Band Gap‐Tunable Molybdenum Sulfide Selenide Monolayer Alloy

Su, Sheng Han; Hsu, Yu-Te; Chang, Yung; Chiu, Ming Hui; Hsu, Chang Lung; Hsu, Wen Hu; Chang, Wen‐Hao; He, Jr Hau; Li, Lain‐Jong

doi:10.1002/smll.201302893

Cited by 117 publications

(109 citation statements)

References 34 publications

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“…Ternary alloys have attracted intensive attention in recent years due to the varied properties through doping the third elements into the pure binary systems, which may provide an important versatility in low‐power consumption electronics and optoelectroncis 189, 190, 191, 192, 193, 194. For example, Pb 1–x Sn x Se is a narrow direct bandgap semiconductor with promising applications in mid‐infrared photodetection (1–3 μm), topological crystalline insulators and high‐speed logic devices due to the doping of Pb 104, 107, 195, 196.…”

Section: Preparation Methods and Characterizationsmentioning

confidence: 99%

Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family

et al. 2016

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As an important component of 2D layered materials (2DLMs), the 2D group IV metal chalcogenides (GIVMCs) have drawn much attention recently due to their earth‐abundant, low‐cost, and environmentally friendly characteristics, thus catering well to the sustainable electronics and optoelectronics applications. In this instructive review, the booming research advancements of 2D GIVMCs in the last few years have been presented. First, the unique crystal and electronic structures are introduced, suggesting novel physical properties. Then the various methods adopted for synthesis of 2D GIVMCs are summarized such as mechanical exfoliation, solvothermal method, and vapor deposition. Furthermore, the review focuses on the applications in field effect transistors and photodetectors based on 2D GIVMCs, and extends to flexible devices. Additionally, the 2D GIVMCs based ternary alloys and heterostructures have also been presented, as well as the applications in electronics and optoelectronics. Finally, the conclusion and outlook have also been presented in the end of the review.

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Section: Preparation Methods and Characterizationsmentioning

confidence: 99%

Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family

et al. 2016

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“…186 Even during occupational exposures to freshly prepared materials, transformations can occur in the human body, which at different times interacts with the as-produced material, the final transformation product, and potentially reactive intermediate states that arise during the dynamic transformation process. A variety of phase transformations have been observed in 2D materials, examples including S replacement by Se, 187 or alkali metal intercalation in TMDs, which converts the 2H phase to the metallic 1T phase. 188 Most studies to date have not used physiologically-relevant fluid phases, so the relevance of the reports to biological interactions is unclear.…”

Section: Fundamental Modes Of Biological Interactionmentioning

confidence: 99%

Biological and environmental interactions of emerging two-dimensional nanomaterials

Wang¹,

Zhu²,

Qiu³

et al. 2016

Chem. Soc. Rev.

239

210

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Two-dimensional materials have become a major focus in materials chemistry research worldwide with substantial efforts centered on synthesis, property characterization, and technological application. These high-aspect ratio sheet-like solids come in a wide array of chemical compositions, crystal phases, and physical forms, and are anticipated to enable a host of future technologies in areas that include electronics, sensors, coatings, barriers, energy storage and conversion, and biomedicine. A parallel effort has begun to understand the biological and environmental interactions of synthetic nanosheets, both to enable the biomedical developments and to ensure human health and safety for all application fields. This review covers the most recent literature on the biological responses to 2D materials and also draws from older literature on natural lamellar minerals to provide additional insight into the essential chemical behaviors. The article proposes a framework for more systematic investigation of biological behavior in the future, rooted in fundamental materials chemistry and physics. That framework considers three fundamental interaction modes: (i) chemical interactions and phase transformations, (ii) electronic and surface redox interactions, and (iii) physical and mechanical interactions that are unique to near-atomically-thin, high-aspect-ratio solids. Two-dimensional materials are shown to exhibit a wide range of behaviors, which reflect the diversity in their chemical compositions, and many are expected to undergo reactive dissolution processes that will be key to understanding their behaviors and interpreting biological response data. The review concludes with a series of recommendations for high-priority research subtopics at the “bio-nanosheet” interface that we hope will enable safe and successful development of technologies related to two-dimensional nanomaterials.

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“…For example, MoS 2 can provide novel ways of enhancing indirect-to-direct transition, 1 excitonic effect, [8][9][10] bandgap modulation [11][12][13] and piezoelectricity. 14 Notably, because both the conduction and valence band edges of it have two sets of energy-degenerate valleys at the corners of the first Brillouin zone, monolayer MoS 2 is an appealing material for valleytronics, 15-17 a more recently developed field compared with conventional electronics and spintronics.…”

Section: Introductionmentioning

confidence: 99%

Large-Scale Synthesis and Systematic Photoluminescence Properties of Monolayer MoS₂ on Fused Silica

Wan

Zhang

et al. 2016

ACS Appl. Mater. Interfaces

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Monolayer MoS2, with fascinating mechanical, electrical, and optical properties, has generated enormous scientific curiosity and industrial interest. Controllable and scalable synthesis of monolayer MoS2 on various desired substrates has significant meaning in both basic scientific research and device application. Recent years have witnessed many advances in the direct synthesis of single-crystalline MoS2 flakes or their polycrystalline aggregates on numerous diverse substrates, such as SiO2-Si, mica, sapphire, h-BN, and SrTiO3, etc. In this work, we used the dual-temperature-zone atmospheric-pressure chemical vapor deposition method to directly synthesize large-scale monolayer MoS2 on fused silica, the most ordinary transparent insulating material in daily life. We systematically investigated the photoluminescence (PL) properties of monolayer MoS2 on fused silica and SiO2-Si substrates, which have different thermal conductivity coefficients and thermal expansion coefficients. We found that there exists a stronger strain on monolayer MoS2 grown on fused silica, and the strain becomes more obvious as temperature decreases. Moreover, the monolayer MoS2 grown on fused silica exhibits the unique trait of a fractal shape with tortuous edges and has stronger adsorbability. The monolayer MoS2 grown on fused silica may find application in sensing, energy storage, and transparent optoelectronics, etc.

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Band Gap‐Tunable Molybdenum Sulfide Selenide Monolayer Alloy

Cited by 117 publications

References 34 publications

Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family

Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family

Biological and environmental interactions of emerging two-dimensional nanomaterials

Large-Scale Synthesis and Systematic Photoluminescence Properties of Monolayer MoS₂ on Fused Silica

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Band Gap‐Tunable Molybdenum Sulfide Selenide Monolayer Alloy

Cited by 117 publications

References 34 publications

Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family

Booming Development of Group IV–VI Semiconductors: Fresh Blood of 2D Family

Biological and environmental interactions of emerging two-dimensional nanomaterials

Large-Scale Synthesis and Systematic Photoluminescence Properties of Monolayer MoS2 on Fused Silica

Contact Info

Product

Resources

About

Large-Scale Synthesis and Systematic Photoluminescence Properties of Monolayer MoS₂ on Fused Silica