📋 Workflow
Full workflow, products add-to-cart directly1
Prepare precursor
30 minDissolve lead salt and ammonium halide stoichiometrically in a good solvent.
💡 Tip Heat and stir to dissolve
⚠️ Caution Lead salts are toxic; use PPE
🧪 Materials for this step (click to shop by spec/brand)
2
Nucleate
HoursSlowly cool or add an antisolvent to precipitate perovskite crystals.
💡 Tip Slower crystallization gives larger crystals
🧪 Materials for this step (click to shop by spec/brand)
3
Wash and collect
30 minFilter to collect crystals and wash off excess precursor.
💡 Tip Transfer fast to avoid moisture degradation
⚠️ Caution Perovskites are moisture-sensitive
🧪 Materials for this step (click to shop by spec/brand)
4
Dry & store
1 hVacuum-dry and store sealed under inert conditions.
💡 Tip Store in a dry box under inert gas
🧪 Materials for this step (click to shop by spec/brand)
5
Characterize
2 hConfirm structure and bandgap by XRD, UV-vis, and PL.
🧪 Materials for this step (click to shop by spec/brand)
⚠️ 5 Common Beginner Mistakes
- ① Wrong ratio yields other phases
- ② Moisture degrades and discolors
- ③ Fast precipitation gives small crystals
- ④ Incomplete dissolution stays cloudy
- ⑤ Over-washing dissolves crystals
❓ FAQ
+How to tune bandgap?
Adjust halide composition (Br/I) or cation.
+Why impurity phases?
Check stoichiometry, solvent, and growth rate.
+How to get large crystals?
Slow cooling and seed crystals help.