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Detailed conditions for the synthesis of MHHP crystals.
| The precursors’ concentration | Solvent | The concentration of PPG‐3000 [g mL−1] | Temperature [°C] | |
|---|---|---|---|---|
| MAPbI3 | 1.3 m | GBL | 0.03 | 95 |
| MAPb(Br0.17I0.83)3 | 1.3 m | GBL/DMF (v:v = 1:1) | 0.02 | 90 |
| MAPb(Br0.5I0.5)3 | 1.3 m | GBL/DMF (v:v = 1:1) | 0.1 | 90 |
| MAPb(Br0.75I0.25)3 | 0.7 m | GBL/DMF (v:v = 1:1) | 0.1 | 90 |
| MAPbBr3 | The synthesis method for MAPbBr3 single crystal is different from other perovskites, which has been described above in detail. | |||
