Two-dimensional Transition-metal Dichalcogenides for High-mobility and Low-power Transistors
نویسندگان
چکیده
منابع مشابه
Physical and chemical tuning of two-dimensional transition metal dichalcogenides.
The development of two-dimensional (2D) materials has been experiencing a renaissance since the adventure of graphene. Layered transition metal dichalcogenides (TMDs) are now playing increasingly important roles in both fundamental studies and technological applications due to their wide range of material properties from semiconductors, metals to superconductors. However, a material with fixed ...
متن کاملElectronics and optoelectronics of two-dimensional transition metal dichalcogenides.
The remarkable properties of graphene have renewed interest in inorganic, two-dimensional materials with unique electronic and optical attributes. Transition metal dichalcogenides (TMDCs) are layered materials with strong in-plane bonding and weak out-of-plane interactions enabling exfoliation into two-dimensional layers of single unit cell thickness. Although TMDCs have been studied for decade...
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In this article, we explore, experimentally, the impact of band-to-band tunneling on the electronic transport of double-gated WSe2 field-effect transistors (FETs) and Schottky barrier tunneling of holes in back-gated MoS2 FETs. We show that by scaling the flake thickness and the thickness of the gate oxide, the tunneling current can be increased by several orders of magnitude. We also perform n...
متن کاملPhotocarrier relaxation pathway in two-dimensional semiconducting transition metal dichalcogenides.
Two-dimensional crystals of semiconducting transition metal dichalcogenides absorb a large fraction of incident photons in the visible frequencies despite being atomically thin. It has been suggested that the strong absorption is due to the parallel band or 'band nesting' effect and corresponding divergence in the joint density of states. Here, we use photoluminescence excitation spectroscopy t...
متن کاملExciton radiative lifetimes in two-dimensional transition metal dichalcogenides.
Light emission in two-dimensional (2D) transition metal dichalcogenides (TMDs) changes significantly with the number of layers and stacking sequence. While the electronic structure and optical absorption are well understood in 2D-TMDs, much less is known about exciton dynamics and radiative recombination. Here, we show first-principles calculations of intrinsic exciton radiative lifetimes at lo...
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ژورنال
عنوان ژورنال: Physics and High Technology
سال: 2013
ISSN: 1225-2336
DOI: 10.3938/phit.22.011