Two-Dimensional Tellurium: Progress, Challenges, and Prospects

Shi, Zhe; Cao, Rui; Khan, Karim; Tareen, Ayesha Khan; Liu, Xiaosong; Liang, Weiyuan; Zhang, Ye; Ma, Chunyang; Guo, Zhinan; Luo, Xiaoling; Zhang, Han

doi:10.1007/s40820-020-00427-z

Cited by 187 publications

(138 citation statements)

References 229 publications

(273 reference statements)

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“…Nanodevices based on 2D Te have been reported to achieve outstanding performance. [ 18,25–29 ] For example, 2D Te field‐effect transistors exhibit huge on/off ratios (≈10 6 ) and high field‐effect mobilities (≈700 cm 2 V −1 s −1 ). [ 18 ] Te nanoflake‐based short‐wave infrared photodetectors with optical cavity substrates composed of Au/Al 2 O 3 possess high photoresponsivity.…”

Section: Introductionmentioning

confidence: 99%

Study of the Growth Mechanism of Solution‐Synthesized Symmetric Tellurium Nanoflakes at Atomic Resolution

Zhang

Gong

et al. 2021

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As a new member of 2D materials, 2D tellurium (Te) has recently attracted much attention due to its intriguing properties. Through hydrothermal processing, 2D Te with tunable thickness and size has been realized, and its growth mechanism has also been studied. However, the tailored growth of 2D Te nanoflakes with symmetrical morphologies and interfacial moiré fringes has never been reported. Here, 2D Te nanoflakes have been prepared using the hydrothermal method, and mirror‐symmetrical shapes (including “V‐shape,” “heart‐shape,” and “paper airplane‐shape”) with obvious moiré fringes in the middle of the nanoflakes are observed. Comprehensive transmission electron microscopy (TEM) techniques are utilized for structural characterization of these nanoflakes, especially the moiré fringes in the symmetry axis region of the nanoflakes. The systematic analyses of the moiré fringes and the observation of obvious overlapping edges of the composing nanoflakes from the cross‐sectional samples reveal the possible mechanism of morphological evolution for these symmetrical nanoflakes. These details may fill the research gap in the controllable growth of 2D Te nanomaterials, pave the way for the fabrication of 2D Te moiré superlattices and in‐plane homojunctions, and promote their future versatile applications.

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Section: Introductionmentioning

confidence: 99%

Study of the Growth Mechanism of Solution‐Synthesized Symmetric Tellurium Nanoflakes at Atomic Resolution

Zhang

Gong

et al. 2021

Small

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“…[ 8f ] Regarding elementary substances, Te possesses good semiconducting, [ 57 ] photoconductive, [ 58 ] thermoelectric, [ 59 ] topological, [ 60 ] and acoustic‐optic properties [ 61 ] for applications in electronics, sensors, optoelectronics, and energy devices. [ 62 ] Additionally, a series of compounds comprising Te, such as Bi 2 Te 3 [ 63 ] and WTe 2 , [ 64 ] exhibit quantum properties. Te atoms in bulk crystal are covalently bonded into 1D helical chains with three‐fold symmetry and aggregate into a hexagonal lattice via van der Waals (vdW) interactions.…”

Section: Atomic Structures and Electronic Propertiesmentioning

confidence: 99%

Epitaxial Growth of Main Group Monoelemental 2D Materials

Zhou

et al. 2020

Adv Funct Materials

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Since the discovery of graphene, 2D materials have attracted significant attention for their unique properties. Monoelemental 2D materials (ME2DMs) are of particular interest because of their superiority in synthetic exploration, excellent mobility, and wide range of band gaps over other 2D compounds. Substantial efforts are devoted to fabricate high‐quality materials through various substrates and reveal the growth mechanism at the atomic scale. In this review, the recent progress in the preparation of these ME2DMs is explored, the roles of different substrates is highlighted, and the challenges of and perspectives on their heterostructures is discussed.

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“…Except for lightning and imaging, RLs can also be used in optical sensors and optoelectronic devices 6 – 10 . 0D,2D, 3D heterostructures or polymers have been successfully developed for several optoelectronic applications 11 – 16 . Among them, 0D quantum dots (QDs), 2D graphdiyne, perovskite, metal–organic framework (MOF), and wrinkled polymers 10 , 17 – 20 , have been investigated as the light scattering materials of RLs.…”

Section: Introductionmentioning

confidence: 99%

Study of laser actions by bird’s feathers with photonic crystals

Chen

Tung

et al. 2021

Sci Rep

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Random lasers had been made by some biomaterials as light scattering materials, but natural photonic crystals have been rarely reported as scattering materials. Here we demonstrate the ability of natural photonic crystals to drive laser actions by sandwiched the feathers of the Turquoise-Fronted Amazon parrot and dye between two plastic films. Parrot feathers comprise abundant photonic crystals, and different color feathers compose of different ratios of the photonic crystal, which directly affect the feather reflectance. In this study, the multi-reflection scattering that occurred at the interface between the photonic crystal and gain media efficiently reduce the threshold; therefore, the more photonic crystal constitutes in the feathers; the lower threshold can be obtained. The random lasers can be easily made by the integration of bird feather photonic crystals and dye with a simple and sustainable manufacturing approach.

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Two-Dimensional Tellurium: Progress, Challenges, and Prospects

Cited by 187 publications

References 229 publications

Study of the Growth Mechanism of Solution‐Synthesized Symmetric Tellurium Nanoflakes at Atomic Resolution

Study of the Growth Mechanism of Solution‐Synthesized Symmetric Tellurium Nanoflakes at Atomic Resolution

Epitaxial Growth of Main Group Monoelemental 2D Materials

Study of laser actions by bird’s feathers with photonic crystals

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