It would be better if you purchase the commercially available DEZ and used it as it is. I have long experience using DEZ as the Zn source to deposit ZnO by ALD; it is very difficult to synthesize it in high-purity form and without high purity, you won't be able to deposit ZnO via the PECVD method.
Ritika Tripathi You can contact Mr. Sundeep from Chempure (Email id: [email protected]; Mob: +91 9538862813) and you may mention my name as a reference. He knows me very well and you ask the query about the Diethyl zinc chemical used for ALD/PECVD. And for optimizing the ZnO growth process, you can contact me if you have any doubts.