Abstract:
An apparatus comprising a dispersion plate, a dispersion plate, the dispersion plate including input side openings connected to holes therein, the holes following a torturous path through the dispersion plate and configured to deliver dopants through output side openings of the dispersion plate.
Abstract:
A deposition apparatus comprising a vaporizer chamber configured to hold a solid precursor of a dopant element therein. Gas input and output lines are connected to the vaporizer chamber and flow rate controllers are coupled to each of the gas input and output lines. The flow rate controllers are configured to adjust a rate of carrier gas flow into and out of the vaporizer chamber through the gas input and output lines. The vaporizer chamber has a temperature controller and pressure controller to produce vapors of the solid precursor in the vaporizer chamber that can be carried with the carrier gas flow through the output line.
Abstract:
An apparatus includes a gas dispersal plate and an adapter structure. The gas dispersal plate has a plurality of gas dispersion orifices, wherein one or more of the gas dispersion orifices have a first portion with a first cross-section configured to allow entry of gas and a second portion having a second cross-section configured to allow exit of gas, the first cross-section being smaller than the second cross-section.
Abstract:
An apparatus includes a gas dispersal plate and an adapter structure. The gas dispersal plate has a plurality of gas dispersion orifices, wherein one or more of the gas dispersion orifices have a first portion with a first cross-section configured to allow entry of gas and a second portion having a second cross-section configured to allow exit of gas, the first cross-section being smaller than the second cross-section.
Abstract:
A chemical sensor is provided. The sensor includes at least one lightguiding element having an optical core. The lightguiding element comprises a layer of graphene situated in sufficient proximity to the core to exhibit evanescent wave absorption of optical energy in at least one optical mode guided in the core.