公开(公告)号：US11905445B2

公开(公告)日：2024-02-20

申请号：US16963824

申请日：2019-01-22

Applicant: Institute for Basic Science ,  POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Hee Cheul Choi ,  Jin Young Koo ,  Minkyung Lee

IPC: C09K11/06 ,  H10K50/11 ,  H10K50/125 ,  H10K71/00 ,  H10K85/40 ,  H10K85/60

CPC classification number: C09K11/06 ,  H10K85/40 ,  H10K85/657

Abstract: According to the present invention, an organic light-emitting composite and a method of manufacturing the organic light-emitting composite are provided. According to exemplary embodiments, an organic light-emitting composite includes a polymer matrix; a first light-emitting material provided in the polymer matrix; and a second light-emitting material provided in the polymer matrix and obtained by oxidizing the first light-emitting material, wherein the second light-emitting material may have the same molecular weight as that of the first light emitting-material.

公开(公告)号：US09580794B2

公开(公告)日：2017-02-28

申请号：US14225681

申请日：2014-03-26

Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Hee Cheul Choi ,  Jungah Kim

IPC: B05D3/00 ,  C23C14/06 ,  B05D3/04 ,  C01B31/02

CPC classification number: C23C14/0605 ,  B05D3/007 ,  B05D3/0486 ,  C01B32/152 ,  C01B32/168

Abstract: This disclosure relates to a method for preparing vertically grown nanostructures of C60 and conjugated molecules, including: forming a C60 film or a conjugated organic molecular film; and introducing the C60 film or conjugated organic molecular film and a solvent into an airtight container, and then conducting solvent vapor annealing. According to the preparation method, C60 molecules and conjugated molecules may be vertically grown under mild conditions by a simple process.

Abstract translation: 本公开涉及一种用于制备C60和共轭分子的垂直生长的纳米结构的方法，包括：形成C60膜或共轭有机分子膜; 并将C60膜或共轭有机分子膜和溶剂引入密封容器中，然后进行溶剂蒸气退火。 根据制备方法，C60分子和共轭分子可以通过简单的方法在温和条件下垂直生长。

公开(公告)号：US11437616B2

公开(公告)日：2022-09-06

申请号：US16352334

申请日：2019-03-13

Applicant: INSTITUTE FOR BASIC SCIENCE ,  POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Hee Cheul Choi ,  Hyungki Kim

IPC: H01M4/38 ,  C22C28/00 ,  C22F1/16 ,  H01M10/0525 ,  H01M4/134

Abstract: The disclosure describes a nanowire for an anode material of a lithium ion cell and a method of preparing the same. The nanowire includes silicon (Si) and germanium (Ge). The nanowire has a content of the silicon (Si) higher than a content of the germanium (Ge) at a surface thereof, and has the content of germanium (Ge) higher than the content of the silicon (Si) at an inner part thereof.

公开(公告)号：US20140302385A1

公开(公告)日：2014-10-09

申请号：US13919786

申请日：2013-06-17

Applicant: POSTECH ACADEMY-INDUSTRY FOUNDATION

Inventor： Hee Cheul Choi ,  Hyungki Kim

IPC: H01M4/36 ,  H01M4/04

CPC classification number: H01M4/366 ,  H01M4/0428 ,  H01M4/134 ,  H01M4/1395 ,  H01M4/625

Abstract: A negative electrode for a lithium (Li) secondary battery, a lithium secondary battery using the same, and a method of fabricating the same are provided. The negative electrode for the lithium secondary battery includes a germanium (Ge) structure and a graphene layer directly disposed on a surface of the germanium structure, and the graphene layer is grown on the surface of the germanium structure using a catalyst-free growth process. Accordingly, by directly disposing the graphene layer on the surface of the germanium structure, volume expansion of the germanium structure may be minimized during cycles of an alloying/dealloying reaction with lithium and high electronic conductivity can maintained during long cycles.

Abstract translation: 提供锂（Li）二次电池用负极，使用其的锂二次电池及其制造方法。 用于锂二次电池的负极包括锗（Ge）结构和直接设置在锗结构的表面上的石墨烯层，并且使用无催化剂生长工艺在石墨烯结构的表面上生长石墨烯层。 因此，通过在锗结构的表面上直接设置石墨烯层，可以在与锂的合金/脱离合成反应的循环期间使锗结构的体积膨胀最小化，并且在长时间循环期间可以保持高电子导电性。