Probing dopant segregation in distinct cation sites at perovskite oxide polycrystal interfaces

oleh: Hye-In Yoon, Dong-Kyu Lee, Hyung Bin Bae, Gi-Young Jo, Hee-Suk Chung, Jin-Gyu Kim, Suk-Joong L. Kang, Sung-Yoon Chung

Format: Article
Diterbitkan: Nature Portfolio 2017-11-01

Deskripsi

Space-charges in polycrystalline materials can drive segregation of dopants, however an in-depth understanding of this process is still missing. Here, the authors show that in polycrystalline perovskites the space-charge segregation and interfacial structure are nearly identical irrespective of the interface type.