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- W4367059104 abstract "Abstract High tunability of photoconductivity is highly desired for applications in optical memories, sensors, and bioelectronics. Recently, room temperature persistent photoconductivity (PPC) in SrTiO 3 (STO) has been revealed and has attracted great attention. However, reversible switching of the PPC in STO with a large on/off ratio remains challenging to date. Here, a giant switchable PPC in soft chemistry reduced STO is reported. An initial insulator‐to‐metal transition with on/off ratio up to 7 orders of magnitude is observed and about 5 orders of magnitude transition is found to be reversible. Via nuclear magnetic resonance measurements, it is uncovered that such unusual PPC is driven by the generation of excess carriers accompanied with a configuration evolution of the incorporated hydrogen from hydridic H O + to protic H i + upon illumination. The work demonstrates giant switchable PPC transition in soft chemistry reduced perovskite oxides, providing a new platform for pursuing high performance sensors and nonvolatile optoelectronic memory devices." @default.
- W4367059104 created "2023-04-27" @default.
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- W4367059104 date "2023-04-26" @default.
- W4367059104 modified "2023-09-25" @default.
- W4367059104 title "Giant Switchable Persistent Photoconductivity in Soft Chemistry Reduced SrTiO<sub>3</sub>" @default.
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- W4367059104 doi "https://doi.org/10.1002/aelm.202300068" @default.
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