Patents by Inventor Qiao-Zhi Guan

Qiao-Zhi Guan has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • METHOD FOR PREPARING LEAD IODIDE AND PEROVSKITE FILM
    Publication number: 20230102199
    Abstract: Provided is a method for preparing lead iodide, which controls the crystal form of lead iodide through temperature, including: dissolving a lead compound in a first acid solution and adding an iodine compound to form a reaction solution including the first lead iodide; and heating the reaction solution to a temperature of 60° C. or more and standing at a constant temperature, to obtain the second lead iodide, wherein a peak intensity of the (003) crystal plane of the second lead iodide is greater than or equal to a peak intensity of the (110) crystal plane. Provided is also a method for preparing the perovskite film.
    Type: Application
    Filed: January 12, 2022
    Publication date: March 30, 2023
    Inventors: Pei-Ting Chiu, Yung-Liang Tung, Shih-Hsiung Wu, Kuo-Wei Huang, Jung-Pin Chiou, Jen-An Chen, Qiao-Zhi Guan