Abstract: Separation of rhenium disulfide nanomaterials and related fluid density gradient media.

Abstract: The present teachings provide methods for providing populations of single-walled carbon nanotubes that are substantially monodisperse in terms of diameter, electronic type, and/or chirality. Also provided are single-walled carbon nanotube populations provided thereby and articles of manufacture including such populations.

Abstract: A rapid, scalable methodology for graphene dispersion and concentration with a polymer-organic solvent medium, as can be utilized without centrifugation, to enhance graphene concentration.

Abstract: A method of preparing a boron allotrope-organic lateral heterostructural article includes providing an article comprising a substrate comprising a portion thereof coupled to a boron allotrope comprising an elemental boron layer; generating an organic compound vapor from a solid organic compound source, said organic compound vapor having a higher enthalpy of adsorption on said substrate compared to enthalpy of adsorption on said boron allotrope; and contacting said organic compound vapor with said article to selectively deposit said organic compound on a substrate portion not coupled to said boron allotrope to provide a heterostructural article comprising said organic compound and said boron allotrope laterally adjacent one to the other and providing a lateral interface one with the other.

Abstract: Van der Waals heterojunctions are extended to semiconducting p-type single-walled carbon nanotube (s-SWCNT) and n-type film that can be solution-processed with high spatial uniformity at the wafer scale. The resulting large-area, low-voltage p-n heterojunctions can exhibit anti-ambipolar transfer characteristics with high on/off ratios. The charge transport can be efficiently utilized in analog circuits such as frequency doublers and keying circuits that are widely used, for example, in telecommunication and wireless data transmission technologies.

Abstract: A rapid, scalable methodology for graphene dispersion and concentration with a polymer-organic solvent medium, as can be utilized without centrifugation, to enhance graphene concentration.

Abstract: A logic gate and a cascaded logic family is described that uses the unique ambipolar behavior, e.g., of carbon nanotubes. A complementary VT-drop ambipolar carbon nanotube logic can provide a decrease in device count compared to previous ambipolar carbon nanotube field effect transistor logic structures, enabling power and/or speed improvements.

Abstract: Thermally activated memristors from solution-processed two-dimensional (2D) semiconductors, fabricating methods and applications of the same. The memristor includes a semiconductor film formed on a nanoporous membrane, and at least two electrodes spatial-apart formed on the semiconductor film and electrically coupled with the semiconductor film to define a channel in the semiconductor film between the at least two electrodes, where the channel has one or more filaments, one or more dendrite, or a combination of them formed in the semiconductor film. The underlying switching mechanism applies generally to a range of 2D semiconductors including, but not limited to, MoS2, MoSe2, WS2, ReS2, InSe, or related 2D semiconductor materials.

Abstract: A method of separating carbon nanotubes by electronic type includes centrifuging a carbon nanotube composition in contact with a first fluid medium comprising a first density gradient; and separating the carbon nanotube composition into two or more separation fractions. The carbon nanotube composition comprises two or more non-ionic amphiphilic surface active components and a carbon nanotube population comprising double-walled carbon nanotubes having a semiconducting outer wall (s-DWCNTs), and double-walled carbon nanotubes having a metallic outer wall (m-DWCNTs). The two or more separation fractions comprise a first separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of s-DWCNTs than the carbon nanotube population, and a second separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of m-DWCNTs than the carbon nanotube population.

Abstract: Articles comprising a boron allotrope and an organic compound having a lateral interface one with the other, together with method(s) of preparation of such articles.

Abstract: A rapid, scalable methodology for graphene dispersion with a polymer-organic solvent solution and subsequent solvent exchange, as can be utilized without centrifugation, to enhance graphene concentration.

Abstract: Van der Waals heterojunctions are extended to semiconducting p-type single-walled carbon nanotube (s-SWCNT) and n-type film that can be solution-processed with high spatial uniformity at the wafer scale. The resulting large-area, low-voltage p-n heterojunctions can exhibit anti-ambipolar transfer characteristics with high on/off ratios. The charge transport can be efficiently utilized in analog circuits such as frequency doublers and keying circuits that are widely used, for example, in telecommunication and wireless data transmission technologies.

Abstract: Graphene ink compositions as can be utilized with gravure and screen printing processes, to provide flexible electronic components with high-resolution printed graphene circuitry.

Abstract: A method of functionalizing carbon nanotubes with metallic moieties is disclosed. Carbon nanotubes are first associated with one or more binding moieties to provide carbon nanotubes encapsulated by the binding moieties. The encapsulated carbon nanotubes are then contacted with a metal salt or a metal complex that binds to the binding moieties. Reduction of the metal salt or metal complex provides carbon nanotubes functionalized with metal nanoparticles.

Abstract: Electrically conducting, biocompatible, biodegradable tissue growth comprising graphene flakes in a polymeric matrix are provided.

Abstract: Methods for the preparation of few-layer phosphorene, compositions thereof and related devices fabricated therefrom.

Abstract: A method of separating carbon nanotubes by electronic type includes centrifuging a carbon nanotube composition in contact with a first fluid medium comprising a first density gradient; and separating the carbon nanotube composition into two or more separation fractions. The carbon nanotube composition comprises two or more non-ionic amphiphilic surface active components and a carbon nanotube population comprising double-walled carbon nanotubes having a semiconducting outer wall (s-DWCNTs), and double-walled carbon nanotubes having a metallic outer wall (m-DWCNTs). The two or more separation fractions comprise a first separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of s-DWCNTs than the carbon nanotube population, and a second separation fraction comprising a carbon nanotube subpopulation comprising a higher percentage of m-DWCNTs than the carbon nanotube population.

Abstract: Graphene ink compositions comprising nitrocellulose and related methods of use comprising either thermal or photonic annealing.

Abstract: The present teachings provide methods for sorting nanotubes according to their wall number, and optionally further in terms of their diameter, electronic type, and/or chirality. Also provided are highly enriched nanotube populations provided thereby and articles of manufacture including such populations.

Abstract: The Present teachings provide, in part, methods of separating two-dimensional nanomaterials by atomic layer thickness. In certain embodiments, the present teachings provide methods of generating graphene nanomaterials having a controlled number of atomic layer(s).