国家/地区 韩国（7） 美国（5） 世界知识产权组织（2）
IPC部 C（5） H（4） B（2）
IPC大类 H01（4） C01（3） C09（2）
IPC小类 C01B（3） C01G（2） C09K（2）
H01L（2） H01M（2）
IPC C01B031/04（3） C09K011/54（2）
发明人 CHOI W（7）
公开年
申请年 2015（2）  2019（2） 
专利权人 KOREA INST SCI TECHNOLOGY（7）

Preparation of metal nanoparticle-carbon composite used in catalyst for fuel cell electrode, involves heating mixed solution comprising thiometalate precursor and carbon support to form thiometalate-carbon complex, and heating complex.

SUNG S, CHOI W, KIM J, KIM J M

Zinc oxide-based quantum dot aggregate for emitting white light, comprises a zinc oxide quantum dot and a zinc oxide-graphene quantum dot in mixture, where the zinc oxide quantum dot emits yellow light.

CHOI W, KIM H H, LEE Y, CHOI W K, HEE K, LEE Y J

Producing anatase titania-reduced graphene oxide composite as e.g. photocatalyst, comprises e.g. dissolving anatase titania precursor in a solvent to prepare precursor solution, and dispersing graphene oxide to prepare colloidal solution.

KIM J H, NAH I W, OH I H, CHUNG K Y, LEE J K, CHOI W, JUNG H G, OH S H

Preparation of carbon sheets used in e.g. electronic devices, involves growing graphene nanopowder comprised in graphene seed layer into carbon sheet comprising single layered graphene sheet of preset length and graphite sheet.

LEE J, PARK Y, CHOI W, LEE J K, PARK Y S, CHOI W K

Manufacturing single step thin film transistor, comprises preparing ink including graphene oxide or reduced graphene oxide dispersed solution; forming pattern on substrate; and forming semiconductor channel, and source and drain electrodes.

LIM J A, SONG Y W, HONG J M, CHOI W K, EOM D S, SONG Y, HONG J, CHOI W

Metal oxide semiconductor-graphene core-shell quantum dot useful in LED and its fabrication, comprises a structure, where metal oxide semiconductor nanoparticle is a core and the core is covered with graphene in a shell shape.

CHOI W, SON D I, KWON B W, PARK D H, GUK C W, IK S D, UK K B, HUI P D, WON K C, DONG I S, BYOUNG W K, DONG H P

Preparing graphene used in e.g. LEDs, transistors involves treating graphite with acid to form graphite oxide, mixing with metal oxide nanoparticles; and treating with acid to separate graphene.

CHOI W K, PARK D H, KWON B W, SON D I, CHOI W