In situ scattering of single gold nanorod coupling with monolayer transition metal dichalcogenides

Nanoscale ◽  
2019 ◽  
Vol 11 (43) ◽  
pp. 20734-20740
Author(s):  
Aiqin Hu ◽  
Weidong Zhang ◽  
Shuai Liu ◽  
Te Wen ◽  
Jingyi Zhao ◽  
...  
Keyword(s):  
Transition Metal ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Resonance Mode ◽  
Gold Nanorod ◽  
Plasmonic Resonance ◽  
Metal Dichalcogenides ◽  
In Situ Scattering

The plasmonic resonance mode of a gold nanorod redshifts, narrows, and amplifies after coupling with monolayer 2D materials.

scholarly journals Second-harmonic generation enhancement in monolayer transition-metal dichalcogenides by using an epsilon-near-zero substrate

2021 ◽  
Vol 3 (1) ◽  
pp. 272-278
Author(s):  
Pilar G. Vianna ◽  
Aline dos S. Almeida ◽  
Rodrigo M. Gerosa ◽  
Dario A. Bahamon ◽  
Christiano J. S. de Matos
Keyword(s):  
Dielectric Constant ◽  
Transition Metal ◽  
Harmonic Generation ◽  
Nonlinear Effect ◽  
Second Harmonic ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Transition Metal Dichalcogenide ◽  
Metal Dichalcogenides ◽  
Epsilon Near Zero

The scheme illustrates a monolayer transition-metal dichalcogenide on an epsilon-near-zero substrate. The substrate near-zero dielectric constant is used as the enhancement mechanism to maximize the SHG nonlinear effect on monolayer 2D materials.

Combined Healing and Doping of Transition Metal Dichalcogenides Through Molecular Functionalization

2021 ◽  
Author(s):  
Sai Manoj Gali ◽  
David Beljonne
Keyword(s):  
Transition Metal ◽  
Charge Transport ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Two Dimensional ◽  
Metal Dichalcogenides

Transition Metal Dichalcogenides (TMDCs) are emerging as promising two-dimensional (2D) materials. Yet, TMDCs are prone to inherent defects such as chalcogen vacancies, which are detrimental to charge transport. Passivation of...

scholarly journals Synthesis and characterisation of thin-film platinum disulfide and platinum sulfide

Nanoscale ◽  
2021 ◽  
Author(s):  
Conor Patrick Cullen ◽  
Cormac Ó Coileáin ◽  
John B McManus ◽  
Oliver Hartwig ◽  
David McCloskey ◽  
...  
Keyword(s):  
Thin Film ◽  
Transition Metal ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Metal Dichalcogenides ◽  
Group 10

Group-10 transition metal dichalcogenides (TMDs) are rising in prominence within the highly innovative field of 2D materials. While PtS2 has been investigated for potential electronic applications, due to its high...

scholarly journals 2D Materials: Re Doping in 2D Transition Metal Dichalcogenides as a New Route to Tailor Structural Phases and Induced Magnetism (Adv. Mater. 43/2017)

2017 ◽  
Vol 29 (43) ◽  
Author(s):  
Vidya Kochat ◽  
Amey Apte ◽  
Jordan A. Hachtel ◽  
Hiroyuki Kumazoe ◽  
Aravind Krishnamoorthy ◽  
...  
Keyword(s):  
Transition Metal ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Metal Dichalcogenides

Wrinkle and Near Resonance Effect on the Vibrational and Electronic properties in Compressed Monolayer MoSe2

2021 ◽  
Author(s):  
Yan Liu ◽  
Qiang Zhou ◽  
Yalan Yan ◽  
Liang Li ◽  
Jian Zhu ◽  
...  
Keyword(s):  
High Pressure ◽  
Optical Properties ◽  
Transition Metal ◽  
Electronic Properties ◽  
Resonance Effect ◽  
Transition Metal Dichalcogenides ◽  
Effective Technique ◽  
Near Resonance ◽  
Metal Dichalcogenides

Pressure has been considered as an effective technique to modulate the structural, electronic, and optical properties of transition metal dichalcogenides (TMDs) materials. Here, by performing in situ high pressure Raman,...

scholarly journals In Situ Optical Tracking of Electroablation in Two-Dimensional Transition-Metal Dichalcogenides

2018 ◽  
Vol 10 (47) ◽  
pp. 40773-40780 ◽  
Author(s):  
Anjli Kumar ◽  
Amritanand Sebastian ◽  
Saptarshi Das ◽  
Emilie Ringe
Keyword(s):  
Transition Metal ◽  
Transition Metal Dichalcogenides ◽  
Optical Tracking ◽  
Two Dimensional ◽  
Metal Dichalcogenides

scholarly journals Waterproof molecular monolayers stabilize 2D materials

2019 ◽  
Vol 116 (42) ◽  
pp. 20844-20849 ◽  
Author(s):  
Cong Su ◽  
Zongyou Yin ◽  
Qing-Bo Yan ◽  
Zegao Wang ◽  
Hongtao Lin ◽  
...  
Keyword(s):  
Transition Metal ◽  
Theoretical Analysis ◽  
2D Materials ◽  
Transition Metal Dichalcogenides ◽  
Water Molecules ◽  
Two Dimensional ◽  
Ambient Conditions ◽  
Molecular Monolayers ◽  
Metal Dichalcogenides ◽  
Van Der Waals Materials

Two-dimensional van der Waals materials have rich and unique functional properties, but many are susceptible to corrosion under ambient conditions. Here we show that linear alkylamines n-CmH2m+1NH2, with m = 4 through 11, are highly effective in protecting the optoelectronic properties of these materials, such as black phosphorus (BP) and transition-metal dichalcogenides (TMDs: WS2, 1T′-MoTe2, WTe2, WSe2, TaS2, and NbSe2). As a representative example, n-hexylamine (m = 6) can be applied in the form of thin molecular monolayers on BP flakes with less than 2-nm thickness and can prolong BP’s lifetime from a few hours to several weeks and even months in ambient environments. Characterizations combined with our theoretical analysis show that the thin monolayers selectively sift out water molecules, forming a drying layer to achieve the passivation of the protected 2D materials. The monolayer coating is also stable in air, H2 annealing, and organic solvents, but can be removed by certain organic acids.

scholarly journals Interface Engineering for Perovskite Solar Cells Based on 2D-Materials: A Physics Point of View

Materials ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 5843
Author(s):  
Rosaria Verduci ◽  
Antonio Agresti ◽  
Valentino Romano ◽  
Giovanna D’Angelo
Keyword(s):  
Solar Cells ◽  
Transition Metal ◽  
2D Materials ◽  
Low Cost ◽  
Transition Metal Dichalcogenides ◽  
Perovskite Solar Cells ◽  
Precursor Solution ◽  
Point Of View ◽  
Physical Mechanisms ◽  
Metal Dichalcogenides

The last decade has witnessed the advance of metal halide perovskites as a promising low-cost and efficient class of light harvesters used in solar cells (SCs). Remarkably, the efficiency of lab-scale perovskite solar cells (PSCs) reached a power conversion efficiency of 25.5% in just ~10 years of research, rivalling the current record of 26.1% for Si-based PVs. To further boost the performances of PSCs, the use of 2D materials (such as graphene, transition metal dichalcogenides and transition metal carbides, nitrides and carbonitrides) has been proposed, thanks to their remarkable optoelectronic properties (that can be tuned with proper chemical composition engineering) and chemical stability. In particular, 2D materials have been demonstrated as promising candidates for (i) accelerating hot carrier transfer across the interfaces between the perovskite and the charge extraction layers; (ii) improving the crystallization of the perovskite layers (when used as additives in the precursor solution); (iii) favoring electronic bands alignment through tuning of the work function. In this mini-review, we discuss the physical mechanisms underlying the increased efficiency of 2D material-based PSCs, focusing on the three aforementioned effects.

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