title: Palladium Nanoribbon Array for Fast Hydrogen Gas Sensing with Ultrahigh Sensitivity.
abstract: A lithographically aligned palladium nano-ribbon (Pd-NRB) array with gaps of less than 40 nm is fabricated on a poly(ethylene terephthalate) substrate using the direct metal transfer method. The 200 μm Pd-NRB hydrogen gas sensor exhibits an unprecedented sensitivity of 10(9) % after bending treatment, along with fast sensing behavior (80% response time of 3.6 s and 80% recovery time of 8.7 s) at room temperature.
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Yusin
authors.initials: Y
authors.lastname: Pak
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Namsoo
authors.initials: N
authors.lastname: Lim
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Yogeenth
authors.initials: Y
authors.lastname: Kumaresan
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Ryeri
authors.initials: R
authors.lastname: Lee
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Kihyeun
authors.initials: K
authors.lastname: Kim
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Tae Heon
authors.initials: TH
authors.lastname: Kim
authors.affiliation: Korea Photonics Technology Institute, Chumdan 4-ro 5, Buk-gu, Gwangju, 500-779, South Korea.
authors.forename: Sang-Mook
authors.initials: SM
authors.lastname: Kim
authors.affiliation: Creative Future Research Laboratory, Electronics and Telecommunications Research Institute, 218 Gajeong-ro, Yuseong, Daejeon, 305-700, South Korea.
authors.forename: Jin Tae
authors.initials: JT
authors.lastname: Kim
authors.affiliation: Department of Materials Science and Engineering, Korea University, Anam-ro 145, Seongbuk-gu, Seoul, 136-71, South Korea.
authors.forename: Heon
authors.initials: H
authors.lastname: Lee
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Moon-Ho
authors.initials: MH
authors.lastname: Ham
authors.affiliation: School of Materials Science and Engineering, Gwangju Institute of Science and Technology, 261 Cheomdan-gwagiro, Buk-gu, Gwangju, 500-712, South Korea.
authors.forename: Gun-Young
authors.initials: GY
authors.lastname: Jung
keywords: direct metal transfer; hydrogen gas; lithigraphic alignment; palladium nanoribbons; sensors