title: Nonvacuum, maskless fabrication of a flexible metal grid transparent conductor by low-temperature selective laser sintering of nanoparticle ink.
abstract: We introduce a facile approach to fabricate a metallic grid transparent conductor on a flexible substrate using selective laser sintering of metal nanoparticle ink. The metallic grid transparent conductors with high transmittance (>85%) and low sheet resistance (30 Ω/sq) are readily produced on glass and polymer substrates at large scale without any vacuum or high-temperature environment. Being a maskless direct writing method, the shape and the parameters of the grid can be easily changed by CAD data. The resultant metallic grid also showed a superior stability in terms of adhesion and bending. This transparent conductor is further applied to the touch screen panel, and it is confirmed that the final device operates firmly under continuous mechanical stress.
authors.affiliation: Applied Nano Technology and Science Lab, Department of Mechanical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 305-701, Korea.
authors.forename: Sukjoon
authors.initials: S
authors.lastname: Hong
authors.forename: Junyeob
authors.initials: J
authors.lastname: Yeo
authors.forename: Gunho
authors.initials: G
authors.lastname: Kim
authors.forename: Dongkyu
authors.initials: D
authors.lastname: Kim
authors.forename: Habeom
authors.initials: H
authors.lastname: Lee
authors.forename: Jinhyeong
authors.initials: J
authors.lastname: Kwon
authors.forename: Hyungman
authors.initials: H
authors.lastname: Lee
authors.forename: Phillip
authors.initials: P
authors.lastname: Lee
authors.forename: Seung Hwan
authors.initials: SH
authors.lastname: Ko