Rashba Effect and Spin-Dependent Excitonic Properties in Chiral Two-Dimensional/Three-Dimensional Composite Perovskite Films

Li, Junzi; Guo, Zhihang; Qin, Yan; Liu, Rulin; He, Yejun; Zhu, Xi; Xu, Fuming; He, Tingchao

doi:10.1021/acs.jpclett.3c03247

Cited by 2 publications

(2 citation statements)

References 52 publications

(102 reference statements)

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“…The recent development of chiral 2D/three-dimensional (3D) composite perovskites offers a new opportunity to engineer the Rashba effect. Li et al synthesized one pair of chiral 2D/3D composite perovskite [ 73 ]. The optical properties were studied by polarization-dependent femtosecond transient absorption (fs-TA) spectroscopy, which revealed that the chiral properties of organic cations were successfully transferred to the achiral part.…”

Section: Rashba Effect In Two-dimensional Perovskitesmentioning

confidence: 99%

Research Progress on Rashba Effect in Two-Dimensional Organic–Inorganic Hybrid Lead Halide Perovskites

Guo,

Zhang,

et al. 2024

Nanomaterials

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The Rashba effect appears in the semiconductors with an inversion–asymmetric structure and strong spin-orbit coupling, which splits the spin-degenerated band into two sub-bands with opposite spin states. The Rashba effect can not only be used to regulate carrier relaxations, thereby improving the performance of photoelectric devices, but also used to expand the applications of semiconductors in spintronics. In this mini-review, recent research progress on the Rashba effect of two-dimensional (2D) organic–inorganic hybrid perovskites is summarized. The origin and magnitude of Rashba spin splitting, layer-dependent Rashba band splitting of 2D perovskites, the Rashba effect in 2D perovskite quantum dots, a 2D/3D perovskite composite, and 2D-perovskites-based van der Waals heterostructures are discussed. Moreover, applications of the 2D Rashba effect in circularly polarized light detection are reviewed. Finally, future research to modulate the Rashba strength in 2D perovskites is prospected, which is conceived to promote the optoelectronic and spintronic applications of 2D perovskites.

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Section: Rashba Effect In Two-dimensional Perovskitesmentioning

confidence: 99%

Research Progress on Rashba Effect in Two-Dimensional Organic–Inorganic Hybrid Lead Halide Perovskites

Guo,

Zhang,

et al. 2024

Nanomaterials

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“…One is to use intrinsically chiral materials. These materials could be chiral molecules, chiral polymers, or crystals with structures of chiral space groups, e.g., chiral perovskites. − The other is to build the chiral layer from intrinsically achiral structured materials by constructing the chiral shape, pattern, morphology, or assembly in the feature size from nanometer to micrometer scales. − The latter breaks the material limitations that principally any materials, organic or inorganic, conductor, semiconductor, or even insulator can be effective candidates. It brings about opportunities of converting achiral photodetective materials into chiral counterparts by various methods such as CPL irradiation, , templating, , grazing angle deposition, − laser direct writing, electron beam lithography, , chiral molecule induced nanocrystal synthesis, , or film growth. − Among the chiral candidates, inorganic semiconducting materials may have a tunable band structure, higher carrier mobility, and good stability, making them suitable for building high-performance CPL photodetectors. , …”

Section: Introductionmentioning

confidence: 99%

Chiral ZnO-CuO Nanorod Arrays for Circularly Polarized Photodetection

Hu,

Chen,

Sheng

et al. 2024

ACS Appl. Nano Mater.

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Circularly polarized light (CPL) photodetectors have attracted widespread interest from both the academic and industrial communities. Commonly, the key function layer of a film structured CPL photodetector is the chiral material layer that exhibits optoelectronic response differently to the left-handed and right-handed circularly polarized light. In this report, the heterostructured chiral ZnO-CuO nanorod arrays were successfully prepared by a strategy of combining the solution synthesis of ZnO nanorod arrays, grazing angle magnetron sputtering of Cu, and a thermal oxidation process. The chirality of left-/right-handedness was controlled by the sputtering angles and rotating direction. The morphology of nanorod arrays benefits light scattering and hence the absorption. The band structure of the ZnO-CuO heterojunction facilitates carrier transfer and transport. The CPL photodetectors based on the chiral ZnO-CuO nanorod arrays exhibit good performance with a responsivity (R), photocurrent asymmetry factor (g Iph), responsivity asymmetry factor (g res), and photodetectivity (D*) of 13.0 mA/W, 0.038, 0.22, and 8.3 × 1011 Jones achieved, respectively, under the 450 nm circular polarized light.

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Rashba Effect and Spin-Dependent Excitonic Properties in Chiral Two-Dimensional/Three-Dimensional Composite Perovskite Films

Cited by 2 publications

References 52 publications

Research Progress on Rashba Effect in Two-Dimensional Organic–Inorganic Hybrid Lead Halide Perovskites

Research Progress on Rashba Effect in Two-Dimensional Organic–Inorganic Hybrid Lead Halide Perovskites

Chiral ZnO-CuO Nanorod Arrays for Circularly Polarized Photodetection

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