Patents Assigned to Lingnan Normal University
  • Patent number: 12252641
    Abstract: The present disclosure belongs to the technical field of nanomaterial synthesis, and in particular, to a preparation method for a core-shell structure quantum dot. The preparation method provided by the present disclosure includes the following steps: in a protective gas atmosphere, mixing a cadmium source, an organic ligand, and an organic solvent with a first selenium source for a nucleation reaction to obtain an organic solution of a CdSe quantum dot core; and mixing the organic solution of the CdSe quantum dot core, a zinc source and an inorganic anion source for shell coating to obtain the core-shell structure quantum dot, where the inorganic anion source includes a second selenium source.
    Type: Grant
    Filed: March 30, 2023
    Date of Patent: March 18, 2025
    Assignee: Lingnan Normal University
    Inventors: Qinghua Li, Lingfeng Wang, Xuping Liu, Xiao Jin, Dongyu Li, Deng Wang, Jingke Bai, Bing Xu
  • Patent number: 12209057
    Abstract: A preparation method of a polymer-derived high-temperature ceramic thin film sensor is provided. Specifically, a sensitive layer precursor layer is prepared by spraying a sensitive layer precursor liquid on an alumina substrate, and the sensitive layer precursor liquid is obtained by mixing precursor liquid with conductive powder. A protective layer precursor liquid is prepared by spraying protective layer precursor liquid on the sensitive layer precursor layer, and the protective layer precursor liquid is obtained by mixing TiB2 nano-powder, insulating powder and the precursor liquid. The protective layer precursor layer, a solder and the sensitive layer precursor layer are simultaneously pyrolyzed by a one-time pyrolysis process, and thus a protective layer, the solder joints and the sensitive layer are obtained simultaneously. Thus, there is no need to pyrolyze the sensitive layer first, saving the time for pyrolyzing the sensitive layer.
    Type: Grant
    Filed: August 20, 2024
    Date of Patent: January 28, 2025
    Assignee: Lingnan Normal University
    Inventors: Zaifu Cui, Zhenguo Lu, Liwen Huang, Zhonghai Wang, Zitong Xu, Wenjin Duan, Bohuai Gou, Dingyun Mao, Xiaojun Chen, Xin Li, Guangzhou Sui
  • Publication number: 20210339357
    Abstract: A microchannel electrophoresis-assisted micro-ultrasonic machining apparatus based on a 3D printing mold includes a working platform, a power supply, a 3D printing mold, a working solution tank and an ultrasonic vibration system. The working platform is configured to secure the apparatus. The working solution tank is provided with electrophoresis-assisted electrodes. The ultrasonic vibration system is secured to the lower end of the transfer module. The positive electrode of the electrophoretic DC power supply is electrically connected to the tool and the negative electrode is electrically connected to the electrophoresis-assisted electrodes. A workpiece to be processed is assembled with a 3D printing mold. After assembly, the workpiece and the 3D printing mold are placed in the middle of the electrophoresis-assisted electrodes inside the working solution tank and arranged to correspond to the tool.
    Type: Application
    Filed: July 7, 2020
    Publication date: November 4, 2021
    Applicant: Lingnan Normal University
    Inventors: Haishan LIAN, Manfeng GONG, Deyun MO, Shuzhen JIANG, Xiaojun CHEN, Xingzao MA