国家/地区 中国（3）
IPC部 C（3）
IPC大类 C01（2）
IPC小类 C01B（2）
IPC C01B031/04（2）
发明人 FENG J（3）
公开年 2012（3）
申请年 2012（2） 
专利权人

Organic electroluminescent device based on laser reduction patterned graphene electrode comprises substrate, extraction electrode, organic functional layer and cathode, hole injection layer, hole transporting layer and light emitting layer.

CHEN L, FENG J, SUN H

Preparing graphene quantum dot useful for preparing e.g. biosensor, comprises dispersing graphene oxide in water by adding amine passivator, and reacting carboxy and hydroxy functional groups of graphene oxide during hydrothermal reaction.

FENG J, WU P, ZHANG Z

Preparing graphene used in the field of electrochemistry, comprises reacting graphite oxide solution with metal liquid ammonia, purifying, and separating to obtain product.

FENG J, WU Z, ZHANG J, ZHANG Z, ZHAO C