公开(公告)号：US10901278B2

公开(公告)日：2021-01-26

申请号：US16498740

申请日：2018-10-10

Applicant: South China Normal University ,  Shenzhen Guohua Optoelectronics Co., Ltd. ,  Academy of Shenzhen Guohua Optoelectronics

Inventor： Guofu Zhou ,  Xiaowen Hu ,  Wei Zhao ,  Haitao Sun ,  Wenmin Yang ,  Lingling Shui

IPC: G02F1/1347 ,  G02F1/1334 ,  G02F1/137

Abstract: The present disclosure discloses an electroresponsive liquid crystal dimming device comprising a first light transmitting conductive substrate, a first polymer network stabilized liquid crystal layer, a positive liquid crystal layer, a second polymer network stabilized liquid crystal layer and a second light transmitting conductive substrate which are arranged in sequence; and the first polymer network stabilized liquid crystal layer and the second polymer network stabilized liquid crystal layer reflect the circularly polarized light having the same polarization direction. The conversion of the positive liquid crystals in each layer between different states is driven by changing the magnitude of the access voltage of the liquid crystal dimming device according to the present disclosure, thereby realizing the adjustment of blurring to transparent states and color to colorless states of the liquid crystal dimming device, having a good application prospect in the window glass, and home glass window, and the like.

公开(公告)号：US10237933B2

公开(公告)日：2019-03-19

申请号：US15490065

申请日：2017-04-18

Applicant: South China Normal University

Inventor： Huiqing Sun ,  Xian Yang ,  Zhiyou Guo ,  Yong Huang ,  Hongyong Huang ,  Jie Sun ,  Jing Huang ,  Zhuding Zhang ,  Yang Liu

IPC: H05B33/08 ,  H01L27/15 ,  H01L33/08 ,  H01L33/32 ,  H01L49/02 ,  H01L33/00 ,  H01L33/38 ,  H01L33/06 ,  H01L33/12 ,  H01L33/42 ,  H04B10/50 ,  H01L33/62 ,  H01L33/44 ,  H04B10/116 ,  H01L33/20

Abstract: A visible light communication LED having a spiral inductance coil and a circular core is provided, comprising a sapphire substrate provided with a positive electrode welding spot and a negative electrode welding spot, and a plurality of LED cores deposited on the sapphire substrate. The negative electrode of a former core is connected with the positive electrode of a latter core, and the positive electrode of the first core and the negative electrode of the last core are respectively connected to the positive electrode welding spot and the negative electrode welding spot on the substrate. According to the present invention, each of the LED cores is surrounded by a spiral inductance coil, and a pin of one end of the spiral inductance coil is connected via a connecting wire with the negative electrode of an adjacent LED core, while the other end is directly connected with the positive electrode of the LED core that is surrounded by the spiral inductance coil.

公开(公告)号：US09530845B2

公开(公告)日：2016-12-27

申请号：US14767301

申请日：2014-03-25

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Kunyuan Xu

IPC: H01L29/66 ,  H01L29/20 ,  H03B19/14 ,  H01L29/778

CPC classification number: H01L29/2003 ,  H01L29/778 ,  H03B19/14

Abstract: A frequency multiplier based on a low dimensional semiconductor structure, including an insulating substrate layer, a semiconductor conducting layer arranged on the surface of the insulating substrate layer, an insulating protective layer arranged on the surface of the semiconductor conducting layer, an insulating carving groove penetrating the semiconductor conducting layer, an inlet electrode arranged on the side surface of the semiconductor conducting layer, and an outlet electrode arranged on the side surface corresponding to the access electrode is provided. The semiconductor conducting layer comprises two two-dimensional, quasi-one-dimensional, or one-dimensional current carrying channels near to and parallel to each other. The frequency multiplier has advantages that the structure is simple, the process is easy to implement, no extra filter circuit needs to be added, dependence on material characteristics is little, and the selection range of materials is wide.

Abstract translation: 基于低维半导体结构的倍频器，包括绝缘基板层，布置在绝缘基板层的表面上的半导体导电层，布置在半导体导电层的表面上的绝缘保护层，穿透 设置半导体导电层，布置在半导体导电层的侧表面上的入口电极和布置在与存取电极相对应的侧表面上的出口电极。 半导体导电层包括彼此靠近并且彼此平行的两个二维，准一维或一维载流通道。 倍频器具有结构简单，易于实现的优点，不需要添加额外的滤波电路，材料特性依赖性小，材料选择范围广。

公开(公告)号：US12087868B2

公开(公告)日：2024-09-10

申请号：US17629343

申请日：2019-09-11

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Richard Notzel

IPC: H01L29/885 ,  H01L21/02 ,  H01L29/20 ,  H01L29/66 ,  H02M7/06

CPC classification number: H01L29/885 ,  H01L21/02381 ,  H01L21/02433 ,  H01L21/02488 ,  H01L21/0254 ,  H01L21/02631 ,  H01L29/2003 ,  H01L29/66204 ,  H02M7/06

Abstract: An epitaxial wafer, a method of manufacturing the epitaxial wafer, a diode, and a current rectifier are provided. The epitaxial wafer comprises a Si substrate layer; an insulating layer formed on the Si substrate layer; and a nitride semiconductor layer formed on a surface of the insulating layer facing away from the Si substrate layer; wherein the insulating layer has a thickness configured such that under a forward bias voltage, the insulating layer may allow electrons and holes to pass from one side to the other side of the insulating layer via quantum tunneling so as to allow a forward current flow.

公开(公告)号：US20230013770A1

公开(公告)日：2023-01-19

申请号：US17629794

申请日：2019-03-27

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Fuming CHEN

IPC: C02F1/461 ,  C02F1/26 ,  C02F1/42

Abstract: An ion removal device based on electrochemical and photoelectrochemical methods, and the application of energy conversion and storage are provided. In the ion removal process based on the electrochemical and photoelectrochemical fluidization battery device, the positive active material in the flow battery is the positive pole of device, the negative active material in the fluid battery is the negative pole of the device, and the salt solution is the electrolyte in the middle stream. The positive and negative active materials include organic materials such as 4-hydroxy-piperidinol oxide, riboflavin sodium phosphate or methyl viologen, which have the advantages of low raw material cost, environmental friendliness, high sustainability, excellent electrochemical performance, high specific capacity and good cycle stability etc. The electrolyte can be separated from the positive and negative active liquid flow materials according to the fixed sequence of self-assembly of fluid battery mold.

公开(公告)号：US20220356399A1

公开(公告)日：2022-11-10

申请号：US17732539

申请日：2022-04-29

Applicant: South China Normal University

Inventor： Tao Chen ,  Bo Yan ,  Jian Huang

IPC: C09K17/46 ,  B01J20/22 ,  B01J20/10 ,  B01J20/06 ,  B01J20/28 ,  B01J20/32 ,  B09C1/08

Abstract: A magnetic soil remediation agent for soil heavy metal pollution and a preparation method and application thereof are provided. The magnetic soil remediation agent is prepared by using remediation agent framework material and magnetic core material as raw materials, and heavy metal collector as modifier; said framework material is silicon dioxide activated by strong alkali; said magnetic core material comprises magnetic materials Fe3O4 and γ-Fe2O3; said modifier comprises ethylenediaminetetraacetic acid (EDTA, nitrilotriacetic acid trisodium salt (NTA, (S,S)-ethylenediamine-N,N-disuccinic acid trisodium salt (EDDS) and mercaptoethylamine. The remediation agent of the present invention can effectively passivate the heavy metals in the soil, reduce their available contents, and inhibit the absorption of heavy metals by plants.

公开(公告)号：US20220214298A1

公开(公告)日：2022-07-07

申请号：US17608973

申请日：2019-05-15

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Richard NOTZEL

IPC: G01N27/30 ,  H01L21/02

Abstract: Disclosed are an epitaxial wafer and a method of fabricating the same, and an electrochemical sensor, wherein the reference electrode comprises: a substrate (11); an InGaN layer (12) formed on a surface of the substrate (11) and having an In content between 20% and 60% so as to ensure that a transition from negatively charged surface states to positively charged surface states occurs within a composition range; and an InN layer (13) formed on a surface of the InGaN layer (12) facing away from the substrate (11) to act as a stabilization layer. The InGaN layer (12) with an In content between 20% and 60% allows generation of an electrochemical response independent of the concentration of a solution to be detected; and in addition, the InN layer (13) with a high density of intrinsic, positively charged surface states further improves the electrochemical stability of the reference electrode.

公开(公告)号：US11369627B2

公开(公告)日：2022-06-28

申请号：US16435677

申请日：2019-06-10

Applicant: South China Normal University

Inventor： Ruqiang Huang ,  Jinghui Wang ,  Qian Wang ,  Linlin Gao ,  Jingwen Zhang

IPC: A61K31/715 ,  A61P3/06 ,  C08B37/00

Abstract: The invention discloses a myrtle polysaccharide P1, the separation method thereof and the use in preparing hypolipidemic drugs therefor, wherein the P1 contains 6.74% of ribose, 1.73% of rhamnose, 60.06% of arabinose, 3.54% of xylose, 5.64% of mannose, 13.16% of glucose, and 9.13% of galactose. The experiment result shows that the myrtle polysaccharide P1 has a certain ability to bind cholate in vitro. Taking cholestyramine as a positive control and the binding rate of cholestyramine to each cholate as 100%, the relative binding rate of the myrtle polysaccharide P1 to sodium taurocholate, sodium glycocholate and sodium cholate was 25.28%, 44.56%, and 50.10%, respectively.

公开(公告)号：US20220190436A1

公开(公告)日：2022-06-16

申请号：US17605430

申请日：2020-10-14

Applicant: SOUTH CHINA NORMAL UNIVERSITY

Inventor： Weishan LI ,  Yucheng WEN ,  Huiyang CHEN ,  Jiawei CHEN ,  Yitong LU ,  Yanxia CHE

IPC: H01M50/426 ,  H01M50/449 ,  H01M10/0525 ,  H01M4/133 ,  H01M4/131 ,  H01M4/583 ,  H01M4/505 ,  H01M4/525

Abstract: Provided is a method for preparing a battery separator coating material, the method comprising: dissolving PVDF and a covalent organic backbone material in an organic solvent and stirring same until uniform. The mass ratio of the PVDF to the covalent organic backbone material to N-methylpyrrolidone is 20: (70-85):(5-10). When the material is applied to preparation of a lithium ion battery separator, the problem of metal dissolution when a transition metal oxide is used as a positive electrode material can be effectively solved. The prepared separator can effectively adsorb metal ions and prevent the metal ions from being deposited on a negative electrode during charging and discharging processes, such that the cycle performance of a transition metal oxide positive electrode material is improved.

公开(公告)号：US11143902B2

公开(公告)日：2021-10-12

申请号：US16491490

申请日：2017-11-15

Applicant: South China Normal University ,  Shenzhen Guohua Optoelectronics Co., Ltd. ,  G.H.S ADVANCED EQUIPMENT TECHNOLOGY CO., LTD.

Inventor： Guofu Zhou ,  Xiaowen Hu ,  Nan Li

IPC: G02F1/1334 ,  G02F1/137

Abstract: A total-reflection infrared reflection device and a preparation method thereof. The device includes two light-transmitting conductive substrates disposed oppositely, the two light-transmitting conductive substrates are packaged to form a seal cavity, in the seal cavity, opposite surfaces of the two light-transmitting conductive substrates are respectively coated with a first liquid crystal layer capable of reflecting left-handed polarized light and a second liquid crystal layer capable of reflecting right-handed polarized light, the first liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a left-handed spiral structure, the second liquid crystal layer includes a polymer network and a cholesteric liquid crystal with a right-handed spiral structure, the cholesteric liquid crystal with the left-handed spiral structure can reflect left-handed polarized light, and the cholesteric liquid crystal with the right-handed spiral structure can reflect right-handed polarized light.