国家/地区 美国（5）
IPC部 B（5）
IPC大类 C01（5） B32（3） B82（3）
H01（3） B01（2） C07（2）
IPC小类 C01B（5）
IPC C01B032/194（5）
发明人 CHOI J（5）
公开年 2013（2）
申请年
专利权人 SAMSUNG ELEC.（3） CHOI J（2）

Manufacture of graphene balls involves preparing dispersion comprising graphene oxide, monosaccharide to polysaccharide reducing agent and specified amount of aqueous ammonia, and spray-drying resultant dispersion.

JANG H D, CHANG H K, CHOI J H, JANG H, CHANG H, CHOI J, ZHANG X

Graphene useful in a device including a sensor and FET, comprises an etched edge portion, where the etched edge portion comprises a functional group e.g. ketone, aldehyde and carboxylic acid.

CHOI W M, HONG B H, CHOI J

Passive element layer of e.g. display element used in e.g. electric equipment, has main layer that is provided with electromagnetic wave attenuation and heat radiation function at near-field region, and is equipped with graphene layer.

KIM S W, HONG B H, CHOI J, KANG J, HWANG S H, BUNG C J, HUI H B, HWI H S, MO G J, U KIM S, HEE H B

Composition, useful in electrode, which is useful in display device comprising e.g. organic light emitting display device, and in solar cell, comprises graphene and dopant comprising an organic dopant and/or inorganic dopant.

SHIN H, CHOI W, CHOI J, YOON S, SHIN H J, CHOI W M, CHOI J Y, YOON S M

Preparing graphene sheet, useful in e.g. electrical device, comprises forming film comprising graphitizing catalyst, heat-treating gaseous carbon source in presence of the catalyst to form graphene, and cooling graphene to form sheet.

CHOI J, SHIN H, YOON S, CHOI J Y, SHIN H J, YOON S M, IN Z