The Experts below are selected from a list of 1454835 Experts worldwide ranked by ideXlab platform
Mark C. Hersam - One of the best experts on this subject based on the ideXlab platform.
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Functional inks and printing of Two-Dimensional Materials
Chemical Society Reviews, 2018Co-Authors: Guohua Hu, Leonard W. T. Ng, Christopher G. Jones, Richard C. T. Howe, Joohoon Kang, Mark C. Hersam, Tawfique HasanAbstract:Graphene and related Two-Dimensional Materials provide an ideal platform for next generation disruptive technologies and applications. Exploiting these solution-processed Two-Dimensional Materials in printing can accelerate this development by allowing additive patterning on both rigid and conformable substrates for flexible device design and large-scale, high-speed, cost-effective manufacturing. In this review, we summarise the current progress on ink formulation of Two-Dimensional Materials and the printable applications enabled by them. We also present our perspectives on their research and technological future prospects.
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electronic transport in two dimensional Materials
Annual Review of Physical Chemistry, 2018Co-Authors: Vinod K Sangwan, Mark C. HersamAbstract:Two-Dimensional (2D) Materials have captured the attention of the scientific community due to the wide range of unique properties at nanometer-scale thicknesses. While significant exploratory research in 2D Materials has been achieved, the understanding of 2D electronic transport and carrier dynamics remains in a nascent stage. Furthermore, because prior review articles have provided general overviews of 2D Materials or specifically focused on charge transport in graphene, here we instead highlight charge transport mechanisms in post-graphene 2D Materials, with particular emphasis on transition metal dichalcogenides and black phosphorus. For these systems, we delineate the intricacies of electronic transport, including band structure control with thickness and external fields, valley polarization, scattering mechanisms, electrical contacts, and doping. In addition, electronic interactions between 2D Materials are considered in the form of van der Waals heterojunctions and composite films. This review conc...
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electronic transport in two dimensional Materials
arXiv: Materials Science, 2018Co-Authors: Vinod K Sangwan, Mark C. HersamAbstract:Two-Dimensional (2D) Materials have captured the attention of the scientific community due to the wide range of unique properties at nanometer-scale thicknesses. While significant exploratory research in 2D Materials has been achieved, the understanding of 2D electronic transport and carrier dynamics remains in a nascent stage. Furthermore, since prior review articles have provided general overviews of 2D Materials or specifically focused on charge transport in graphene, here we instead highlight charge transport mechanisms in post-graphene 2D Materials with particular emphasis on transition metal dichalcogenides and black phosphorus. For these systems, we delineate the intricacies of electronic transport including bandstructure control with thickness and external fields, valley polarization, scattering mechanisms, electrical contacts, and doping. In addition, electronic interactions between 2D Materials are considered in the form of van der Waals heterojunctions and composite films. This review concludes with a perspective on the most promising future directions in this fast-evolving field.
G. A. Steele - One of the best experts on this subject based on the ideXlab platform.
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Deterministic transfer of Two-Dimensional Materials by all-dry viscoelastic stamping
2D Materials, 2014Co-Authors: Andres Castellanos-gomez, Michele Buscema, Rianda Molenaar, Vibhor Singh, Laurens Janssen, Herre S. J. Van Der Zant, G. A. SteeleAbstract:The deterministic transfer of Two-Dimensional crystals constitutes a crucial step towards the fabrication of heterostructures based on the artificial stacking of Two-Dimensional Materials. Moreover, controlling the positioning of Two-Dimensional crystals facilitates their integration in complex devices, which enables the exploration of novel applications and the discovery of new phenomena in these Materials. To date, deterministic transfer methods rely on the use of sacrificial polymer layers and wet chemistry to some extent. Here, we develop an all-dry transfer method that relies on viscoelastic stamps and does not employ any wet chemistry step. This is found to be very advantageous to freely suspend these Materials as there are no capillary forces involved in the process. Moreover, the whole fabrication process is quick, efficient, clean and it can be performed with high yield.
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deterministic transfer of two dimensional Materials by all dry viscoelastic stamping
arXiv: Mesoscale and Nanoscale Physics, 2013Co-Authors: Andres Castellanosgomez, Michele Buscema, Rianda Molenaar, Vibhor Singh, Laurens Janssen, Herre S. J. Van Der Zant, G. A. SteeleAbstract:Deterministic transfer of Two-Dimensional crystals constitutes a crucial step towards the fabrication of heterostructures based on artificial stacking of Two-Dimensional Materials. Moreover, control on the positioning of Two-Dimensional crystals facilitates their integration in complex devices, which enables the exploration of novel applications and the discovery of new phenomena in these Materials. Up to date, deterministic transfer methods rely on the use of sacrificial polymer layers and wet chemistry to some extent. Here, we develop an all-dry transfer method that relies on viscoelastic stamps and does not employ any wet chemistry step. This is found very advantageous to freely suspend these Materials as there are no capillary forces involved in the process. Moreover, the whole fabrication process is quick, efficient, clean, and it can be performed with high yield.
Vinod K Sangwan - One of the best experts on this subject based on the ideXlab platform.
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electronic transport in two dimensional Materials
Annual Review of Physical Chemistry, 2018Co-Authors: Vinod K Sangwan, Mark C. HersamAbstract:Two-Dimensional (2D) Materials have captured the attention of the scientific community due to the wide range of unique properties at nanometer-scale thicknesses. While significant exploratory research in 2D Materials has been achieved, the understanding of 2D electronic transport and carrier dynamics remains in a nascent stage. Furthermore, because prior review articles have provided general overviews of 2D Materials or specifically focused on charge transport in graphene, here we instead highlight charge transport mechanisms in post-graphene 2D Materials, with particular emphasis on transition metal dichalcogenides and black phosphorus. For these systems, we delineate the intricacies of electronic transport, including band structure control with thickness and external fields, valley polarization, scattering mechanisms, electrical contacts, and doping. In addition, electronic interactions between 2D Materials are considered in the form of van der Waals heterojunctions and composite films. This review conc...
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electronic transport in two dimensional Materials
arXiv: Materials Science, 2018Co-Authors: Vinod K Sangwan, Mark C. HersamAbstract:Two-Dimensional (2D) Materials have captured the attention of the scientific community due to the wide range of unique properties at nanometer-scale thicknesses. While significant exploratory research in 2D Materials has been achieved, the understanding of 2D electronic transport and carrier dynamics remains in a nascent stage. Furthermore, since prior review articles have provided general overviews of 2D Materials or specifically focused on charge transport in graphene, here we instead highlight charge transport mechanisms in post-graphene 2D Materials with particular emphasis on transition metal dichalcogenides and black phosphorus. For these systems, we delineate the intricacies of electronic transport including bandstructure control with thickness and external fields, valley polarization, scattering mechanisms, electrical contacts, and doping. In addition, electronic interactions between 2D Materials are considered in the form of van der Waals heterojunctions and composite films. This review concludes with a perspective on the most promising future directions in this fast-evolving field.
Luigi Colombo - One of the best experts on this subject based on the ideXlab platform.
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Electronics based on Two-Dimensional Materials
Nature Nanotechnology, 2014Co-Authors: Gianluca Fiori, Daniel Neumaier, Alan Seabaugh, Sanjay K. Banerjee, Giuseppe Iannaccone, Francesco Bonaccorso, Tomas Palacios, Luigi ColomboAbstract:The compelling demand for higher performance and lower power consumption in electronic systems is the main driving force of the electronics industry's quest for devices and/or architectures based on new Materials. Here, we provide a review of electronic devices based on Two-Dimensional Materials, outlining their potential as a technological option beyond scaled complementary metal-oxide-semiconductor switches. We focus on the performance limits and advantages of these Materials and associated technologies, when exploited for both digital and analog applications, focusing on the main figures of merit needed to meet industry requirements. We also discuss the use of Two-Dimensional Materials as an enabling factor for flexible electronics and provide our perspectives on future developments.
Joseba Alberdirodriguez - One of the best experts on this subject based on the ideXlab platform.
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microscopic origin of the apparent activation energy in diffusion mediated monolayer growth of two dimensional Materials
Journal of Physical Chemistry C, 2017Co-Authors: M A Gosalvez, Joseba AlberdirodriguezAbstract:Current trends indicate that mass production of high-quality, Two-Dimensional Materials will likely be based on the use of on-surface synthesis (OSS) and/or chemical vapor deposition (CVD) on selected substrates. However, the success of these techniques heavily relies on a deeper understanding of terrace and perimeter diffusion of the adspecies across and around many self-generated, mobile clusters, and/or motionless islands with a variety of shapes (dendritic, compact, irregular, polygonal, ...). We show that, for typical monolayer growth conditions at constant deposition rate, the total square distance traveled by all adsorbed particles departs from the total number of diffusion hops due to the onset of correlations between subsequent hops along the perimeters of a growing density of obstacles. As a result, we propose a new expression to determine the tracer diffusivity of the adparticles, directly providing a simple understanding of the temperature and coverage dependence of this observable. Most impor...
