How to precipitate the quantum dots? The reported procedure does not work in my case. I have octadecene as a solvent with InP QDs.

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Irene Rosina

The most common washing procedure used, is to mix the crude reaction mixture with toluene and ethanol and centrifuge it. The cleaning procedure is usually repeated several times to get a clean product. Finally, the precipitate can be disperse again inorganic solvents, such as n-haxane, tolene or chloroform.

Akanksha Prakash

Thanks Irene for your answer. But as I said that the normal reported method does not work. I tried ethanol, methanol but no precipitate was obtained. The quantum dots got dispersed in excess of ethanol, methanol as well.