Lg Display Co., Ltd.

Seoul National University

Industry-University Cooperation Foundation Hanyang University

Ki Seok Chang

Wook Sung Kim

Sung Pil Ryu

Ki Tae Nam

Sung Yong Kang

Hye Eun Lee

Hyoun Woo Kim

Hyo Yong Ahn

Myong Sik Choi

Jae Hoon Bang

Han Saem Kang

Yong Jung Kwon

A method of manufacturing a graphene-tin oxide nanocomposite comprises dispersing graphene and tin oxide in an organic solvent to prepare a dispersion solution, drying the dispersion solution to obtain a powdery mixture, and irradiating the mixture with microwaves to obtain a graphene-tin oxide nanocomposite. Irradiation of graphene and tin oxide with microwaves results in the simplification of the manufacturing process of graphene-tin oxide nanocomposites and a decrease in manufacturing time and cost, and produce graphene-tin oxide nanocomposites at low temperatures. Further, the graphene-tin oxide nanocomposite with improved sensitivity to NO2 gas may be produced.

Method for preparing graphene-tin oxide nanocomposite, and graphene-tin oxide nanocomposite

The present disclosure relates to an encoding method and a decoding method using a chiral metal nanostructure. The encoding method according to an aspect of the present disclosure includes preparing a plurality of metal nanostructures having a chiral structure; obtaining the optical data of the plurality of metal nanostructures, and preparing a security medium including the plurality of metal.

Encoding method and decoding method using metal nanostructures

Growing community of inventors

Paju-si, South Korea

Ki Seok Chang