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Feynman Lectures 50th anniversary celebration seminar series


Building a brain: The atomic switch network

Speaker: James K Gimzewski from the University of California in Los Angeles

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Cleantech

A look at how nanotechnology benefits solar cells, water treatment, wind turbines and other clean energy applications

Lab talk

Nanotechnology research highlights: find out what the authors have to say

Aligned carbon nanotubes and non-aqueous electroytes ramp up performance of supercapacitors

Straight nanoconduits enable fast movement of ions to and from the electrode surface

Stamped polymer top layer provides opportunity for more-efficient hybrid solar cells

Upper network of thin channels further enhances the performance of hybrid polymer-silicon nanowire devices

Core-shell nanoparticles further improve cycling stability of lithium-ion batteries

Combination of a high-capacity active core and an electroconductive shell shown to enhance battery performance

Synergistic effect of nanocrystal integration and process optimization ramps up polymer solar-cell efficiency

Texas Tech team investigates the photophysical properties of SWNT/P3HT composite as a function of semiconducting-SWNT fractions

Anomalous thickness-dependence of photocurrent explained for planar nano-heterojunction organic solar cells

Combined model shows that ideal thickness determined by more than just the exciton diffusion length

Antibody-assisted self-assembly applied to solar cells

Bio-directed manipulation of nanowires could help to make photocell and display fabrication more environmentally friendly

Nano-engineered carbons promise better gas storage materials for advanced transportation

Tunable pore space will allow developers to selectively optimize carbons for high volumetric or high gravimetric storage capacity to meet different vehicle requirements

Out-of-plane growth of CNTs on graphene for supercapacitor applications

3D structure vastly reduces self-aggregation of graphene flakes

Short nanogenerators may be good enough

Electro-mechanical modelling predicts that relatively short nanowires can be sufficient for high-efficiency nanogenerators

Polymer solar cell gets two-dimensional DNA lattice implant

DNA lattice acts as electron blocking layer and boosts power conversion efficiency by 10.2%

Graphene makes field emission devices flexible and more efficient

Metallic NW-graphene hybrid nanostructures point towards highly efficient and flexible field emission devices

Thin-film solar: low-cost synthesis of CZTS nanocrystals

Method uses inorganic metal salts as precursors, smaller amounts of coordinating solvent, and offers shorter reaction time and simpler post-reaction treatment

Easy-to-produce black silicon could unlock promising applications

High density and high aspect ratio nanowhiskers have many uses across a wide range of fields including solar energy, batteries and chemical sensing

Solar cell developers combine merits of nanotubes and nanoparticles

Coating TiO2 nanotubes with particles inside and out increases overall photon conversion efficiency of DSSCs

Nanowire arrays improve performance of thin-film solar cells

Replacing window layer with embedded or free-standing nanowire array puts cells on a path to 26.8% increase in power-conversion efficiency

Effective light trapping in single coaxial nanowires

Optimized hybrid silicon nanowire system gives dramatic increase in photocurrent

Compound surface textures maximize solar-energy harvesting

Nanowhiskers and micro-grooves overlaid to boost broadband antireflection and light trapping in silicon solar cells

Graphene hybrid advances solubility and fluorescence quenching

Chemical functionalization improves processing and could benefit electrochemical and photochemical devices

Multiple dye layers expand the spectral response of solar cells

KIST researchers use selective positioning method to generate higher photocurrent density