公开(公告)号：US11474027B1

公开(公告)日：2022-10-18

申请号：US17398963

申请日：2021-08-10

Applicant: Jilin University

Inventor： Quanjun Li ,  Zonglun Li ,  Haiyan Li ,  Bingbing Liu

IPC: G01N21/27 ,  H04N5/33 ,  H01L27/146 ,  G01J1/42

Abstract: A method for regulating a photoelectric spectral response range, including: pre-pressurizing a gasket material, and drilling a circular hole at the center of indentation as a sample chamber; padding the sample chamber with a layer of photoelectric material, where two ends of the photoelectric material each are connected to one platinum sheet as an electrode; respectively connecting the two electrodes to probes of a digital source-meter, and using the digital source-meter to apply a 5 V bias voltage to the photoelectric material; placing a pressure calibration substance for pressure calibration; applying a high pressure to the photoelectric material, to make a pressure in the sample chamber reach a preset pressure; irradiating a near-infrared laser onto the photoelectric material through diamonds, controlling the presence or absence of illumination, and using the digital source-meter to display a current-time curve at the preset pressure; and determining a photoelectric spectral response range.

公开(公告)号：US10919762B1

公开(公告)日：2021-02-16

申请号：US16745566

申请日：2020-01-17

Applicant: Jilin University

Inventor： Quanjun Li ,  Xiaoling Jing ,  Haiyang Zhao ,  Yi Du ,  Bingbing Liu

IPC: C01B6/06 ,  B01J3/03 ,  B01J3/06 ,  H01L31/0376 ,  H01L31/18 ,  H01L31/04

Abstract: 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.

公开(公告)号：US20240410747A1

公开(公告)日：2024-12-12

申请号：US18414426

申请日：2024-01-16

Applicant: Jilin University

Inventor： Quanjun LI ,  Lei Yue ,  Ran Liu ,  Bingbing Liu

IPC: G01J1/42 ,  H01L31/032 ,  H01L31/18

Abstract: The present disclosure relates to a method for high pressure regulation and control of photoelectric detection based on BiOBr, and relates to the technical field of photoelectric detection. An exemplary method includes inserting an insulation layer into a pressure chamber of a diamond anvil cell and adding BiOBr, putting a pressure-calibrating substance on a culet of the diamond anvil cell; pressurizing the pressure chamber by rotating a press bolt on the diamond anvil cell; and conducting photoelectric detection using the pressurized BiOBr, where two platinum sheets are disposed on the BiOBr as an electrode. The present disclosure enhances the photo-response speed and photo-responsivity of photoelectric detection.

公开(公告)号：US12030777B2

公开(公告)日：2024-07-09

申请号：US17535899

申请日：2021-11-26

Applicant: Jilin University

Inventor： Bingbing Liu ,  Mingguang Yao ,  Yuchen Shang ,  Zhaodong Liu ,  Jiajun Dong

IPC: C01B32/156

CPC classification number: C01B32/156 ,  C01P2002/02 ,  C01P2002/76 ,  C01P2004/60 ,  C01P2006/32 ,  C01P2006/40 ,  C01P2006/60 ,  C01P2006/80 ,  C01P2006/90

Abstract: The invention relates to a millimeter-sized bulk spa amorphous carbon material and a method of preparing the same, and the method comprises a step of performing a high-temperature and high-pressure (HTHP) treatment on C60 powder at a temperature of 450-1100° C., preferably 700-1000° C., more preferably 900-1000° C., and most preferably 1000° C., and a pressure of 20-37 GPa, preferably 20-30 GPa, and most preferably 27 GPa, so as to obtain the millimeter-sized bulk sp3 amorphous carbon material. The sp3 carbon content in the amorphous carbon material is adjustable by changing the temperature and pressure conditions, so that the sp3 content is greater than 80%, and the sp3 content of high-quality samples is close to 100%. The optical band gap and thermal conductivity of the series of amorphous carbon materials can be effectively adjusted. The obtained series of amorphous carbon materials have ultra-high hardnesses, high thermal conductivities, adjustable band gaps (1.90-2.79 eV) which exceed the ranges of the band gaps of amorphous silicon and germanium. As a result, a new space is opened up for the application of amorphous materials.

公开(公告)号：US12202222B1

公开(公告)日：2025-01-21

申请号：US18797808

申请日：2024-08-08

Applicant: Jilin University

Inventor： Zhaodong Liu ,  Kuo Hu ,  Ran Liu ,  Shucheng Liu ,  Di Yao ,  Xiaoming Zhang ,  Qiang Zhou ,  Bingbing Liu

IPC: B30B11/00

Abstract: A controllable rapid pressure loading technology for a large volume press is provided. A regular octahedra, plugs, diamond pistons, and a standard are included. The regular octahedra is provided with a cavity with openings at two ends of the cavity. The standard is placed in the cavity. The openings at two ends of the cavity are respectively blocked by the conductive plugs. The diamond piston is arranged between the standard and the plug. The diamond pistons arranged between the standard and the plug has high hardness and has the pressure transmission efficiency superior to that of a common ceramic plug, improving compression efficiency in sample cavity. A loading method of pre-charging a pressure to a pressure loading device first and then rapidly releasing to a pressure loading mold is used to match an improved pressure transmission component, which shortens the pressure loading time of the sample cavity.

公开(公告)号：US12085539B1

公开(公告)日：2024-09-10

申请号：US18427235

申请日：2024-01-30

Applicant: Jilin University

Inventor： Kuo Hu ,  Ran Liu ,  Dongchang Li ,  Shucheng Liu ,  Yue Pan ,  Zhaodong Liu ,  Bingbing Liu

IPC: G01N3/12 ,  G01N3/02

CPC classification number: G01N3/12 ,  G01N3/02 ,  G01N2203/0044

Abstract: A gas diaphragm driven rapid supercharging device based on a diamond anvil cell is provided which includes a gas diaphragm, a diamond anvil cell press, a hard steel shell and a gas release component. The gas diaphragm and the diamond anvil cell press are positioned inside the hard steel shell, the gas diaphragm is positioned below the diamond anvil cell press, a first opening is formed in a top of the hard steel shell, and a second opening is formed in a bottom of the hard steel shell. The gas release component passes through the second opening of the hard steel shell to be connected with the gas diaphragm through a gas path, and the gas release component is configured for releasing gas at a first inflation speed in a standard pressure experiment, and inflating the gas diaphragm at different driving pressures to obtain a pressure calibration curve.