I fabricated CsPbBr3 and CsPbCl2Br QD and made them into powder.
Br3 powder dried well and became fine powder; however Cl2 powder became gel-like powder. Does the composition affects when drying? or Is that because of impurities?
It can be . Many Aluminium and Magensium chlorides, while attempted to be dried, forms jelly-like hydroxides or oxyhydroxides/oxychlorides. But Cs and Pb halides properties might not directly come down to perovskite here.