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Ultrafast optical investigation of carrier and spin dynamics in low-dimensional perovskites

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Abstract

Low-dimensional perovskite (PVK) materials have attracted significant research interest, because of their quantum-confined effect, tunable band gap structures, and higher stability than that of three-dimensional (3D) PVKs. In semiconductor optoelectronic devices, high speed and small size are closely interlinked. The development of high-speed devices requires researchers to fully understand the properties of materials, especially the dynamic processes such as carrier recombination, separation, and transport, which often play a crucial role in the performance of devices. As an indispensable part of dynamic research, spin relaxation is also of great significance in studying the properties of materials and explore possible applications. Lead halide PVK materials have strong spin-orbit coupling (SOC), which provides a basis for information storage and processing by using spin degrees of freedom. Therefore, studying the carrier and spin dynamics of low-dimensional PVKs is an effective way to understand the internal properties of low-dimensional PVKs clearly. This paper summarizes the latest research progress on the ultrafast carrier and spin dynamics in low-dimensional PVKs, to comprehensively understand their carrier and spin behaviors and present an outlook for relevant studies in this area.

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Authors and Affiliations

  1. Key Laboratory for Micro-Nano Physics and Technology of Hunan Province, School of Physics and Electronics, Hunan University, Changsha, 410012, China

    JinYue Fu & Ying Jiang

  2. State Key Laboratory of Precision Measurement Technology and Instruments, Department of Precision Instrument, Tsinghua University, Beijing, 100084, China

    HongHua Fang

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  2. Ying Jiang
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Correspondence to Ying Jiang or HongHua Fang.

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This work was supported by the National Natural Science Foundation of China (Grant Nos. 52072117, 62075115, and 21703059).

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Fu, J., Jiang, Y. & Fang, H. Ultrafast optical investigation of carrier and spin dynamics in low-dimensional perovskites. Sci. China Technol. Sci. 67, 2–18 (2024). https://doi.org/10.1007/s11431-022-2285-1

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