{TAIL ~ The process} comprises contacting a metal complex comprising the first ion and the second ion with a dispersing medium suitable to form the nanocrystalline material and wherein the dispersing medium is at a temperature to allow {HEAD ~ formation} by pyrolysis of the nanocrystalline material when contacted with the metal complex 
{ TAIL ~ The process } comprises contacting a metal complex comprising the first ion and the second ion with a dispersing medium suitable to form the nanocrystalline material and wherein the dispersing medium is at a temperature to allow { HEAD ~ formation } by pyrolysis of the nanocrystalline material when contacted with the metal complex
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