摘要:
An in-chamber plasma source in a deposition reactor system includes an array of microcavity or microchannel plasma devices having a first electrode and a second electrode isolated from plasma in microcavities or microchannels. An inlet provides connection to deposition precursor. A region interacts deposition precursor with plasma. An outlet directs precursor dissociated with the plasma onto a substrate for deposition. A reactor system includes a substrate holder across from the outlet, a chamber enclosing the in-chamber plasma source and the substrate holder, an exhaust from the chamber, and conduit supplying precursors from sources or bubblers to the inlet. A reactor system can conduct plasma enhanced atomic layer deposition at high pressures and is capable of forming a complete layer in a single cycle.
摘要:
A laser pumping method pumps a primary amount of energy into a laser medium to populate an intermediate level near an upper laser level. A lesser amount of energy is pumped into the laser medium to populate an excited level that lies above the upper laser level and transfers atomic or molecular population to the upper laser level by a nonradiative process. A laser device includes a laser medium supporting four levels, including a lower laser level, an upper laser level, an excited level above the laser level from which population transfers to the upper laser level via nonradiative transition, and an intermediate level within a few kT of the upper laser level.
摘要:
The invention provides methods and systems for water dissociation with microplasma generated in microchannel plasma arrays or chips. Preferred methods and systems introduce water vapor into a microchannel plasma array. Electrical power is applied to the microchannel plasma array to create a plasma chemical reaction of the water vapor in the micorchannel plasma array. Dissociated hydrogen and/or oxygen gas is collected at an output of the microchannel plasma array. The water vapor can be entrained in a carrier gas, but is preferably introduced without carrier gas. Direct introduction of water vapor has been demonstrated to provide efficiencies at an above 60%. The use of carrier gas reduces efficiency, but still exceeds efficiencies of prior methods discussed in the background.
摘要:
A preferred modular microplasma microchannel reactor device includes a microchannel array arranged with respect to electrodes for generation of plasma and isolated by dielectric from the electrodes. A cover covers a central portion of the microchannel array, while leaving end portions of the microchannel array exposed. A gas inlet and product outlet are arranged to permit flow into, through and out of the microchannel array. Reactor modules of the invention include pluralities of the modular reactor devices. The reactors devices can be arranged by a housing or a frame to be in fluid communication. A system of the invention arranges pluralities of modules. Preferred module housings, frames and reactors include structural features to create alignments and connections. Preferred modules include fans to circulate feedstock and reaction product. Other reactor devices provide plasma actuation for flow.
摘要:
A hybrid plasma semiconductor device has a thin and flexible semiconductor base layer. An emitter region is diffused into the base layer forming a pn-junction. An insulator layer is upon one side the base layer and emitter region. Base and emitter electrodes are isolated from each other by the insulator layer and electrically contact the base layer and emitter region through the insulator layer. A thin and flexible collector layer is upon an opposite side of the base layer. A microcavity is formed in the collector layer and is aligned with the emitter region. Collector electrodes are arranged to sustain a microplasma within the microcavity with application of voltage to the collector electrodes. A depth of the emitter region and a thickness of the base layer are set to define a predetermined thin portion of the base layer as a base region between the emitter region and the microcavity. Microplasma generated in the microcavity serves as a collector. Logic devices are provided in multiple sub collector and sub emitter microplasma devices formed in thin and flexible or not flexible semiconductor materials.
摘要:
Preferred embodiment flexible and on wafer hybrid plasma semiconductor devices have at least one active solid state semiconductor region; and a plasma generated in proximity to the active solid state semiconductor region(s). A preferred device is a hybrid plasma semiconductor device having base, emitting and microcavity collector regions formed on a single side of a device layer. Visible or ultraviolet light is emitted during operation by plasma collectors in the array. In preferred embodiments, individual PBJTs in the array serve as sub-pixels of a full-color display.
摘要:
Preferred embodiment flexible and on wafer hybrid plasma semiconductor devices have at least one active solid state semiconductor region; and a plasma generated in proximity to the active solid state semiconductor region(s). A preferred device is a hybrid plasma semiconductor device having base, emitting and microcavity collector regions formed on a single side of a device layer. Visible or ultraviolet light is emitted during operation by plasma collectors in the array. In preferred embodiments, individual PBJTs in the array serve as sub-pixels of a full-color display.
摘要:
The invention provides a microplasma photonic crystal for reflecting, transmitting and/or storing incident electromagnetic energy includes a periodic array of elongate microtubes confining microplasma therein and having a column-to-column spacing, average electron density and plasma column diameter selected to produce a photonic response to the incident electromagnetic energy entailing the increase or suppression of crystal resonances and/or shifting the frequency of the resonances. The crystal also includes electrodes for stimulating microplasma the elongated microtubes Electromagnetic energy can be interacted with the periodic array of microplasma to reflect, transmit and/or trap the incident electromagnetic energy.
摘要:
A resonator is provided that includes opposing mirrors arranged substantially parallel to each other and separated to confine reflections for gain. A gain medium is between the opposing mirrors. A pump pumps the gain medium. At least one microrefractive element, or tens, hundreds, thousands, millions or more, stabilizes the resonator. The refractive element is disposed between the opposing mirrors and is configured to support a laser beam at a position of the refractive element. A method for producing laser light directs pump light onto one or a plurality of microrefractive elements. Reflections from the one or a plurality of microrefractive elements are confined in a resonator volume. Gain is provided in the resonator volume. Laser energy is emitted from the resonator volume.
摘要:
Logic devices are provided in multiple sub-collector and sub-emitter microplasma devices formed in thin and flexible, or inflexible, semiconductor materials. Logic operations are provided with one of a plurality of microplasmas forming sub-collectors with a common emitter, or a common collector plasma with a plurality of sub-emitter regions in a solid state semi-conductor pn-junction, and generating a logic output from an electrode, based upon electrode inputs to two other electrodes.