公开(公告)号：US10418475B2

公开(公告)日：2019-09-17

申请号：US15824519

申请日：2017-11-28

Applicant: ARIZONA BOARD OF REGENTS ON BEHALFOF ARIZONA STATE UNIVERSITY ,  THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Srabanti Chowdhury ,  Maitreya Dutta ,  Robert Nemanich ,  Franz Koeck

IPC: H01L29/778 ,  H01L29/66 ,  H01L21/265 ,  H01L29/417 ,  H01L29/423 ,  H01L29/808 ,  H01L29/10 ,  H01L21/02 ,  H01L21/04 ,  H01L29/772 ,  H01L29/78 ,  H01L29/16 ,  H01L29/36 ,  H01L29/06 ,  H01L29/45

Abstract: A semiconductor structure, device, or vertical field effect transistor is comprised of a drain, a drift layer disposed in a first direction relative to the drain and in electronic communication with the drain, a barrier layer disposed in the first direction relative to the drift layer and in electronic communication with the drain, the barrier layer comprising a current blocking layer and an aperture region, a two-dimensional hole gas-containing layer disposed in the first direction relative to the barrier layer, a gate electrode oriented to alter an energy level of the aperture region when a gate voltage is applied to the gate electrode, and a source in ohmic contact with the two-dimensional hole gas-containing layer. At least one of an additional layer, the drain, the drift region, the current blocking layer, the two-dimensional hole gas-containing layer, and the aperture region comprises diamond.

公开(公告)号：US20220119295A1

公开(公告)日：2022-04-21

申请号：US17428966

申请日：2020-02-05

Applicant: ARIZONA BOARD OF REGENTS ON BEHALFOF ARIZONA STATE UNIVERSITY

Inventor： Klaus Lackner

IPC: C02F9/00 ,  C02F1/42 ,  C02F5/02

Abstract: A system for water rejuvenation for the regeneration of sorbent filters is disclosed. The system includes an anion reduction subsystem having a plurality of anionic exchange resin beds configured to remove impurity anions from a wash water used in a moisture-swing, direct-air-capture device. Each resin beds is in a vessel inside of which is configured to perform at least one of three operations: (1) conditioning resin beds by flushing them with carbonate or bicarbonate, (2) upgrading the wash water by removing impurity anions from the wash water reservoir, and (3) cleaning input water by exchanging impurity anions for carbonate or bicarbonate ions in the input feed. Each vessel cycles through these operations in the order (1), (2), (3). The system also includes a cation reduction subsystem that reduces the salinity of the wash water, and a divalent reduction subsystem that softens the wash water by removing divalent ions.