Photovoltaic and optoelectronic devices based on photon confinement effect

    公开(公告)号:US12032881B2

    公开(公告)日:2024-07-09

    申请号:US17322932

    申请日:2021-05-18

    摘要: A photon confinement theoretical model is proposed, and a solar cell structure model is designed based on the theoretical model, thereby providing a photonically-confined solar cell and optoelectronic device to effectively reduce the probability of photons escaping from the cell. The theoretical model is established by the following steps: obtaining a relationship between a photocurrent density and an incident photon energy; obtaining a relationship between a radiative recombination photocurrent density and the incident photon energy; determining a relationship between the radiative recombination photocurrent density and a total recombination photocurrent density; obtaining a relationship between the photocurrent density generated by the standard spectral irradiance, the total recombination photocurrent density and an external current density of the solar cell; obtaining an output open-circuit voltage of the cell; obtaining an output short-circuit current density of the cell; obtaining a fill factor (FF); and obtaining a maximum power conversion efficiency (PCE).

    NETWORKS AND TETHERS USING FIBER REINFORCED HIGH TEMPERATURE SUPERCONDUCTORS

    公开(公告)号:US20210210672A1

    公开(公告)日:2021-07-08

    申请号:US17100620

    申请日:2020-11-20

    IPC分类号: H01L39/14 H01F6/00 H01L31/04

    摘要: A device comprises a support net with nodes, wherein each node comprises a HTS photovoltaic-magnetic cell, wherein alignments of the HTS photovoltaic-magnetic cells are arranged with N-S in parallel alignment. A device comprises a tether comprising a plurality of HTS solenoids and a sheath, wherein a solenoid of the plurality of HTS solenoids comprises a high temperature superconducting material and reinforcing fiber. A device comprises propulsion ball or plate with tail, injected in propulsion channel; HTS solenoids disposed along walls of propulsion channel, wherein the propulsion ball or plate with tail are moved through the propulsion channel using magnetic field generated by HTS solenoids; and a collection channel.

    Method for preparing amorphous GeH under high pressure

    公开(公告)号:US10919762B1

    公开(公告)日:2021-02-16

    申请号:US16745566

    申请日:2020-01-17

    申请人: Jilin University

    摘要: The present invention provides a preparation method of amorphous GeH, and belongs to the field of preparation technologies of amorphous GeH. The preparation method provided in the present invention includes the following step: sealing crystalline GeH, a pressure calibration object, and a pressure transmitting medium in a cavity of a diamond anvil cell, and adjusting pressure in the cavity to obtain amorphous GeH. In the present invention, pressure is applied to the GeH in the sealed diamond anvil cell, to implement amorphization of the GeH at room temperature. In this way, impurities can hardly be found in the preparation method, and pure amorphous GeH can be obtained. In addition, the method provided in the present invention has simple operations and good repeatability.