国家/地区 韩国（5） 世界知识产权组织（4）
IPC部 C（5）
IPC大类 C09（4） C01（3） H01（3）
B82（2）
IPC小类 C01B（3） B82Y（2） C09K（2）
H01L（2）
IPC B82Y020/00（2） B82Y040/00（2） C01B031/04（2）
C09K011/65（2）
发明人 JEON S（5）
公开年
申请年
专利权人 KOREA ADVANCED SCI TECHNOLOGY INST（5）

Ink composition for security printing, and used in manufacture of security indicia, comprises dielectric matrix having hydroxyl group, graphene quantum dots dispersed in dielectric matrix, and graphene quantum dot composite having afterglow properties emitting phosphorescence at room temperature.

JEON S, PARK M, WOO J, PARK M S

Graphene quantum dot composite useful for electronic devices e.g. electroluminescent devices and flexible display devices, comprises dielectric matrix comprising metal oxynitride, and graphene quantum dots dispersed in dielectric matrix.

JEON S, PARK M, YOON H, WOO J, PARK M S

Manufacture of graphene flakes used in dispersion solution, involves impregnating positive/negative electrodes containing graphene precursor, with electrolyte containing metal salt of anionic organic monomer, applying voltage and separating.

JEON S, AZAM A, KIM J, WOO J S, MO K J, WOO J, MO K

Preparation of carbon nanotubes and graphene for forming conductive film, involves heat-treating mixture of carbon nanotube and graphene precursors and intercalating compound, peeling resultant in solvent, and removing impurities.

JEON S, KIM J, JIN K, JUNG M K, SEOK W J

Fabrication of graphene quantum dots used in e.g. electronic product, involves heating mixture of graphite powders with metallic hydrate salt to form intercalation compound by inserting metal ions, and redispersing in solvent.

JEON S, KIM B, SONG S, JEON S W, KIM B H, SONG S H