Modified Pechini Synthesis of Oxide Powders and Thin Films

Abstract

The modified Pechini method has become one of the most popular synthesis methods for complex oxide materials due to its simplicity and versatility. The method can be applied to synthesize nanocrystalline powders, bulk materials, as well as oxide thin films. Here, we present a comprehensive review of the method with focus on the chemistry through the three stages of the process: preparation of stable aqueous solution, polyesterification to form a solid polymeric resin, and finally decomposition/combustion of the resin to form an amorphous oxide followed by crystallization of the desired oxide phase. The review include several examples of important technical oxide materials where the method has been successfully been applied to prepare oxide powders and bulk or thin films.