Table 8.
Best efficiencies reported for organic and inorganic hole-transporting materials (HTMs).
| HTM | Dye | Long Term Stability | PCE (%) | Ref. |
|---|---|---|---|---|
| Solid state ionic conductors | ||||
| Succinonitrile + DMPII | N719 | Not reported | 7.80 | [304] |
| MPII + NMBI + LiI + I2 | MK2 | Not reported | 7.45 | [290] |
| Succinonitrie + N-methyl-N-butylpyrrolidinium iodide + I2 | N719 | Not reported | 6.7 | [291] |
| PMII/I2/LiI/EMIm+BF4− | Metal free organic dye (name undisclosed) | 100% original after 1000 h of soaking at 100 mW cm−2 |
6.63 | [302] |
| Inorganic HTMS | ||||
| [Cu(tmby)2](TFSI)2 and [Cu(tmby)2](TFSI) | Y123 | Stability reported for under 200 h at 500 W m−2 | 11.0 | [100] |
| Fluorine doped CsSnI3 + SnF2 | N719 | Not reported | 8.5 | [31] |
| Cu(dmp)2 HTM | LEG4 | Not reported | 8.2 | [186] |
| Cs2SnI6 + Li-TFSI + TBP | a mixture of N719 with YD2-o-C8 and RLC5 | Not reported | 8.0 | [292] |
| Organic HTMs | ||||
| Spiro-OMeTAD + AQ310 | AQ310 | Not reported | 8.0 | [317] |
| Spiro-OMeTAD + S5 dye | S5 | Not reported | 7.8 | [427] |
| Spiro-OMeTAD + TeCA | LEG4 | Not reported | 7.7 | [294] |
| Spiro-OMeTAD + FK102 (Co3+) | Y123 | Not reported | 7.2 | [293] |
| PEDOT (PEP) | LEG4 | Not reported | 7.11 | [412] |
| PEDOT with OM-TiO2 | N719 | Not reported | 6.8 | [409] |