国家/地区 韩国（2）
IPC部 B（2） C（2）
IPC大类 C09（2）
IPC小类
IPC
发明人 PARK M（2）
公开年
申请年
专利权人 KOREA ADVANCED SCI TECHNOLOGY INST（2）

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