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The layered semiconductor Bi2O2Se is a promising new‐type 2D material that holds layered structure via electrostatic forces instead of van der Waals (vdW) attractions. Aside from the huge success in device performance, the non‐vdW nature in Bi2O2Se with a built‐in interlayer electric field has also provided an appealing platform for investigating unique photoexcited carrier dynamics. Here, experimental...
Bismuth Oxyselenide
Novel photoinduced quasiparticles, excimers, in the non‐van‐der‐Waals 2D semiconductor Bi2O2Se are unambiguously by Jianbo Hu and co‐workers in article number 2204227, identified through analyzing the emerging dynamic features by transient absorption spectra. Excimers in the Bi2O2Se nanosheets are diffusive and their formation can be simply described as excitons relaxed to an excimer...
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