (502) |
| nanocrystals | |||||
| MAPbBr3 | PL microscopy | 0.8–1.1 | 5.9–10 (x) | 0.15–0.27 (x) | (505) |
| CsPbBr3 | transient PL microscopy | ∼0.2 | 19.45 | 0.5 (x) | (508) |
| CsPbBr3 | TA | 0.24 | 2.1 (e), 0.69 (h) | 0.05 (e), 0.02 (h) | (503) |
a
Diffusion coefficient D and mobility μ are related by the Einstein-Smoluchowski Relation. This relation is used to calculate the italicized values in this table, in cases when either value is not reported in the literature. Here, e, h, and x refer to the electron, hole, and exciton, respectively. If the type of carrier is not specified, the reported value indicates the total mobility of all the carriers.