The biaxial strain induced properties of ReX<sub>2</sub> and ReXS (X = S, Se, Te) monolayers

Zong, Jia-Qi; Ji, Wei-xiao; Li, Ping; Wang, Pei-ji

doi:10.1088/2053-1591/ab7218

Cited by 4 publications

(3 citation statements)

References 32 publications

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“…15-0874), respectively. These results demonstrated that the polytypic M x Te y was successfully synthesized, and the crystal structure is illustrated in Figure B. ,− …”

Section: Resultsmentioning

confidence: 74%

A Universally EDTA-Assisted Synthesis of Polytypic Bismuth Telluride Nanoplates with a Size-Dependent Enhancement of Tumor Radiosensitivity and Metabolism In Vivo

et al. 2022

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Bismuth telluride (Bi 2 Te 3 ) is an available thermoelectric material with the lowest band gap among bismuth chalcogenides, revealing a broad application in photocatalysis. Unfortunately, its size and morphology related to a radio-catalysis property have rarely been explored. Herein, an ethylenediaminetetraacetic acid (EDTA)-assisted hydrothermal strategy was introduced to synthesize polytypic Bi 2 Te 3 nanoplates (BT NPs) that exhibit sizedependent radio-sensitization and metabolism characteristics in vivo. By simply varying the molar ratio of EDTA/Bi 3+ during the reaction, BT NPs with different sizes and morphologies were obtained. EDTA acting as chelating agent and "capping" agent contributed to the homogeneous growth of BT NPs by eliminating dangling bonds and reducing the surface energy of different facets. Further analyzing the size-dependent radio-sensitization mechanism, largersized BT NPs generated holes that preferentially catalyzed the conversion of OH − to •OH when irradiated with X-rays, while the smaller-sized BT NPs exhibited faster decay kinetics producing higher 1 O 2 levels to enhance radiotherapy effects. A metabolomic analysis revealed that larger-sized BT NPs were oxidized into Bi(O x ) in the liver via a citrate cycle pathway, whereas smaller-sized BT NPs accumulated in the kidney and were excreted in urine in the form of ions by regulating the metabolism of glutamate. In a cervical cancer model, BT NPs combined with X-ray irradiation significantly antagonized tumor suppression through the promotion of apoptosis in tumor cells. Consequently, in addition to providing a prospect of BT NPs as an efficient radio-sensitizer to boost the tumor radiosensitivity, we put forth a strategy that can be universally applied in synthesizing metal chalcogenides for catalysis-promoted radiotherapy.

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“…15-0874), respectively. These results demonstrated that the polytypic M x Te y was successfully synthesized, and the crystal structure is illustrated in Figure B. ,− …”

Section: Resultsmentioning

confidence: 74%

A Universally EDTA-Assisted Synthesis of Polytypic Bismuth Telluride Nanoplates with a Size-Dependent Enhancement of Tumor Radiosensitivity and Metabolism In Vivo

et al. 2022

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“…In traditional TMDs, such as MoS 2 and WS 2 , the bandgap switches from indirect in bulk to direct in monolayers due to the interlayer coupling and quantum confinement effect [5][6][7]. As a new member of TMDs, ReS 2 is semiconducting crystallites with a stable distorted-1T phase owing to interlayer registry and weak interlayer coupling [8][9][10]. The extremely weak interlayer bonding and low crystal symmetry lead to the bulk structure behaving as decoupled monolayers, i.e.…”

Section: Introductionmentioning

confidence: 99%

Pressure and strain engineering of the structural and electronic transitions in ReS₂

Liu

Xiao

et al. 2023

J. Phys.: Condens. Matter

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The distinctive crystal structure and anisotropic electrical characteristics of rhenium disulfide (ReS2) have garnered growing interest. Pressure and strain engineering has been used to modulate structural and electronic transition. Here, we present a comprehensive study on the high-pressure phase transition and strain tunable electronic properties of ReS2. At 7.5 GPa, there occurs a structural transition from distorted-1T to distorted-1T'. In addition, ReS2 has exactly opposite piezoresistive effects along the two principle axes in the plane. This study shows that pressure and strain may be used to tune the characteristics of ReS2 for future optoelectronic applications.

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“…New two-dimensional materials have been therefore developed, which possess a wide band gap and a graphene-like structure. Transition metal disulphides (TMDs) are considered to meet these requirements and are therefore attractive to become a research hotspot [4][5][6][7][8]. TMDs have the ability to achieve direct-indirect band gap conversion by controlling the number of layers.…”

Section: Introductionmentioning

confidence: 99%

Effect of external electric field on the electronic structure of MoSe₂/Arsenene heterojunction

Wang,

Liu,

Wei

et al. 2023

Mod. Phys. Lett. B

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In this paper, the effects of the thermostability, band structure, and the external electric field on the electronic structure of MoSe2/Arsenene heterojunction are calculated based on the density functional theory. The calculation results show that the MoSe2/Arsenene heterojunction is a type-II heterojunction with a bandgap of 0.89[Formula: see text]eV. When MoSe2 and arsenene combine by van der Waals force, the electrons are transferred from MoSe2 to arsenene, the holes are transferred from arsenene to MoSe2, with the direction of the internal electric field from MoSe2 to arsenene. The MoSe2/Arsenene heterojunction with valence band top and conduction band bottom contributed by arsenene and MoSe2, respectively, shows excellent thermostability at room temperature. The external electric field can effectively modulate the electronic structure of heterojunction. When the electric field is negative, electrons are transferred from MoSe2 to arsenene and holes from arsenene to MoSe2. The Fermi level of arsenene moves down while that of MoSe2 moves up. When the electric field is positive, the direction of electron and hole transfer are opposite to that when the electric field is negative. The Fermi energy level of arsenene and MoSe2 also move in the opposite direction.

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The biaxial strain induced properties of ReX₂ and ReXS (X = S, Se, Te) monolayers

Cited by 4 publications

References 32 publications

A Universally EDTA-Assisted Synthesis of Polytypic Bismuth Telluride Nanoplates with a Size-Dependent Enhancement of Tumor Radiosensitivity and Metabolism In Vivo

A Universally EDTA-Assisted Synthesis of Polytypic Bismuth Telluride Nanoplates with a Size-Dependent Enhancement of Tumor Radiosensitivity and Metabolism In Vivo

Pressure and strain engineering of the structural and electronic transitions in ReS₂

Effect of external electric field on the electronic structure of MoSe₂/Arsenene heterojunction

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The biaxial strain induced properties of ReX2 and ReXS (X = S, Se, Te) monolayers

Cited by 4 publications

References 32 publications

A Universally EDTA-Assisted Synthesis of Polytypic Bismuth Telluride Nanoplates with a Size-Dependent Enhancement of Tumor Radiosensitivity and Metabolism In Vivo

A Universally EDTA-Assisted Synthesis of Polytypic Bismuth Telluride Nanoplates with a Size-Dependent Enhancement of Tumor Radiosensitivity and Metabolism In Vivo

Pressure and strain engineering of the structural and electronic transitions in ReS2

Effect of external electric field on the electronic structure of MoSe2/Arsenene heterojunction

Contact Info

Product

Resources

About

The biaxial strain induced properties of ReX₂ and ReXS (X = S, Se, Te) monolayers

Pressure and strain engineering of the structural and electronic transitions in ReS₂

Effect of external electric field on the electronic structure of MoSe₂/Arsenene heterojunction