摘要:
Crystal growth performed in situ facilitates interconnection of prefabricated nano-structures. The nano-structures are immersed in a growth solution having a controllable saturation condition. Changing the saturation condition of the solution modifies a size of the immersed nanowires. The solution includes a solute of a nano-structure precursor material. The saturation condition is changed to one or both etch material from a surface of the nano-structures and initiate crystal growth on the nano-structure surface. A nano-structure interconnection system includes the growth solution and equipment to deposit the prefabricated nano-structures on a substrate. An interconnected structure includes a plurality of nano-structures disposed on a substrate in a cluster and a liquid phase-grown crystal lattice on surfaces of the nano-structures to form physical interconnections between the plurality. An ink formulation includes the plurality of nano-structures suspended in the growth solution.
摘要:
Fuel delivery system and method for delivering liquid fuel to an electrode in a liquid-type fuel cell are disclosed. The liquid fuel is passively delivered to a reaction surface of an electrode by capillary force through a porous structure. The porous structure has a shape and a capillary force distribution to facilitate fuel flow, and can be part of a fuel cartridge for easy transportation and storage of fuel.
摘要:
A self-aligning nanowire includes a nanowire portion and an aligning member attached to the nanowire portion. The aligning member interacts with another aligning member on an adjacent self-aligning nanowire to align the nanowires together. A method of aligning nanowires includes providing a plurality of the self-aligning nanowires, suspending the plurality in a carrier solution, and depositing the suspended plurality on a substrate. An ink formulation includes the plurality of suspended self-aligning nanowires in the carrier solution. A method of producing the self-aligning nanowire includes providing and associating the nanowire portion and the aligning member such that the nanowire produced is self-aligning with another nanowire.
摘要:
A fuel cell assembly includes a membrane electrode assembly having a substantially solid polymer electrolyte membrane positioned between opposed catalyst layers. The polymer electrolyte membrane has a dimension that is relatively larger than a comparable dimension of at least one of the catalyst layers, such that the polymer electrolyte membrane has an uncovered portion. The fuel cell assembly also includes a gasket attached to the uncovered portion of the polymer electrolyte membrane. The gasket extends beyond a periphery of the polymer electrolyte membrane and the gasket is formed of a polymer material. In addition, the gasket is configured to substantially seal the edges of the polymer electrolyte membrane to substantially prevent leakage of fuel or oxidant between an anode side and a cathode side of the membrane electrode assembly.
摘要:
Compositions and methods for production of conductive paths can include a printable composition including a liquid carrier and a plurality of nanostructures. The plurality of nanostructures can have an aspect ratio of at least about 5:1 within the liquid carrier. Examples of nanostructures include nanobelts, nanoplates, nanodiscs, nanowires, nanorods, and mixtures of these materials. These printable compositions can be used to form a conductive path on a substrate. The printable composition can be applied to a substrate using any number of conventional printing techniques. Following application of the printable composition, at least a portion of the liquid carrier can be removed such that the nanostructures can be in sufficient contact to provide a conductive path. The nanostructures arranged in a conductive path can be sintered or used as a conductive material without sintering.
摘要:
Apparatus and methods of printing on electrically writable media and electrically writable displays are described. In one aspect, a printer for printing on an electrically writable medium includes a source of an invisible charge species, and a charge species projector. The charge species projector is operable to project charge species from the source onto the medium to electrically reorient switchable display elements in the medium. In another aspect, a portable storage device that includes a memory and an electrically writable medium is received. Data is written to the memory of the portable data storage device. The electrically writable medium of the portable data storage device is printed on by electrically reorienting switchable display elements in the medium. In another aspect, an electrically writable display includes an electrically writable medium that is incorporated into a continuous web having an outward-facing side and an inward-facing side. The outward-facing side of the continuous web presents a display surface of the electrically writable medium. The electrically writable display further includes a scroll system that is operable to scroll the display surface of the electrically writable medium through a display area.
摘要:
Crystal growth performed in situ facilitates interconnection of prefabricated nano-structures. The nano-structures are immersed in a growth solution having a controllable saturation condition. Changing the saturation condition of the solution modifies a size of the immersed nanowires. The solution includes a solute of a nano-structure precursor material. The saturation condition is changed to one or both etch material from a surface of the nano-structures and initiate crystal growth on the nano-structure surface. A nano-structure interconnection system includes the growth solution and equipment to deposit the prefabricated nano-structures on a substrate. An interconnected structure includes a plurality of nano-structures disposed on a substrate in a cluster and a liquid phase-grown crystal lattice on surfaces of the nano-structures to form physical interconnections between the plurality. An ink formulation includes the plurality of nano-structures suspended in the growth solution.
摘要:
A thin film electrolyte assembly includes a frame and a thin film at least partially contacting the frame. The thin film includes a metal layer having two opposed sides, a large surface area metal layer established on each of the two opposed sides of the metal layer, and an electrolyte membrane established on each of the large surface area metal layers.
摘要:
A method of forming a three-dimensional object comprises ejecting drops of liquefied material into a vat using an ejector; scanning the ejector in first and second mutually opposed directions to induce the drops of liquefied material from the ejector to deposit and solidify in a predetermined sequence to sequentially form layers of the three-dimensional object; supplying a viscous liquid into the vat to a level which is essentially level with the top of a most recently formed layer of the three-dimensional object; and raising the level of the viscous liquid in accordance with the formation of new layers.