Light-induced strain and its correlation with the optical absorption at charged domain walls in polycrystalline ferroelectrics

Fernando Rubio-Marcos,Paula Pamies,Adolfo Del Campo,Jordi Tiana,Jonathan Ordoñez-Pimentel,Michel Venet,Rocío E. Rojas-Hernandez,Diego A. Ochoa,José F. Fernández,José E. García

Applied Materials Today（2023）

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摘要

•A correlation between optical absorption and light-induced strain is evidenced.•Light absorption at CDWs is at the core of the photo-response in BaTiO3.•The PER is proposed as the physical mechanism for optical absorption at CDWs.•The photoinduced strain enhances as sample thickness decreases.

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关键词

Photoferroelectrics,Ferroelectric domain walls,Optical absorption,Barium titanate,Photoinduced strain

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