Engineering ultrafast charge transfer in a bismuthene/perovskite nanohybrid

Wang, Yingwei; Chen, Keqiang; Huang, Hao; Yu, Guoqing; Zeng, Bowen; Wang, Hui; Zhang, Feng; Wu, Leiming; Li, Jianqing; Xiao, Si; He, Jun; Zhang, Yupeng

doi:10.1039/c9nr00058e

Cited by 52 publications

(33 citation statements)

References 42 publications

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“…Black phosphorene possesses high carrier mobility, as well as thickness‐dependent bandgap covering the visible to MIR spectral range. In addition, its optical properties have been widely studied and the photodetectors show remarkably high performances, indicating that phosphorene is a promising candidate for photodetection …”

Section: Applications Of 2d V‐v Binary Materialsmentioning

confidence: 99%

2D V‐V Binary Materials: Status and Challenges

et al. 2019

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The ORCID identification number(s) for the author(s) of this article can be found under https://doi.org/10.1002/adma.201902352. 2D phosphorene, arsenene, antimonene, and bismuthene, as a fast-growing family of 2D monoelemental materials, have attracted enormous interest in the scientific community owing to their intriguing structures and extraordinary electronic properties. Tuning the monoelemental crystals into bielemental ones between group-VA elements is able to preserve their advantages of unique structures, modulate their properties, and further expand their multifunctional applications. Herein, a review of the historical work is provided for both theoretical predictions and experimental advances of 2D V-V binary materials. Their various intriguing electronic properties are discussed, including band structure, carrier mobility, Rashba effect, and topological state. An emphasis is also given to their progress in fabricated approaches and potential applications. Finally, a detailed presentation on the opportunities and challenges in the future development of 2D V-V binary materials is given.

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Section: Applications Of 2d V‐v Binary Materialsmentioning

confidence: 99%

2D V‐V Binary Materials: Status and Challenges

et al. 2019

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“…Non-linear optical properties of diverse 2D materials were investigated, including black phosphorus [6][7][8], transition metal dichalcogenides (TMDCs) [9,10], topological insulator [11][12][13], SnS [14,15], etc. The non-linear absorption properties of atomically-thin 2D-materials are exploited as saturable absorbers [16][17][18][19], optical diodes [20,21], and optical limiters [22].…”

Section: Introductionmentioning

confidence: 99%

Donor-Acceptor Type Reduced Graphene-Oxide and a Tin-Selenide Nanohybrid With Broad and Ultrafast Optical Limiting Properties

Wang

et al. 2020

Front. Phys.

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The non-linear absorption properties of reduced graphene-oxide (RGO) have been studied extensively but the optical limiting (OL) performance of RGO was always confined to visible light. In this study, by anchoring SnSe nanosheets onto the surface of RGO, the reduced graphene-oxide and a tin-selenide (SnSe/RGO) nanohybrid shows a broader reverse saturable absorption (RSA), ranging from 400 to 800 nm, and an enhanced non-linear optical (NLO) response. The improvement of the NLO absorption response is attributed to a multiphoton-absorption process and electron-transfer effect in this artificially constructed donor-acceptor system. Pump-probe experiments suggest a response time of ∼1.7-8 ps for the SnSe/RGO nanohybrid.

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“…[145] For the CsPbBr 3 -Bi heterojunctions, when Bi is few layered (≥3), the energy band structure leads to electron injection from the CsPbBr 3 QDs to Bi, whereas for monolayered Bi, its CB and VB lie higher than those of CsPbBr 3 QDs, and therefore the photoexcited electrons cannot transfer from CsPbBr 3 to monolayered Bi. [184] Bi 2 Se 3 is a secondgeneration topological insulator with metallic surface states. [185,186] Jiang and coworkers reported ultrafast exciton transfer (1.1 AE 0.2 ps) in CsPbBr 3 QDs and topological insulator Bi 2 Se 3 film heterojunctions.…”

Section: Interface Charge Separation and Transfermentioning

confidence: 99%

Perovskite Nano‐Heterojunctions: Synthesis, Structures, Properties, Challenges, and Prospects

Wang

2020

Small Structures

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Scientific and industrial interest on perovskite semiconductor materials has grown rapidly in recent years. Through the efforts of researchers professionals in chemistry, physics, materials and electronics, etc., many records based on perovskites have been and are being refreshed. The brilliant performances emerge not only from the excellent properties of perovskite themselves, but also originate from the composite material systems of hybridizing perovskites with heteromaterials. Herein, first, the crystal and nanostructures of perovskite materials, semiconductor-based heterojunctions, and the categories of perovskite heterojunction are fundamentally introduced. Then, the state-of-the-art synthesis methods, size and structure control, electron structure-related physical properties, and applications of the perovskite-based nano-heterojunctions are comprehensively reviewed. Finally, perspectives on tackling challenges and developing trends are discussed.

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Engineering ultrafast charge transfer in a bismuthene/perovskite nanohybrid

Abstract: 0-Dimensional (0D) CsPbBr3 QDs were integrated with 2D bismuthene to obtain a 0D/2D nanohybrid with tunable charge transfer efficiency.

Cited by 52 publications

References 42 publications

2D V‐V Binary Materials: Status and Challenges

2D V‐V Binary Materials: Status and Challenges

Donor-Acceptor Type Reduced Graphene-Oxide and a Tin-Selenide Nanohybrid With Broad and Ultrafast Optical Limiting Properties

Perovskite Nano‐Heterojunctions: Synthesis, Structures, Properties, Challenges, and Prospects

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